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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_________________________________________________________ 
FORM 10-Q
 _________________________________________________________
(Mark One)

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2021
or
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                  to                     
Commission File Number: 1-14267
_________________________________________________________ 
REPUBLIC SERVICES, INC.
(Exact name of registrant as specified in its charter)
_________________________________________________________ 
Delaware 65-0716904
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer
Identification No.)
18500 North Allied Way 85054
Phoenix, Arizona
(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (480) 627-2700
_________________________________________________________ 

Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Stock, par value $0.01 per share RSG New York Stock Exchange
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  þ    No  ¨
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  þ    No  ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer
þ
Accelerated filer
¨
Smaller reporting company
Non-accelerated filer
¨
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes      No  þ
As of April 30, 2021, the registrant had outstanding 319,033,411 shares of Common Stock, par value $0.01 per share (excluding treasury shares of 305,422).


REPUBLIC SERVICES, INC.
INDEX
 
Item 1.
3
Consolidated Balance Sheets as of March 31, 2021 (Unaudited) and December 31, 2020
3
Unaudited Consolidated Statement of Income for the Three Months Ended March 31, 2021 and 2020
4
Unaudited Consolidated Statement of Comprehensive Income for the Three Months Ended March 31, 2021 and 2020
5
Unaudited Consolidated Statement of Stockholders' Equity for the Three Months Ended March 31, 2021 and 2020
6
Unaudited Consolidated Statement of Cash Flows for the Three Months Ended March 31, 2021 and 2020
7
8
Item 2.
Item 3.
Item 4.
Item 1.
Item 1A.
Item 2.
Item 3.
Item 4.
Item 5.
Item 6.

2

PART I - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS.

REPUBLIC SERVICES, INC.
CONSOLIDATED BALANCE SHEETS
(in millions, except per share data)
March 31, December 31,
2021 2020
  (Unaudited)  
ASSETS
Current assets:
Cash and cash equivalents $ 23.2  $ 38.2 
Accounts receivable, less allowance for doubtful accounts and other of $36.0 and $34.7, respectively
1,095.4  1,091.3 
Prepaid expenses and other current assets 324.5  392.3 
Total current assets 1,443.1  1,521.8 
Restricted cash and marketable securities 134.6  149.1 
Property and equipment, net 8,679.2  8,726.2 
Goodwill 12,047.2  12,046.4 
Other intangible assets, net 181.5  173.1 
Other assets 767.0  817.4 
Total assets $ 23,252.6  $ 23,434.0 
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable $ 678.3  $ 779.0 
Notes payable and current maturities of long-term debt 168.7  168.1 
Deferred revenue 359.3  345.6 
Accrued landfill and environmental costs, current portion 116.9  114.5 
Accrued interest 53.2  54.6 
Other accrued liabilities 772.4  820.2 
Total current liabilities 2,148.8  2,282.0 
Long-term debt, net of current maturities 8,594.2  8,766.1 
Accrued landfill and environmental costs, net of current portion 1,713.6  1,694.7 
Deferred income taxes and other long-term tax liabilities, net 1,254.7  1,238.8 
Insurance reserves, net of current portion 284.4  281.8 
Other long-term liabilities 618.6  681.8 
Commitments and contingencies
Stockholders’ equity:
Preferred stock, par value $0.01 per share; 50 shares authorized; none issued
—  — 
Common stock, par value $0.01 per share; 750 shares authorized; 319.3 and 318.8 issued including shares held in treasury, respectively
3.2  3.2 
Additional paid-in capital 2,757.3  2,741.4 
Retained earnings 5,911.2  5,751.8 
Treasury stock, at cost; 0.3 and — shares, respectively
(27.5) (0.1)
Accumulated other comprehensive loss, net of tax (11.3) (12.4)
Total Republic Services, Inc. stockholders’ equity 8,632.9  8,483.9 
Non-controlling interests in consolidated subsidiary 5.4  4.9 
Total stockholders’ equity 8,638.3  8,488.8 
Total liabilities and stockholders’ equity $ 23,252.6  $ 23,434.0 
The accompanying notes are an integral part of these statements.
3

REPUBLIC SERVICES, INC.
UNAUDITED CONSOLIDATED STATEMENTS OF INCOME
(in millions, except per share data)
 
Three Months Ended March 31,
  2021 2020
Revenue $ 2,596.4  $ 2,553.9 
Expenses:
Cost of operations 1,534.3  1,550.0 
Depreciation, amortization and depletion 282.1  268.6 
Accretion 20.5  20.9 
Selling, general and administrative 265.4  277.1 
Withdrawal costs - multiemployer pension funds
—  4.3 
Gain on business divestitures and impairments, net (1.1) (3.9)
Restructuring charges 2.8  3.8 
Operating income 492.4  433.1 
Interest expense (78.4) (96.7)
Loss from unconsolidated equity method investments (16.5) (13.2)
Interest income 0.8  0.3 
Other income (loss), net 1.8  (0.9)
Income before income taxes 400.1  322.6 
Provision for income taxes 103.7  75.8 
Net income 296.4  246.8 
Net income attributable to non-controlling interests in consolidated subsidiary
(0.5) (0.5)
Net income attributable to Republic Services, Inc. $ 295.9  $ 246.3 
Basic earnings per share attributable to Republic Services, Inc. stockholders:
Basic earnings per share $ 0.93  $ 0.77 
Weighted average common shares outstanding 319.4  319.6 
Diluted earnings per share attributable to Republic Services, Inc. stockholders:
Diluted earnings per share $ 0.93  $ 0.77 
Weighted average common and common equivalent shares outstanding
319.8  320.2 
Cash dividends per common share $ 0.425  $ 0.405 
The accompanying notes are an integral part of these statements.

4

REPUBLIC SERVICES, INC.
UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(in millions)
 
  Three Months Ended March 31,
  2021 2020
Net income $ 296.4  $ 246.8 
Other comprehensive income (loss), net of tax
Hedging activity:
Realized loss reclassified into earnings 1.1  0.8 
Unrealized loss —  (22.2)
Pension activity:
 Change in funded status of pension plan obligations
—  1.6 
Other comprehensive income (loss), net of tax 1.1  (19.8)
Comprehensive income 297.5  227.0 
Comprehensive income attributable to non-controlling interests (0.5) (0.5)
Comprehensive income attributable to Republic Services, Inc. $ 297.0  $ 226.5 
The accompanying notes are an integral part of these statements.

5

REPUBLIC SERVICES, INC.
UNAUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
(in millions)
Republic Services, Inc. Stockholders’ Equity
Common Stock Additional Paid-In Capital Retained Earnings Treasury Stock Accumulated Other Comprehensive Loss, Net of Tax Non-controlling
Interests In Consolidated Subsidiary
Shares Amount Shares Amount Total
Balance as of December 31, 2020 318.8  $ 3.2  $ 2,741.4  $ 5,751.8  —  $ (0.1) $ (12.4) $ 4.9  $ 8,488.8 
Net income —  —  —  295.9  —  —  —  0.5  296.4 
Other comprehensive loss —  —  —  —  —  —  1.1  —  1.1 
Cash dividends declared —  —  —  (135.6) —  —  —  —  (135.6)
Issuances of common stock 0.5  —  2.4  —  (0.2) (14.7) —  —  (12.3)
Stock-based compensation —  —  13.5  (0.9) —  —  —  —  12.6 
Purchase of common stock for treasury —  —  —  —  (0.1) (12.7) —  —  (12.7)
Balance as of March 31, 2021 319.3  $ 3.2  $ 2,757.3  $ 5,911.2  (0.3) $ (27.5) $ (11.3) $ 5.4  $ 8,638.3 


Republic Services, Inc. Stockholders’ Equity
Common Stock Additional Paid-In Capital Retained Earnings Treasury Stock Accumulated Other Comprehensive Income (Loss), Net of Tax Non-controlling
Interests In Consolidated Subsidiary
Shares Amount Shares Amount Total
Balance as of December 31, 2019 353.3  $ 3.5  $ 4,994.8  $ 5,317.3  (34.5) $ (2,199.6) $ 2.2  $ 2.7  $ 8,120.9 
Net income —  —  —  246.3  —  —  —  0.5  246.8 
Other comprehensive loss —  —  —  —  —  —  (19.8) —  (19.8)
Cash dividends declared —  —  —  (128.9) —  —  —  —  (128.9)
Issuances of common stock 0.7  —  7.5  —  (0.2) (17.0) —  —  (9.5)
Stock-based compensation —  —  10.8  (1.1) —  —  —  —  9.7 
Purchase of common stock for treasury —  —  —  —  (1.2) (98.8) —  —  (98.8)
Distributions paid —  —  —  —  —  —  —  (0.2) (0.2)
Balance as of March 31, 2020 354.0  $ 3.5  $ 5,013.1  $ 5,433.6  (35.9) $ (2,315.4) $ (17.6) $ 3.0  $ 8,120.2 
The accompanying notes are an integral part of these statements.

6

REPUBLIC SERVICES, INC.
UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS
(in millions)
  Three Months Ended March 31,
  2021 2020
Cash provided by operating activities:
Net income $ 296.4  $ 246.8 
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation, amortization, depletion and accretion 302.6  289.5 
Non-cash interest expense 16.0  15.0 
Stock-based compensation 12.6  9.9 
Deferred tax provision 15.3  17.6 
Provision for doubtful accounts, net of adjustments 4.3  4.9 
Gain on disposition of assets and asset impairments, net (0.6) (4.9)
Environmental adjustments (1.5) (0.4)
Loss from unconsolidated equity method investments 16.5  13.2 
Other non-cash items (0.5) 5.5 
Change in assets and liabilities, net of effects from business acquisitions and divestitures:
Accounts receivable (8.9) 28.0 
Prepaid expenses and other assets 62.5  88.2 
Accounts payable 27.6  (37.2)
Capping, closure and post-closure expenditures (11.0) (8.7)
Remediation expenditures (8.9) (17.2)
Other liabilities (61.4) (54.4)
Cash provided by operating activities 661.0  595.8 
Cash used in investing activities:
Purchases of property and equipment (331.0) (373.1)
Proceeds from sales of property and equipment 2.1  6.0 
Cash used in acquisitions and investments, net of cash and restricted cash acquired (18.0) (61.0)
Cash received from business divestitures 0.8  (0.2)
Purchases of restricted marketable securities (7.4) (14.0)
Sales of restricted marketable securities 8.9  5.6 
Other —  (25.0)
Cash used in investing activities (344.6) (461.7)
Cash (used in) provided by financing activities:
Proceeds from notes payable and long-term debt, net of fees 1,242.4  1,974.9 
Proceeds from issuance of senior notes, net of discount and fees —  985.6 
Payments of notes payable and long-term debt and senior notes (1,422.5) (2,688.7)
Issuances of common stock, net (12.3) (9.5)
Purchases of common stock for treasury (12.7) (98.8)
Cash dividends paid (135.5) (129.2)
Distributions paid to non-controlling interests in consolidated subsidiary —  (0.2)
Contingent consideration payments (1.7) (2.2)
Cash (used in) provided by financing activities (342.3) 31.9 
(Decrease) increase in cash, cash equivalents, restricted cash and restricted cash equivalents (25.9) 166.0 
Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of year 114.2  177.4 
Cash, cash equivalents, restricted cash and restricted cash equivalents at end of period $ 88.3  $ 343.4 
The accompanying notes are an integral part of these statements.
7

REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1. BASIS OF PRESENTATION
Republic Services, Inc., a Delaware corporation, and its consolidated subsidiaries (also referred to collectively as Republic, the Company, we, us, or our), is one of the largest providers of environmental services in the United States, as measured by revenue. We manage and evaluate our operations through three operating segments, Group 1, Group 2, and environmental solutions.
The unaudited consolidated financial statements include the accounts of Republic Services, Inc. and its wholly owned and majority owned subsidiaries in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP). We account for investments in entities in which we do not have a controlling financial interest under the equity method of accounting or, for investments that do not meet the criteria to be accounted for under the equity method, we reflect these investments at their fair value when it is readily determinable. If fair value is not readily determinable, we use an alternative measurement approach. All material intercompany accounts and transactions have been eliminated in consolidation.
We have prepared these unaudited consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Certain information related to our organization, significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. In the opinion of management, these financial statements include all adjustments that, unless otherwise disclosed, are of a normal recurring nature and necessary for a fair presentation of the financial position, results of operations and cash flows for the periods presented. Operating results for interim periods are not necessarily indicative of the results you can expect for a full year. You should read these financial statements in conjunction with our audited consolidated financial statements and notes thereto appearing in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020.
For comparative purposes, certain prior year amounts have been reclassified to conform to the current year presentation. All dollar amounts in tabular presentations are in millions, except per share amounts and unless otherwise noted.
Management’s Estimates and Assumptions
In preparing our financial statements, we make numerous estimates and assumptions that affect the amounts reported in these financial statements and accompanying notes. We must make these estimates and assumptions because certain information we use is dependent on future events, cannot be calculated with a high degree of precision from data available or simply cannot be readily calculated based on generally accepted methodologies. In preparing our financial statements, the more critical and subjective areas that deal with the greatest amount of uncertainty relate to our accounting for our long-lived assets, including recoverability, landfill development costs, and final capping, closure and post-closure costs; our valuation allowances for accounts receivable and deferred tax assets; our liabilities for potential litigation, claims and assessments; our liabilities for environmental remediation, multiemployer pension funds, employee benefit plans, deferred taxes, uncertain tax positions, and insurance reserves; and our estimates of the fair values of assets acquired and liabilities assumed in any acquisition. Each of these items is discussed in more detail in our description of our significant accounting policies in Note 2, Summary of Significant Accounting Policies, of the Notes to Consolidated Financial Statements in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020. Our actual results may differ significantly from our estimates.
In March 2020, the World Health Organization declared the outbreak of a new strain of coronavirus (COVID-19) a pandemic. The COVID-19 pandemic has negatively impacted the global economy, disrupted global supply chains and created significant volatility and disruption of financial markets. The full extent of the impact of the COVID-19 pandemic on our operations and financial performance will depend on future developments, including the duration and spread of the pandemic, all of which are uncertain and cannot be predicted at this time.
In mid-March 2020, certain customers in our small- and large-container businesses began adjusting their service levels, which included a decrease in the frequency of pickups or a temporary pause in service. In addition, we experienced a decline in volumes disposed at certain of our landfills and transfer stations. As service levels decreased, we also experienced a decrease in certain costs of our operations which are variable in nature. This decline in service activity peaked in the first half of April 2020 and improved sequentially through March 31, 2021.
In April 2020, we launched our Committed to Serve initiative and committed $20 million to support frontline employees and their families, as well as small business customers in the local communities we serve. In addition to this initiative, we have experienced an increase in certain costs of doing business as a direct result of the COVID-19 pandemic, including costs for additional safety equipment and hygiene products and increased facility and equipment cleaning. These costs are intended to assist in protecting the safety of our frontline employees as we continue to provide an essential service to our customers. In
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REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)


December 2020, we recognized our frontline employees for their commitment and contributions to their communities during the pandemic with a $500 award that was paid in January 2021. In addition, we incurred incremental costs associated with expanding certain aspects of our existing healthcare programs. We expect to incur similar costs throughout 2021, and potentially into future years, although we expect the amount of such costs annually to be less than those incurred in 2020.
New Accounting Pronouncements
Accounting Standards Adopted
Effective January 1, 2021, we adopted the following accounting standards updates (ASUs) as issued by the Financial Accounting Standards Board (FASB):
ASU Effective Date
ASU 2018-14
Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans
January 1, 2021
ASU 2019-12
Simplifying the Accounting for Income Taxes
January 1, 2021
Changes to the Disclosure Requirements for Defined Benefit Plans
Effective January 1, 2021, we adopted ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20) Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans (ASU 2018-14) on a retrospective basis. The standard removes disclosures that are no longer considered cost beneficial, clarifies the specific requirements of disclosures, and adds disclosure requirements identified as relevant. Our adoption of ASU 2018-14 did not have a material impact on our consolidated financial statements.
Simplifying the Accounting for Income Taxes
Effective January 1, 2021, we adopted ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12). ASU 2019-12 attempts to simplify aspects of accounting for franchise taxes and enacted changes in tax laws or rates, and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. Our adoption of ASU 2019-12 did not have a material impact on our consolidated financial statements.
Accounting Standards Updates Issued but not yet Adopted
Reference Rate Reform
In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference
Rate Reform on Financial Reporting (ASU 2020-04). ASU 2020-04 provides optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The amendments in ASU 2020-04 provide optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. ASU 2020-04 is effective for all entities upon adoption during the period from March 12, 2020 through December 31, 2022. We are currently assessing the effect this guidance may have on our consolidated financial statements.
9

REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)


2. BUSINESS ACQUISITIONS, INVESTMENTS AND RESTRUCTURING CHARGES
Acquisitions
We acquired various environmental services businesses during the three months ended March 31, 2021 and 2020. The purchase price paid for these business acquisitions and the allocations of the purchase price follows:
2021 2020
Purchase price:
Cash used in acquisitions, net of cash acquired
$ 15.8  $ 52.2 
Holdbacks
2.0  2.5 
Fair value, future minimum finance lease payments
—  0.3 
Total $ 17.8  $ 55.0 
Allocated as follows:
Accounts receivable
$ 0.5  $ 2.3 
Property and equipment
3.4  17.3 
Operating right-of-use lease assets
—  0.2 
Other assets
—  0.2 
Accounts payable
—  (1.2)
Environmental remediation liabilities
—  (1.5)
Operating right-of-use lease liabilities
—  (0.2)
Other liabilities
(0.3) (0.9)
Fair value of tangible assets acquired and liabilities assumed 3.6  16.2 
Excess purchase price to be allocated $ 14.2  $ 38.8 
Excess purchase price allocated as follows:
Other intangible assets
$ 1.9  $ 1.8 
Goodwill
12.3  37.0 
Total allocated $ 14.2  $ 38.8 
The purchase price allocations are preliminary and based on information existing at the acquisition dates. Accordingly, the purchase price allocations are subject to change. Substantially all of the goodwill and intangible assets recorded for these acquisitions are deductible for tax purposes.
These acquisitions are not material to the Company's results of operations, individually or in the aggregate. As a result, no pro forma financial information is provided.
On May 5, 2021, we acquired all of the membership interests of Santek Waste Services, LLC (Santek). Santek's vertically integrated recycling and waste services operations are primarily located in the southeastern United States and complement Republic's existing core competencies and expertise in the environmental services industry. A preliminary allocation of purchase price will be included in our consolidated balance sheet as of June 30, 2021, and we expect our valuations to be substantially completed by the end of 2021.
Investments
In 2021 and 2020, we acquired non-controlling equity interests in certain limited liability companies that qualified for investment tax credits under Section 48 of the Internal Revenue Code. In exchange for our non-controlling interests, we made capital contributions of $2.2 million and $9.4 million, which were recorded to other assets in our March 31, 2021 and 2020 consolidated balance sheets, respectively. During the three months ended March 31, 2021 and 2020, we reduced the carrying value of these investments by $13.7 million and $13.2 million, respectively, as a result of cash distributions and our share of income and loss pursuant to the terms of the limited liability company agreements. Additionally, during the three months ended March 31, 2020, we reduced the carrying value of these investments, and our effective tax rate reflected a benefit due to tax credits related to certain investments. For further discussion regarding our income taxes, see Note 8, Income Taxes.
Restructuring Charges
In 2020, we incurred costs related to the redesign of certain back-office software systems, which continued into 2021. In addition, in July 2020, we eliminated certain back-office support positions in response to a decline in the underlying demand for
10

REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)


services resulting from the COVID-19 pandemic. During the three months ended March 31, 2021 and 2020, we incurred restructuring charges of $2.8 million and $3.8 million, respectively. During the same periods, we paid $4.0 million and $3.8 million, respectively, related to these restructuring efforts.
During the remainder of 2021, we expect to incur additional restructuring charges of approximately $10 million to $15 million primarily related to the redesign of certain of our back-office software systems. Substantially all of these restructuring charges will be recorded in Corporate entities and other.
3. GOODWILL AND OTHER INTANGIBLE ASSETS, NET
Goodwill
A summary of the activity and balances in goodwill accounts by reporting segment follows:
Balance as of December 31, 2020 Acquisitions Divestitures Adjustments to Acquisitions Balance as of March 31, 2021
Group 1 $ 6,404.9  $ 6.4  $ —  $ (11.5) $ 6,399.8 
Group 2 5,641.5  5.9  —  —  5,647.4 
Corporate entities and other —  —  —  —  — 
Total $ 12,046.4  $ 12.3  $ —  $ (11.5) $ 12,047.2 
Adjustments to acquisitions during the three months ended March 31, 2021 primarily related to changes in our valuation of customer relationship intangible assets as a result of obtaining new information regarding the acquisitions that closed in December 2020.
Other Intangible Assets, Net
Other intangible assets, net, include values assigned to customer relationships, non-compete agreements and trade names, and are amortized over periods ranging from 1 to 16 years. A summary of the activity and balances by intangible asset type follows:

  Gross Intangible Assets Accumulated Amortization
  Balance as of December 31, 2020 Acquisitions
Adjustments
and Other
Balance as of March 31, 2021 Balance as of December 31, 2020 Additions Charged to Expense
Adjustments
and Other
Balance as of March 31, 2021 Other Intangible Assets, Net as of March 31, 2021
Customer relationships
$ 788.1  $ 1.4  $ 14.0  $ 803.5  $ (639.5) $ (5.9) $ —  $ (645.4) $ 158.1 
Non-compete agreements
51.4  0.5  (0.2) 51.7  (39.1) (1.3) —  (40.4) 11.3 
Other intangible assets
57.5  —  —  57.5  (45.3) (0.1) —  (45.4) 12.1 
Total $ 897.0  $ 1.9  $ 13.8  $ 912.7  $ (723.9) $ (7.3) $ —  $ (731.2) $ 181.5 

4. OTHER ASSETS
Prepaid Expenses and Other Current Assets
A summary of prepaid expenses and other current assets as of March 31, 2021 and December 31, 2020 follows:
2021 2020
Income taxes receivable $ 82.1  $ 170.7 
Prepaid expenses 81.3  77.7 
Inventories 61.1  59.1 
Other non-trade receivables 46.9  32.2 
Reinsurance receivable 34.8  34.1 
Prepaid fees for cloud-based hosting arrangements, current 12.3  11.8 
Other current assets 6.0  6.7 
Total $ 324.5  $ 392.3 
11

REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)


Other Assets
A summary of other assets as of March 31, 2021 and December 31, 2020 follows:
2021 2020
Operating right-of-use lease assets $ 220.8  $ 218.8 
Deferred compensation plan 135.7  131.8 
Investments 130.8  145.4 
Reinsurance receivable 85.0  84.8 
Deferred contract costs and sales commissions 80.8  82.3 
Prepaid fees and capitalized implementation costs for cloud-based hosting arrangements 30.5  29.5 
Other derivative assets 24.7  63.8 
Amounts recoverable for capping, closure and post-closure obligations 18.9  18.5 
Interest rate swaps 8.6  10.0 
Deferred financing costs 2.0  2.7 
Other 29.2  29.8 
Total $ 767.0  $ 817.4 

5. OTHER LIABILITIES
Other Accrued Liabilities
A summary of other accrued liabilities as of March 31, 2021 and December 31, 2020 follows:
2021 2020
Insurance reserves, current $ 174.6  $ 167.5 
Accrued payroll and benefits 157.6  221.1 
Accrued fees and taxes 137.0  132.3 
Accrued dividends 135.6  135.5 
Operating right-of-use lease liabilities, current 35.8  33.5 
Ceded insurance reserves, current 34.8  34.1 
Accrued professional fees and legal settlement reserves 24.3  7.2 
Other 72.7  89.0 
Total $ 772.4  $ 820.2 
Other Long-Term Liabilities
A summary of other long-term liabilities as of March 31, 2021 and December 31, 2020 follows:
2021 2020
Operating right-of-use lease liabilities $ 207.2  $ 206.6 
Deferred compensation plan liability 128.2  126.6 
Ceded insurance reserves 85.0  84.8 
Contingent purchase price and acquisition holdbacks 66.0  67.3 
Other derivative liabilities 60.7  103.0 
Withdrawal liability - multiemployer pension funds 22.3  22.3 
Pension and other post-retirement liabilities 5.5  5.5 
Legal settlement reserves 4.1  20.2 
Other 39.6  45.5 
Total $ 618.6  $ 681.8 

12

REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)


6. LANDFILL AND ENVIRONMENTAL COSTS
As of March 31, 2021, we owned or operated 186 active solid waste landfills with total available disposal capacity estimated to be 5.0 billion in-place cubic yards. Additionally, we had post-closure responsibility for 128 closed landfills.
Accrued Landfill and Environmental Costs
A summary of accrued landfill and environmental liabilities as of March 31, 2021 and December 31, 2020 follows:
2021 2020
Landfill final capping, closure and post-closure liabilities $ 1,370.3  $ 1,346.4 
Environmental remediation 460.2  462.8 
Total accrued landfill and environmental costs 1,830.5  1,809.2 
Less: current portion (116.9) (114.5)
Long-term portion $ 1,713.6  $ 1,694.7 
Final Capping, Closure and Post-Closure Costs
The following table summarizes the activity in our asset retirement obligation liabilities, which includes liabilities for final capping, closure and post-closure, for the three months ended March 31, 2021 and 2020:
2021 2020
Asset retirement obligation liabilities, beginning of year $ 1,346.4  $ 1,335.6 
Non-cash additions 10.8  11.5 
Acquisitions, net of divestitures and other adjustments 0.2  0.1 
Asset retirement obligation adjustments 3.4  (0.5)
Payments (11.0) (8.7)
Accretion expense 20.5  20.9 
Asset retirement obligation liabilities, end of period 1,370.3  1,358.9 
Less: current portion (60.1) (74.4)
Long-term portion $ 1,310.2  $ 1,284.5 
We review annually, in the fourth quarter, and update as necessary, our estimates of asset retirement obligation liabilities. However, if there are significant changes in the facts and circumstances related to a site during the year, we will update our assumptions prospectively in the period that we know all the relevant facts and circumstances and make adjustments as appropriate.
Landfill Operating Expenses
In the normal course of business, we incur various operating costs associated with environmental compliance. These costs include, among other things, leachate treatment and disposal, methane gas and groundwater monitoring, systems maintenance, interim cap maintenance, costs associated with the application of daily cover materials, and the legal and administrative costs of ongoing environmental compliance. These costs are expensed as cost of operations in the periods in which they are incurred.
Environmental Remediation Liabilities
We accrue for remediation costs when they become probable and can be reasonably estimated. There can sometimes be a range of reasonable estimates of the costs associated with remediation of a site. In these cases, we use the amount within the range that constitutes our best estimate. If no amount within the range appears to be a better estimate than any other, we use the amount that is at the low end of the range. It is reasonably possible that we will need to adjust the liabilities recorded for remediation to reflect the effects of new or additional information, to the extent such information impacts the costs, timing or duration of the required actions. If we used the reasonably possible high ends of our ranges, our aggregate potential remediation liability as of March 31, 2021 would be approximately $356 million higher than the amount recorded. Future changes in our estimates of the cost, timing or duration of the required actions could have a material adverse effect on our consolidated financial position, results of operations and cash flows.
13

REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)


The following table summarizes the activity in our environmental remediation liabilities for the three months ended March 31, 2021 and 2020:
2021 2020
Environmental remediation liabilities, beginning of year $ 462.8  $ 500.2 
Net adjustments charged to expense 2.0  (0.4)
Payments (8.9) (17.2)
Accretion expense (non-cash interest expense) 4.3  4.6 
Acquisitions, net of divestitures and other adjustments —  1.5 
Environmental remediation liabilities, end of period 460.2  488.7 
Less: current portion (56.8) (56.7)
Long-term portion $ 403.4  $ 432.0 
Bridgeton Landfill. During the three months ended March 31, 2021, we paid $3.2 million related to management and monitoring of the remediation area for our closed Bridgeton Landfill in Missouri. We continue to work with state and federal regulatory agencies on our remediation efforts. From time to time, this may require us to modify our future operating timeline and procedures, which could result in changes to our expected liability. As of March 31, 2021, the remediation liability recorded for this site was $115.7 million, of which approximately $14 million is expected to be paid during the remainder of 2021. We believe the remaining reasonably possible high end of our range would be approximately $140 million higher than the amount recorded as of March 31, 2021.
West Lake Landfill Superfund Site. Our subsidiary Bridgeton Landfill, LLC is one of several currently designated Potentially Responsible Parties for the West Lake Landfill Superfund site (West Lake) in Missouri. On September 27, 2018, the U.S. Environmental Protection Agency (EPA) issued a Record of Decision Amendment for West Lake that includes a total undiscounted cost estimate of $229 million over a four- to five-year design and construction timeline. On March 11, 2019, the EPA issued special notice letters under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA) to Bridgeton Landfill, LLC and the other currently designated Potentially Responsible Parties to initiate negotiations to implement the remedy. At this time we are neither able to predict the final design of that remedy, nor estimate how much of the future response costs of the site our subsidiary may agree or be required to pay. During any subsequent administrative proceedings or litigation, our subsidiary will vigorously contest liability for the costs of remediating radiologically-impacted materials generated on behalf of the federal government during the Manhattan Project and delivered to the site by an Atomic Energy Commission licensee and its subcontractor. Currently, we believe we are adequately reserved for our expected remediation liability. However, subsequent events related to remedy design, divisibility, or allocation may require us to modify our expected remediation liability.
14

REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)


7. DEBT
The carrying value of our credit facilities, finance leases and long-term debt as of March 31, 2021 and December 31, 2020 is listed in the following table, and is adjusted for the fair value of interest rate swaps, unamortized discounts, deferred issuance costs and the unamortized portion of adjustments to fair value recorded in purchase accounting. Original issue discounts, deferred issuance costs, and adjustments to fair value recorded in purchase accounting are amortized to interest expense over the term of the applicable instrument using the effective interest method.
    March 31, 2021 December 31, 2020
Maturity Interest Rate Principal Adjustments Carrying Value Principal Adjustments Carrying Value
Credit facilities:
Uncommitted Credit Facility
Variable $ 12.6  $ —  $ 12.6  $ —  $ —  $ — 
$1.0 billion - August 2021
Variable —  —  —  —  —  — 
$2.25 billion - June 2023
Variable —  —  —  186.0  —  186.0 
Senior notes:
May 2023 4.750 300.0  3.3  303.3  300.0  4.8  304.8 
August 2024 2.500 900.0  (6.2) 893.8  900.0  (6.6) 893.4 
March 2025 3.200 500.0  (2.8) 497.2  500.0  (3.0) 497.0 
November 2025 0.875 350.0  (3.1) 346.9  350.0  (3.3) 346.7 
July 2026 2.900 500.0  (3.2) 496.8  500.0  (3.3) 496.7 
November 2027 3.375 650.0  (4.3) 645.7  650.0  (4.5) 645.5 
May 2028 3.950 800.0  (13.7) 786.3  800.0  (14.2) 785.8 
March 2030 2.300 600.0  (6.4) 593.6  600.0  (6.5) 593.5 
February 2031 1.450 650.0  (8.6) 641.4  650.0  (8.6) 641.4 
February 2032 1.750 750.0  (6.9) 743.1  750.0  (7.1) 742.9 
March 2035 6.086 181.9  (13.2) 168.7  181.9  (13.4) 168.5 
March 2040 6.200 399.9  (3.6) 396.3  399.9  (3.6) 396.3 
May 2041 5.700 385.7  (5.1) 380.6  385.7  (5.1) 380.6 
March 2050 3.050 400.0  (7.2) 392.8  400.0  (7.3) 392.7 
Debentures:
May 2021 9.250 35.3  —  35.3  35.3  (0.1) 35.2 
September 2035 7.400 148.1  (31.9) 116.2  148.1  (32.1) 116.0 
Tax-exempt:
2021 - 2050
0.100 - 0.300
1,111.2  (6.3) 1,104.9  1,111.2  (6.5) 1,104.7 
Finance leases:
2021 - 2063
0.806 - 12.203
207.4  —  207.4  206.5  —  206.5 
Total Debt $ 8,882.1  $ (119.2) 8,762.9  $ 9,054.6  $ (120.4) 8,934.2 
Less: current portion
(168.7) (168.1)
Long-term portion $ 8,594.2  $ 8,766.1 
Credit Facilities
The 364-Day Credit Facility
In August 2020, we entered into a $1.0 billion 364-day unsecured revolving credit facility (the 364-Day Credit Facility), which matures in August 2021. At our option, borrowings under the 364-Day Credit Facility bear interest at a Base Rate, or a Eurodollar Rate, plus an applicable margin based on our Debt Ratings (all as defined in the 364-Day Credit Facility agreement).
The 364-Day Credit Facility is subject to facility fees based on applicable rates defined in the 364-Day Credit Facility agreement and the aggregate commitment, regardless of usage. Availability under our 364-Day Credit Facility totaled
15

REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)


$1.0 billion as of March 31, 2021 and December 31, 2020. The 364-Day Credit Facility can be used for working capital, capital expenditures, acquisitions, and other general corporate purposes. The 364-Day Credit Facility agreement requires us to comply with financial and other covenants, which are consistent with the financial and other covenants included in our Credit Facility. We may pay dividends and repurchase common stock if we are in compliance with these covenants.
As of March 31, 2021 and December 31, 2020, we had no borrowings outstanding under our 364-Day Credit Facility.
The Credit Facility
In 2018, we entered into a $2.25 billion unsecured revolving credit facility (as amended, the Credit Facility), which matures in June 2023. As permitted by the Credit Facility, we have the right to request two one-year extensions of the maturity date, but none of the lenders are committed to participate in such extension. The Credit Facility also includes a feature that allows us to increase availability, at our option, by an aggregate amount of up to $1.0 billion through increased commitments from existing lenders or the addition of new lenders. At our option, borrowings under the Credit Facility bear interest at a Base Rate, or a Eurodollar Rate, plus an applicable margin based on our Debt Ratings (all as defined in the Credit Facility agreement).
The Credit Facility is subject to facility fees based on applicable rates defined in the Credit Facility agreement and the aggregate commitment, regardless of usage. Availability under our Credit Facility totaled $1,873.0 million and $1,671.8 million as of March 31, 2021 and December 31, 2020, respectively. The Credit Facility can be used for working capital, capital expenditures, acquisitions, letters of credit and other general corporate purposes. The Credit Facility agreement requires us to comply with financial and other covenants. We may pay dividends and repurchase common stock if we are in compliance with these covenants.
As of March 31, 2021, we had no borrowings under our Credit Facility, and as of December 31, 2020, we had $186.0 million of borrowings under our Credit Facility. We had $361.3 million and $376.5 million of letters of credit outstanding under our Credit Facility as of March 31, 2021 and December 31, 2020, respectively.
Uncommitted Credit Facility
We also have an Uncommitted Credit Facility, which bears interest at LIBOR or a Cost of Funds rate (both as defined in the Uncommitted Credit Facility agreement), plus an applicable margin. We can use borrowings under the Uncommitted Credit Facility for working capital and other general corporate purposes. The agreement governing our Uncommitted Credit Facility requires us to comply with certain covenants. The Uncommitted Credit Facility may be terminated by either party at any time. As of March 31, 2021, we had $12.6 million outstanding under our Uncommitted Credit Facility. As of December 31, 2020, we had no borrowings outstanding under our Uncommitted Credit Facility.
Senior Notes and Debentures
In November 2020, we issued $350.0 million of 0.875% senior notes due November 2025 (the 0.875% Notes) and $750.0 million of 1.750% senior notes due February 2032 (the 1.750% Notes). We used the net proceeds from the 0.875% Notes and 1.750% Notes to redeem all $850.0 million of the outstanding 3.550% senior notes due June 2022 and $250.0 million of the $550.0 million outstanding 4.750% senior notes due May 2023 (the 4.750% Notes).
In August 2020, we issued $650.0 million of 1.450% senior notes due February 2031 (the 1.450% Notes). We used the net proceeds to redeem all $600.0 million of the outstanding 5.250% senior notes due November 2021 plus a make-whole premium of $34.0 million. The remaining proceeds were used for general corporate purposes.
In February 2020, we issued $600.0 million of 2.300% senior notes due March 2030 (the 2.300% Notes) and $400.0 million of 3.050% senior notes due March 2050 (the 3.050% Notes). We used the net proceeds from the 2.300% Notes and 3.050% Notes to repay $850.0 million of 5.000% senior notes that matured in March 2020. The remaining proceeds were used to repay amounts outstanding under our unsecured credit facilities as well as for general corporate purposes.
Our senior notes and debentures are general unsecured obligations. Interest is payable semi-annually.
Interest Rate Swap and Lock Agreements
Our ability to obtain financing through the capital markets is a key component of our financial strategy. Historically, we have managed risk associated with executing this strategy, particularly as it relates to fluctuations in interest rates, by using a combination of fixed and floating rate debt. From time to time, we also have entered into interest rate swap and lock agreements to manage risk associated with interest rates, either to effectively convert specific fixed rate debt to a floating rate (fair value hedges), or to lock interest rates in anticipation of future debt issuances (cash flow hedges).
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Fair Value Hedges
In 2013, we entered into various interest rate swap agreements relative to the 4.750% Notes. The goal was to reduce overall borrowing costs and rebalance our debt portfolio's ratio of fixed-to-floating interest rates. As of March 31, 2021, these swap agreements had a total notional value of $300.0 million and mature in May 2023, which is identical to the maturity of the hedged senior notes. We pay interest at floating rates based on changes in LIBOR and receive interest at a fixed rate of 4.750%. These transactions were designated as fair value hedges because the swaps hedge against the changes in fair value of the fixed rate senior notes resulting from changes in interest rates.
Contemporaneously with the $250.0 million partial redemption of the 4.750% Notes, we dedesignated the proportional share of these swap agreements as fair value hedges. There was no ineffectiveness recognized in the dedesignation of these fair value hedges. Following the dedesignation, the fair value of these free-standing derivatives was determined using standard valuation models with assumptions about interest rates being based on those observed in underlying markets (Level 2 in the fair value hierarchy). As of March 31, 2021 and December 31, 2020, these free-standing derivatives were reflected at their fair value of $7.2 million and $8.3 million, respectively, and were included in other assets in our consolidated balance sheets. For the three months ended March 31, 2021, we recognized a loss of $1.1 million directly in earnings as an adjustment to non-cash interest expense attributable to the change in fair value of the free-standing derivatives.
As of March 31, 2021 and December 31, 2020, the interest rate swap agreements that were designated as fair value hedges were reflected at their fair value of $8.6 million and $10.0 million, respectively, and were included in other assets in our consolidated balance sheets. To the extent they are effective, these interest rate swap agreements are included as an adjustment to long-term debt in our consolidated balance sheets.
We recognized net interest income of $2.0 million and $0.7 million during the three months ended March 31, 2021 and 2020, respectively, related to net settlements for these interest rate swap agreements, which was included as an offset to interest expense in our consolidated statements of income.
For the three months ended March 31, 2021, we recognized a gain of $1.5 million on the change in fair value of the hedged senior notes with an offsetting loss of $1.4 million on the related interest rate swaps. For the three months ended March 31, 2020, we recognized a loss of $9.7 million on the change in fair value of the hedged senior notes with an offsetting gain of $10.3 million on the related interest rate swaps. The change in both periods is attributable to changes in the benchmark interest rate. The difference of these fair value changes for the three months ended March 31, 2021 and 2020 was recorded directly in earnings as an adjustment to interest expense in our consolidated statements of income.
For further detail regarding the effect of our fair value hedging on interest expense, refer to Note 11, Financial Instruments, of the notes to our unaudited consolidated financial statements in Part I, Item 1 of this Quarterly Report on Form 10-Q.
Cash Flow Hedges
We have historically entered into multiple swap agreements designated as cash flow hedges to manage exposure to fluctuations in interest rates in anticipation of planned future issuances of senior notes. Upon the expected issuance of senior notes, we terminate the interest rate locks and settle with our counterparties. These transactions were accounted for as cash flow hedges. All of our cash flow hedges settled on or before December 31, 2020, thus there was no related asset or liability as of March 31, 2021 or December 31, 2020.
The fair value of our interest rate locks is determined using standard valuation models with assumptions about interest rates being based on those observed in underlying markets (Level 2 in the fair value hierarchy).
There was no unrealized loss or gain recognized in other comprehensive income for the three months ended March 31, 2021. Total unrealized loss recognized in other comprehensive income for interest rate locks was $22.2 million, net of tax, for the three months ended March 31, 2020.
As of March 31, 2021 and December 31, 2020, our previously terminated interest rate locks were recorded as components of accumulated other comprehensive loss, net of tax of $29.3 million and $30.4 million, respectively. The amortization of the terminated interest rate locks is recorded as an adjustment to interest expense over the life of the issued debt using the effective interest method. Over the next 12 months, we expect to amortize approximately $4.5 million, net of tax, from accumulated other comprehensive loss to interest expense as a yield adjustment of our senior notes.
For further detail regarding the effect of our cash flow hedging on interest expense, refer to Note 11, Financial Instruments, of the notes to our unaudited consolidated financial statements in Part I, Item 1 of this Quarterly Report on Form 10-Q.
Derivative Contracts
Contemporaneously with the issuance of our 2.300% Notes in February 2020, we amended interest rate lock agreements with an aggregate notional value of $550.0 million, extending the mandatory maturity date from 2020 to 2030, and dedesignated
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them as cash flow hedges (the 2020 Extended Interest Rate Locks). Contemporaneously with the issuance of our 2.500% Notes in August 2019, we amended interest rate lock agreements with an aggregate notional value of $375.0 million, extending the mandatory maturity date from 2019 to 2024, and dedesignated them as cash flow hedges (collectively with the 2020 Extended Interest Rate Locks referred to as the Extended Interest Rate Locks). There was no ineffectiveness recognized in the termination of these cash flow hedges. In addition, in both years we entered into offsetting interest rate swaps to offset future exposures to fair value fluctuations of the Extended Interest Rate Locks (the 2019 Offsetting Interest Rate Swap and the 2020 Offsetting Interest Rate Swap, or collectively the Offsetting Interest Rate Swaps). The fair value of these free-standing derivatives was determined using standard valuation models with assumptions about interest rates being based on those observed in underlying markets (Level 2 in the fair value hierarchy).
As of March 31, 2021 and December 31, 2020, the fair values of the Extended Interest Rate Locks were liabilities of $51.9 million and $103.0 million, respectively, which were included in other long-term liabilities in our consolidated balance sheets. As of March 31, 2021, the fair value of the 2019 Offsetting Interest Rate Swap was an asset of $17.5 million, which was recorded in other assets in our consolidated balance sheet, and the fair value of the 2020 Offsetting Interest Rate Swap was a liability of $8.8 million, which was included in other long-term liabilities in our consolidated balance sheet. As of December 31, 2020, the fair values of the Offsetting Interest Rate Swaps were assets of $55.5 million, which were included in other assets in our consolidated balance sheet. For the three months ended March 31, 2021, we recognized a gain of $47.1 million on the change in fair value of the Extended Interest Rate Locks with an offsetting loss of $46.7 million on the change in fair value of the Offsetting Interest Rate Swaps. For the three months ended March 31, 2020, we recognized a loss of $61.3 million on the change in fair value of the Extended Interest Rate Locks with an offsetting gain of $58.7 million on the change in fair value of the Offsetting Interest Rate Swaps. The changes in fair value were recorded directly in earnings as an adjustment to interest expense in our consolidated statements of income.
Tax-Exempt Financings
As of March 31, 2021 and December 31, 2020, we had $1,104.9 million and $1,104.7 million of certain variable rate tax-exempt financings outstanding, respectively, with maturities ranging from 2021 to 2050. During the second quarter of 2020, we issued $60.0 million of tax-exempt financings.
All of our tax-exempt financings are remarketed either quarterly or semiannually by remarketing agents to effectively maintain a variable yield. The holders of the bonds can put them back to the remarketing agents at the end of each interest period. If the remarketing agent is unable to remarket our bonds, the remarketing agent can put the bonds to us. In the event of a failed remarketing, we currently have availability under our $2.25 billion unsecured revolving credit facility to fund these bonds until they are remarketed successfully. Accordingly, we classified these borrowings as long-term in our consolidated balance sheets as of March 31, 2021 and December 31, 2020.
Finance Leases
We had finance lease liabilities of $207.4 million and $206.5 million as of March 31, 2021 and December 31, 2020, respectively, with maturities ranging from 2021 to 2063.
8. INCOME TAXES
Our effective tax rate, exclusive of non-controlling interests, for the three months ended March 31, 2021 and 2020 was 25.9% and 23.5%, respectively.
Cash paid for income taxes was a net refund of $0.4 million and a net payment of $1.4 million, respectively, for the three months ended March 31, 2021 and 2020.
We have deferred tax assets related to state net operating loss carryforwards. We provide a partial valuation allowance due to uncertainty surrounding the future utilization of these carryforwards in the taxing jurisdictions where the loss carryforwards exist. When determining the need for a valuation allowance, we consider all positive and negative evidence, including recent financial results, scheduled reversals of deferred tax liabilities, projected future taxable income and tax planning strategies. The realization of our deferred tax asset for state loss carryforwards ultimately depends upon the existence of sufficient taxable income in the appropriate state taxing jurisdictions in future periods. The weight given to the positive and negative evidence is commensurate with the extent such evidence can be objectively verified. We continue to regularly monitor both positive and negative evidence in determining the ongoing need for a valuation allowance. As of March 31, 2021, the valuation allowance associated with our state loss carryforwards was approximately $43 million.
We are subject to income tax in the United States, as well as in multiple state jurisdictions. Our compliance with income tax rules and regulations is periodically audited by taxing authorities. These authorities may challenge the positions taken in our tax filings. Our federal statute of limitations is closed for all years prior to 2015. We are currently under examination by the Internal
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Revenue Service (IRS) for tax years 2015 through 2017 and recently received an informal notification from the IRS of their intent to expand their examination to include our 2018 tax year. In addition, we are currently under state examination or administrative review in various jurisdictions for tax years 2012 through 2019.
We believe our recorded liabilities for uncertain tax positions are adequate. However, a significant assessment against us in excess of the liabilities recorded could have a material adverse effect on our consolidated financial position, results of operations and cash flows. As of March 31, 2021, we are unable to estimate the resolution of our gross unrecognized benefits over the next 12 months.
We recognize interest and penalties as incurred within the provision for income taxes in the consolidated statement of income. As of March 31, 2021, we accrued a liability for penalties of $0.3 million and a liability for interest (including interest on penalties) of $12.9 million related to our uncertain tax positions.
9. STOCK REPURCHASES, DIVIDENDS AND EARNINGS PER SHARE
Available Shares
We currently have approximately 12.3 million shares of common stock reserved for future grants under the Republic Services, Inc. 2021 Stock Incentive Plan.
Stock Repurchases
Stock repurchase activity during the three months ended March 31, 2021 and 2020 follows (in millions, except per share amounts):
Three Months Ended March 31,
2021 2020
Number of shares repurchased 0.1  1.2 
Amount paid $ 12.7  $ 98.8 
Weighted average cost per share $ 89.63  $ 85.06 
As of March 31, 2021 and 2020, no repurchased shares were pending settlement.
In October 2020, our Board of Directors approved a $2.0 billion share repurchase authorization effective starting January 1, 2021 and extending through December 31, 2023. Share repurchases under the program may be made through open market purchases or privately negotiated transactions in accordance with applicable federal securities laws. While the Board of Directors has approved the program, the timing of any purchases, the prices and the number of shares of common stock to be purchased will be determined by our management, at its discretion, and will depend upon market conditions and other factors. The share repurchase program may be extended, suspended or discontinued at any time. As of March 31, 2021, the remaining authorized purchase capacity under our October 2020 repurchase program was $2.0 billion. On a quarterly basis, our Board of Directors reviews the intrinsic value of our stock and the parameters around which we repurchase our shares.
Dividends
In February 2021, our Board of Directors approved a quarterly dividend of $0.425 per share. Cash dividends declared were $135.6 million for the three months ended March 31, 2021. As of March 31, 2021, we recorded a quarterly dividend payable of $135.6 million to shareholders of record at the close of business on April 1, 2021.
Earnings per Share
Basic earnings per share is computed by dividing net income attributable to Republic Services, Inc. by the weighted average number of common shares (including vested but unissued RSUs and PSUs) outstanding during the period. Diluted earnings per share is based on the combined weighted average number of common shares and common share equivalents outstanding, which include, where appropriate, the assumed exercise of employee stock options, unvested RSUs and unvested PSUs at the expected attainment levels. We use the treasury stock method in computing diluted earnings per share.
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Earnings per share for the three months ended March 31, 2021 and 2020 are calculated as follows (in thousands, except per share amounts):
Three Months Ended March 31,
  2021 2020
Basic earnings per share:
Net income attributable to Republic Services, Inc. $ 295,900  $ 246,300 
Weighted average common shares outstanding 319,449  319,577 
Basic earnings per share $ 0.93  $ 0.77 
Diluted earnings per share:
Net income attributable to Republic Services, Inc. $ 295,900  $ 246,300 
Weighted average common shares outstanding 319,449  319,577 
Effect of dilutive securities:
Options to purchase common stock —  92 
Unvested RSU awards 141  217 
Unvested PSU awards
242  345 
Weighted average common and common equivalent shares outstanding
319,832  320,231 
Diluted earnings per share $ 0.93  $ 0.77 
During the three months ended March 31, 2021, there were less than 0.1 million antidilutive securities outstanding. During the three months ended March 31, 2020 there were 0.1 million antidilutive securities outstanding.
10. CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS BY COMPONENT
A summary of changes in accumulated other comprehensive loss, net of tax, by component, for the three months ended March 31, 2021 follows:
Cash Flow Hedges Defined Benefit Pension Items Total
Balance as of December 31, 2020
$ (30.4) $ 18.0  $ (12.4)
Amounts reclassified from accumulated other comprehensive loss 1.1  —  1.1 
Net current period other comprehensive income 1.1  —  1.1 
Balance as of March 31, 2021 $ (29.3) $ 18.0  $ (11.3)
A summary of reclassifications out of accumulated other comprehensive loss for the three months ended March 31, 2021 and 2020 follows:
Three Months Ended March 31,
2021 2020
Details about Accumulated Other Comprehensive Loss Components Amount Reclassified from Accumulated Other Comprehensive Loss Affected Line Item in the Statement where Net Income is Presented
Loss on cash flow hedges:
Terminated interest rate locks $ (1.5) $ (1.1) Interest expense
Total before tax (1.5) (1.1)
Tax benefit 0.4  0.3 
Total loss reclassified into earnings, net of tax $ (1.1) $ (0.8)

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)

11. FINANCIAL INSTRUMENTS
The effect of our hedging relationships and derivative instruments on the consolidated statements of income for the three months ended March 31, 2021 and 2020 follows:
Classification and amount of gain (loss) recognized in income on hedging relationships and derivative instruments
Three Months Ended March 31,
2021 2020
Interest Expense Interest Expense
Total amount of expense line items presented in the consolidated statements of income in which the effects of hedging relationships and derivative instruments are recorded $ (78.4) $ (96.7)
The effects of fair value and cash flow hedging relationships in Subtopic 815-20:
Gain on fair value hedging relationships:
Interest rate swaps:
Net swap settlements $ 2.0  $ 0.7 
Net periodic earnings $ 0.1  $ 0.6 
Loss on cash flow hedging relationships:
Interest rate swap locks:
Amount of loss reclassified from accumulated other comprehensive loss into income, net of tax $ (1.1) $ (0.8)
The effects of derivative instruments not in Subtopic 815-20:
(Loss) gain on free-standing derivative instruments:
Interest rate swaps:
Loss on change in fair value of free-standing derivative instruments $ (1.1) $ — 
Interest rate contract:
Net gain (loss) on change in fair value of free-standing derivative instruments $ 0.4  $ (2.6)
Fair Value Measurements
In measuring fair values of assets and liabilities, we use valuation techniques that maximize the use of observable inputs (Level 1) and minimize the use of unobservable inputs (Level 3). We also use market data or assumptions that we believe market participants would use in pricing an asset or liability, including assumptions about risk when appropriate.
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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)

The carrying value for certain of our financial instruments, including cash, accounts receivable, current investments, accounts payable and certain other accrued liabilities, approximates fair value because of their short-term nature. As of March 31, 2021 and December 31, 2020, our assets and liabilities that are measured at fair value on a recurring basis include the following:
March 31, 2021
  Fair Value
  Carrying Amount Total Quoted
Prices in
Active
Markets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Assets:
Money market mutual funds $ 32.7  $ 32.7  $ 32.7  $ —  $ — 
Bonds - restricted cash and marketable securities and other assets
70.2  70.2  —  70.2  — 
Interest rate swaps - other assets 8.6  8.6  —  8.6  — 
Other derivative assets - other assets 24.7  24.7  —  24.7  — 
Total assets $ 136.2  $ 136.2  $ 32.7  $ 103.5  $ — 
Liabilities:
Other derivative liabilities - other long-term liabilities $ 60.7  $ 60.7  $ —  $ 60.7  $ — 
Contingent consideration - other accrued liabilities and other long-term liabilities
70.3  70.3  —  —  70.3 
Total liabilities $ 131.0  $ 131.0  $ —  $ 60.7  $ 70.3 
December 31, 2020
  Fair Value
  Carrying Amount Total Quoted
Prices in
Active
Markets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Assets:
Money market mutual funds $ 32.3  $ 32.3  $ 32.3  $ —  $ — 
Bonds - restricted cash and marketable securities and other assets
73.8  73.8  —  73.8  — 
Interest rate swaps - other assets 10.0  10.0  —  10.0  — 
Other derivative assets - other assets 63.8  63.8  —  63.8  — 
Total assets $ 179.9  $ 179.9  $ 32.3  $ 147.6  $ — 
Liabilities:
Other derivative liabilities - other long-term liabilities $ 103.0  $ 103.0  $ —  $ 103.0  $ — 
Contingent consideration - other accrued liabilities and other long-term liabilities 70.6  70.6  —  —  70.6 
Total liabilities $ 173.6  $ 173.6  $ —  $ 103.0  $ 70.6 
Total Debt
As of March 31, 2021 and December 31, 2020, the carrying value of our total debt was $8.8 billion and $8.9 billion, respectively, and the fair value of our total debt was $9.4 billion and $10.0 billion, respectively. The estimated fair value of our fixed rate senior notes and debentures is based on quoted market prices. The fair value of our remaining notes payable, tax-exempt financings and borrowings under our credit facilities approximates the carrying value because the interest rates are variable. The fair value estimates were based on Level 2 inputs of the fair value hierarchy as of March 31, 2021 and December 31, 2020. See Note 7, Debt, for further information related to our debt.
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Contingent Consideration
In 2015, we entered into a waste management contract with the County of Sonoma, California to operate the county's waste management facilities. As of March 31, 2021, the Sonoma contingent consideration represents the fair value of $63.8 million payable to the County of Sonoma based on the achievement of future annual tonnage targets through the expected remaining capacity of the landfill. The potential undiscounted amount of all future contingent payments that we could be required to make under the waste management contract is estimated to be between approximately $80 million and $100 million. During the three months ended March 31, 2021, the activity in the contingent consideration liability included accretion, which was offset by concession payments made in the ordinary course of business. There were no changes to the estimate of fair value.
12. SEGMENT REPORTING
In December 2020, our senior management began evaluating, overseeing and managing the financial performance of our operations through three operating segments. Group 1 primarily consists of geographic areas located in the western United States, and Group 2 primarily consists of geographic areas located in the southeastern and mid-western United States, and the eastern seaboard of the United States. Our environmental solutions operating segment, which provides environmental solutions for daily operations of industrial, petrochemical and refining facilities, is aggregated with Corporate entities and other as it only represents approximately 1% of our consolidated revenue. Each of our operating segments provides integrated environmental services, including collection, transfer, recycling, and disposal.
Summarized financial information concerning our reportable segments for the three months ended March 31, 2021 and 2020 follows:

Gross Revenue Intercompany Revenue Net Revenue Depreciation, Amortization, Depletion and Accretion Operating Income (Loss) Capital Expenditures Total Assets
Three Months Ended March 31, 2021
Group 1 $ 1,548.1  $ (249.0) $ 1,299.1  $ 132.1  $ 351.5  $ 108.1  $ 11,735.1 
Group 2 1,423.8  (201.8) 1,222.0  128.7  261.8  67.7  9,180.7 
Corporate entities and other 85.7  (10.4) 75.3  41.8  (120.9) 155.2  2,336.8 
Total $ 3,057.6  $ (461.2) $ 2,596.4  $ 302.6  $ 492.4  $ 331.0  $ 23,252.6 
Three Months Ended March 31, 2020
Group 1 $ 1,507.5  $ (252.9) $ 1,254.6  $ 128.5  $ 313.6  $ 122.6  $ 11,376.6 
Group 2 1,411.2  (203.1) 1,208.1  125.1  229.3  81.0  8,891.8 
Corporate entities and other 102.8  (11.6) 91.2  35.9  (109.8) 169.5  2,640.5 
Total $ 3,021.5  $ (467.6) $ 2,553.9  $ 289.5  $ 433.1  $ 373.1  $ 22,908.9 
Financial information for the three months ended March 31, 2020 reflects the transfer of our environmental solutions operating segment from Group 2 to Corporate entities and other.
Intercompany revenue reflects transactions within and between segments that generally are made on a basis intended to reflect the market value of such services. Capital expenditures for Corporate entities and other primarily include vehicle inventory acquired but not yet assigned to operating locations and facilities. Corporate functions include legal, tax, treasury, information technology, risk management, human resources, closed landfills, environmental solutions, and other administrative functions.
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13. REVENUE AND CREDIT LOSSES
Our operations primarily consist of providing environmental services. The following table disaggregates our revenue by service line for the three months ended March 31, 2021 and 2020 (in millions of dollars and as a percentage of revenue):
  Three Months Ended March 31,
  2021 2020
Collection:
Residential
$ 593.1  22.8  % $ 568.5  22.3  %
Small-container
810.5  31.2  805.7  31.5 
Large-container
540.1  20.8  552.4  21.6 
Other
14.2  0.5  12.3  0.5 
Total collection
1,957.9  75.3  1,938.9  75.9 
Transfer 331.3  321.9 
Less: intercompany (185.1) (185.6)
Transfer, net
146.2  5.6  136.3  5.3 
Landfill 562.6  558.3 
Less: intercompany (249.3) (252.3)
Landfill, net
313.3  12.1  306.0  12.0 
Environmental solutions 30.0  1.2  46.8  1.8 
Other:
Recycling processing and commodity sales
87.6  3.4  67.8  2.7 
Other non-core
61.4  2.4  58.1  2.3 
Total other
149.0  5.8  125.9  5.0 
Total revenue $ 2,596.4  100.0  % $ 2,553.9  100.0  %
Other non-core revenue consists primarily of revenue from National Accounts, which represents the portion of revenue generated from nationwide or regional contracts in markets outside our operating areas where the associated waste handling is subcontracted to local operators. Consequently, substantially all of this revenue is offset with related subcontract costs, which are recorded in cost of operations.
The factors that impact the timing and amount of revenue recognized for each service line may vary based on the nature of the service performed. Generally, we recognize revenue at the time we perform a service. In the event that we bill for services in advance of performance, we recognize deferred revenue for the amount billed and subsequently recognize revenue at the time the service is provided. Substantially all of the deferred revenue recognized as of December 31, 2020 was recognized as revenue during the three months ended March 31, 2021 when the service was performed.
See Note 12, Segment Reporting, for additional information regarding revenue by reportable segment.
Revenue Recognition
Our service obligations of a long-term nature, e.g., certain collection service contracts, are satisfied over time, and we recognize revenue based on the value provided to the customer during the period. The amount billed to the customer is based on variable elements such as the number of residential homes or businesses for which collection services are provided, the volume of material collected, transported and disposed, and the nature of the material accepted. We do not disclose the value of unsatisfied performance obligations for these contracts as our right to consideration corresponds directly to the value provided to the customer for services completed to date and all future variable consideration is allocated to wholly unsatisfied performance obligations.
Additionally, certain elements of our long-term customer contracts are unknown upon entering into the contract, including the amount that will be billed in accordance with annual price escalation clauses, our fuel recovery fee program and commodity prices. The amount to be billed is often tied to changes in an underlying base index such as a consumer price index or a fuel or commodity index, and revenue can be recognized once the index is established for the period.
Deferred Contract Costs
We incur certain upfront payments to acquire customer contracts which are recognized as other assets in our consolidated balance sheet, and we amortize the asset over the respective contract life. In addition, we recognize sales commissions that
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represent an incremental cost of the contract as other assets in our consolidated balance sheets, and we amortize the asset over the average life of the customer relationship. As of March 31, 2021 and December 31, 2020, we recognized $80.8 million and $82.3 million, respectively, of deferred contract costs and capitalized sales commissions. During the three months ended March 31, 2021 and 2020, we amortized $3.1 million and $3.0 million, respectively, of capitalized sales commissions to selling, general and administrative expenses. During each of the three months ended March 31, 2021 and 2020, we amortized $1.6 million of other deferred contract costs as a reduction of revenue.
Credit Losses
Accounts receivable represent receivables from customers for environmental services, including collection and processing of recyclable materials, collection, transfer, and disposal of solid waste, and other environmental solutions. Our receivables are recorded when billed or when the related revenue is earned and represent claims against third parties that will be settled in cash. The carrying value of our receivables, net of the allowance for doubtful accounts and customer credits, represents their estimated net realizable value.
We establish an allowance for doubtful accounts based on various factors including the age of receivables outstanding, historical trends, economic conditions and other information. We also review outstanding balances on an account-specific basis based on the credit risk of the customer. We determined that all of our accounts receivable share similar risk characteristics. We monitor our credit exposure on an ongoing basis and assess whether assets in the pool continue to display similar risk characteristics. We perform ongoing credit evaluations of our customers, but generally do not require collateral to support customer receivables.
The following table reflects the activity in our allowance for doubtful accounts for the three months ended March 31:
2021 2020
Balance at beginning of year $ 34.7  $ 34.0 
Additions charged to expense 4.3  4.9 
Accounts written-off (3.0) (6.5)
Balance at end of period $ 36.0  $ 32.4 

14. COMMITMENTS AND CONTINGENCIES
Legal Proceedings
We are subject to extensive and evolving laws and regulations and have implemented safeguards to respond to regulatory requirements. In the normal course of our business, we become involved in legal proceedings. Some may result in fines, penalties or judgments against us, or settlements, which may impact earnings and cash flows for a particular period. Although we cannot predict the ultimate outcome of any legal matter with certainty, we do not believe the outcome of any of our pending legal proceedings will have a material adverse impact on our consolidated financial position, results of operations or cash flows.
As used herein, the term legal proceedings refers to litigation and similar claims against us and our subsidiaries, excluding: (1) ordinary course accidents, general commercial liability and workers' compensation claims, which are covered by insurance programs, subject to customary deductibles, and which, together with insured employee health care costs, are discussed in Note 5, Other Liabilities; and (2) environmental remediation liabilities, which are discussed in Note 6, Landfill and Environmental Costs.
We accrue for legal proceedings when losses become probable and reasonably estimable. We have recorded an aggregate accrual of approximately $28 million relating to our outstanding legal proceedings as of March 31, 2021. As of the end of each applicable reporting period, we review each of our legal proceedings and, where it is probable that a liability has been incurred, we accrue for all probable and reasonably estimable losses. Where we can reasonably estimate a range of losses we may incur regarding such a matter, we record an accrual for the amount within the range that constitutes our best estimate. If we can reasonably estimate a range but no amount within the range appears to be a better estimate than any other, we use the amount that is the low end of such range. If we had used the high ends of such ranges, our aggregate potential liability would be approximately $9 million higher than the amount recorded as of March 31, 2021.
Multiemployer Pension Plans
We participate in multiemployer pension plans that generally provide retirement benefits to participants of contributing employers. We do not administer these plans.
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REPUBLIC SERVICES, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS - (CONTINUED)

Under current law regarding multiemployer pension plans, our withdrawal (which we consider from time to time) or the mass withdrawal from any under-funded multiemployer pension plan (each, a Withdrawal Event) could require us to make payments to the plan for our proportionate share of the plan’s unfunded vested liabilities. During the course of operating our business, we incur Withdrawal Events regarding certain of the multiemployer pension plans in which we participate. We accrue for such events when losses become probable and reasonably estimable.
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Restricted cash and restricted cash equivalents are included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. Beginning-of-period and end-of-period cash, cash equivalents, restricted cash and restricted cash equivalents as presented in the statement of cash flows is reconciled as follows:
March 31, 2021 December 31, 2020 March 31, 2020 December 31, 2019
Cash and cash equivalents $ 23.2  $ 38.2  $ 281.6  $ 47.1 
Restricted cash and marketable securities 134.6  149.1  117.7  179.4 
Less: restricted marketable securities (69.5) (73.1) (55.9) (49.1)
Cash, cash equivalents, restricted cash and restricted cash equivalents $ 88.3  $ 114.2  $ 343.4  $ 177.4 
Our restricted cash and marketable securities include, among other things, restricted cash and marketable securities pledged to regulatory agencies and governmental entities as financial guarantees of our performance under certain collection, landfill and transfer station contracts and permits, and relating to our final capping, closure and post-closure obligations at our landfills as well as restricted cash and marketable securities related to our insurance obligations.
The following table summarizes our restricted cash and marketable securities:
March 31, 2021 December 31, 2020
Capping, closure and post-closure obligations $ 31.6  $ 31.5 
Insurance 103.0  117.6 
Total restricted cash and marketable securities $ 134.6  $ 149.1 
Off-Balance Sheet Arrangements
We have no off-balance sheet debt or similar obligations, other than short-term operating leases and financial assurances, which are not classified as debt. We have no transactions or obligations with related parties that are not disclosed, consolidated into or reflected in our reported financial position or results of operations. We have not guaranteed any third-party debt.
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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
You should read the following discussion in conjunction with the unaudited consolidated financial statements and notes thereto included under Part I, Item 1 of this Quarterly Report on Form 10-Q. In addition, you should refer to our audited consolidated financial statements and notes thereto and related Management’s Discussion and Analysis of Financial Condition and Results of Operations appearing in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020.
Disclosure Regarding Forward-Looking Statements
This Quarterly Report on Form 10-Q contains certain forward-looking information about us that is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements that are not historical facts. Words such as “guidance,” “expect,” “will,” “may,” “anticipate,” “plan,” “estimate,” “project,” “intend,” “should,” “can,” “likely,” “could,” “outlook” and similar expressions are intended to identify forward-looking statements. In particular, information appearing in this “Management's Discussion and Analysis of Financial Condition and Results of Operations” includes forward-looking statements. These statements include information about our plans, strategies, expectations of future financial performance and prospects. Forward-looking statements are not guarantees of performance. These statements are based upon the current beliefs and expectations of our management and are subject to significant risk and uncertainties that could cause actual results to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot assure you that the expectations will prove to be correct. Among the factors that could cause actual results to differ materially from the expectations expressed in the forward-looking statements are the effects of the COVID-19 pandemic and actions taken in response thereto, as well as acts of war, riots or terrorism, and the impact of these acts on economic, financial and social conditions in the United States as well as our dependence on large, long-term collection, transfer and disposal contracts. More information on factors that could cause actual results or events to differ materially from those anticipated is included from time to time in our reports filed with the Securities and Exchange Commission, including our Annual Report on Form 10-K for the year ended December 31, 2020, particularly under Part I, Item 1A - Risk Factors. Additionally, new risk factors emerge from time to time and it is not possible for us to predict all such risk factors, or to assess the impact such risk factors might have on our business. We undertake no obligation to update publicly any forward-looking statements whether as a result of new information, future events or otherwise, except as required by law.
Impact of the COVID-19 Pandemic
In March 2020, the World Health Organization declared the outbreak of a new strain of coronavirus (COVID-19) pandemic. The COVID-19 pandemic has negatively impacted the global economy, disrupted global supply chains and created significant volatility and disruption of financial markets. The full extent of the impact of the COVID-19 pandemic on our operations and financial performance will depend on future developments, including the duration and spread of the pandemic, all of which are uncertain and cannot be predicted at this time.
In mid-March 2020, certain customers in our small- and large-container businesses began adjusting their service levels, which included a decrease in the frequency of pickups or a temporary pause in service. In addition, we experienced a decline in volumes disposed at certain of our landfills and transfer stations. As service levels decreased, we also experienced a decrease in certain costs of our operations which are variable in nature. This decline in service activity peaked in the first half of April 2020 and improved sequentially through March 31, 2021.
In April 2020, we launched our Committed to Serve initiative and committed $20 million to support frontline employees and their families, as well as small business customers in the local communities where we serve. In addition to this initiative, we have experienced an increase in certain costs of doing business as a direct result of the COVID-19 pandemic, including costs for additional safety equipment and hygiene products and increased facility and equipment cleaning. These costs are intended to assist in protecting the safety of our frontline employees as we continue to provide an essential service to our customers. In December 2020, we recognized our frontline employees for their commitment and contributions to their communities during the pandemic with a $500 award that was paid in January 2021. In addition, we incurred incremental costs associated with expanding certain aspects of our existing healthcare programs. We expect to incur similar costs throughout 2021, and potentially into future years, although we expect the amount of such costs annually to be less than those incurred in 2020.
The effects of the COVID-19 pandemic on our business are described in more detail in the Results of Operations discussion in this Management's Discussion and Analysis of Financial Condition and Results of Operations.
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Recent Developments
Updated Full-Year 2021 Adjusted Earnings Per Share Guidance
The following is a summary of anticipated adjusted diluted earnings per share for the year ending December 31, 2021. Adjusted diluted earnings per share is not a measure determined in accordance with U.S. GAAP:
(Anticipated)
Year Ending
December 31, 2021
Diluted earnings per share $ 3.65 to 3.69
Restructuring charges 0.03 to 0.04
Accelerated vesting of compensation expense for CEO transition 0.06 
Adjusted diluted earnings per share $ 3.74 to 3.79
We believe that presenting adjusted diluted earnings per share provides an understanding of operational activities before the financial impact of certain items. We use this measure, and believe investors will find it helpful, in understanding the ongoing performance of our operations separate from items that have a disproportionate impact on our results for a particular period. We have incurred comparable charges, costs and recoveries in prior periods, and similar types of adjustments can reasonably be expected to be recorded in future periods. Our definition of adjusted diluted earnings per share may not be comparable to similarly titled measures presented by other companies.
Overview
Republic is one of the largest providers of environmental services in the United States, as measured by revenue. As of March 31, 2021, we operated facilities in 41 states through 347 collection operations, 222 transfer stations, 186 active landfills, 73 recycling processing centers, 6 treatment, recovery and disposal facilities, 6 salt water disposal wells and 7 deep injection wells. We are engaged in 75 landfill gas to energy and renewable energy projects and had post-closure responsibility for 128 closed landfills as of March 31, 2021.
Revenue for the three months ended March 31, 2021 increased by 1.7% to $2,596.4 million compared to $2,553.9 million for the same period in 2020. This change in revenue is due to increases in average yield of 2.3%, acquisitions, net of divestitures of 1.0%, and recycling processing and commodity sales of 0.8%, partially offset by decreased volumes of 0.8%, environmental solutions revenue of 0.7%, and fuel recovery fees of 0.4%. Additionally, revenue decreased 0.5% due to the impact of one less workday during the three months ended March 31, 2021 as compared to the same period in 2020.
The following table summarizes our revenue, expenses and operating income for the three months ended March 31, 2021 and 2020 (in millions of dollars and as a percentage of revenue):
Three Months Ended March 31,
2021 2020
Revenue $ 2,596.4  100.0  % $ 2,553.9  100.0  %
Expenses:
Cost of operations 1,534.3  59.1  1,550.0  60.7 
Depreciation, amortization and depletion of property and equipment 264.8  10.2  253.8  9.9 
Amortization of other intangible assets 7.3  0.3  5.3  0.2 
Amortization of other assets 10.0  0.4  9.5  0.4 
Accretion 20.5  0.8  20.9  0.8 
Selling, general and administrative 265.4  10.2  277.1  10.9 
Withdrawal costs - multiemployer pension funds
—  —  4.3  0.2 
Gain on business divestitures and impairments, net (1.1) —  (3.9) (0.2)
Restructuring charges 2.8  0.1  3.8  0.1 
Operating income $ 492.4  18.9  % $ 433.1  17.0  %
Our pre-tax income was $400.1 million for the three months ended March 31, 2021 compared to $322.6 million for the same respective period in 2020. Our net income attributable to Republic Services, Inc. was $295.9 million for the three months ended March 31, 2021, or $0.93 per diluted share, compared to $246.3 million, or $0.77 per diluted share, for the same period in 2020.
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During each of the three months ended March 31, 2021 and 2020, we recorded a number of charges, other expenses and benefits that impacted our pre-tax income, net income attributable to Republic Services, Inc. (net income – Republic) and diluted earnings per share as noted in the following table (in millions, except per share data). Additionally, see our Results of Operations discussion in this Management's Discussion and Analysis of Financial Condition and Results of Operations for a discussion of other items that impacted our earnings during the three months ended March 31, 2021 and 2020.

Three Months Ended March 31, 2021
Three Months Ended March 31, 2020
Net Diluted Net Diluted
Pre-tax Income - Earnings Pre-tax Income - Earnings
Income Republic per Share Income Republic per Share
As reported $ 400.1  $ 295.9  $ 0.93  $ 322.6  $ 246.3  $ 0.77 
Restructuring charges(1)
2.8  2.1  —  3.8  2.8  0.01 
Gain on business divestitures and impairments, net(1)
(1.1) (0.8) —  (3.9) (2.9) (0.01)
Withdrawal costs - multiemployer pension funds —  —  —  4.3  3.1  0.01 
Bridgeton insurance recovery —  —