10-Q

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 1-34370

WASTE CONNECTIONS, INC.

(Exact name of registrant as specified in its charter)

Ontario, Canada

(State or other jurisdiction of incorporation or organization)

98-1202763

(I.R.S. Employer Identification No.)

6220 Hwy 7, Suite 600

Woodbridge

Ontario L4H 4G3

Canada

(Address of principal executive offices)

(905) 532-7510

(Registrant’s telephone number, including area code)

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 Shares, no par value	WCN	New York Stock Exchange (“NYSE”) Toronto Stock Exchange (“TSX”)

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 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, a 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. (Check one):

þ Large Accelerated
Filer ◻ Accelerated
Filer ◻ Non-accelerated
Filer ☐ Smaller Reporting
Company ☐ 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

Indicate the number of shares outstanding of each of the issuer’s classes of common shares:

As of April 16, 2021: 261,684,677 common shares

WASTE CONNECTIONS, INC.

FORM 10-Q

TABLE OF CONTENTS

		Page
PART I – FINANCIAL INFORMATION (unaudited)
Item 1.	Financial Statements
	Condensed Consolidated Balance Sheets	1
	Condensed Consolidated Statements of Net Income	2
	Condensed Consolidated Statements of Comprehensive Income (Loss)	3
	Condensed Consolidated Statements of Equity	4
	Condensed Consolidated Statements of Cash Flows	6
	Notes to Condensed Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	29
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	50
Item 4.	Controls and Procedures	52
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings	53
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	53
Item 6.	Exhibits	54
Signatures		55

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

WASTE CONNECTIONS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

(In thousands of U.S. dollars, except share and per share amounts)

	March 31,		December 31,
	2021		2020
ASSETS
Current assets:
Cash and equivalents	$	743,464	$	617,294
Accounts receivable, net of allowance for credit losses of $18,970 and $19,380 at March 31, 2021 and December 31, 2020, respectively		608,758		630,264
Prepaid expenses and other current assets		151,769		160,714
Total current assets		1,503,991		1,408,272
Restricted cash		105,689		97,095
Restricted investments		56,620		57,516
Property and equipment, net		5,232,682		5,284,506
Operating lease right-of-use assets		174,635		170,923
Goodwill		5,754,101		5,726,650
Intangible assets, net		1,125,894		1,155,079
Other assets, net		89,317		92,323
Total assets	$	14,042,929	$	13,992,364
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable	$	280,025	$	290,820
Book overdraft		234		17,079
Deferred revenue		243,712		233,596
Accrued liabilities		399,470		404,923
Current portion of operating lease liabilities		35,699		30,671
Current portion of contingent consideration		42,360		43,297
Current portion of long-term debt and notes payable		105,386		8,268
Total current liabilities		1,106,886		1,028,654
Long-term portion of debt and notes payable		4,613,602		4,708,678
Long-term portion of operating lease liabilities		146,018		147,223
Long-term portion of contingent consideration		24,618		28,439
Deferred income taxes		776,498		760,044
Other long-term liabilities		433,434		455,888
Total liabilities		7,101,056		7,128,926
Commitments and contingencies (Note 17)
Equity:
Common shares: 262,564,371 shares issued and 262,491,505 shares outstanding at March 31, 2021; 262,899,174 shares issued and 262,824,990 shares outstanding at December 31, 2020		3,964,500		4,030,368
Additional paid-in capital		161,638		170,555
Accumulated other comprehensive income (loss)		46,171		(651)
Treasury shares: 72,866 and 74,184 shares at March 31, 2021 and December 31, 2020, respectively		—		—
Retained earnings		2,765,401		2,659,001
Total Waste Connections’ equity		6,937,710		6,859,273
Noncontrolling interest in subsidiaries		4,163		4,165
Total equity		6,941,873		6,863,438
	$	14,042,929	$	13,992,364

The accompanying notes are an integral part of these condensed consolidated financial statements.

1

WASTE CONNECTIONS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF NET INCOME

(Unaudited)

(In thousands of U.S. dollars, except share and per share amounts)

	Three Months Ended March 31,
	2021		2020
Revenues	$	1,395,942	$	1,352,404
Operating expenses:
Cost of operations		825,920		815,424
Selling, general and administrative		141,422		136,052
Depreciation		157,402		150,821
Amortization of intangibles		32,192		31,638
Impairments and other operating items		634		1,506
Operating income		238,372		216,963
Interest expense		(42,425)		(37,990)
Interest income		1,103		2,175
Other income (expense), net		3,548		(9,521)
Income before income tax provision		200,598		171,627
Income tax provision		(40,291)		(28,734)
Net income		160,307		142,893
Plus: Net loss attributable to noncontrolling interests		2		142
Net income attributable to Waste Connections	$	160,309	$	143,035
Earnings per common share attributable to Waste Connections’ common shareholders:
Basic	$	0.61	$	0.54
Diluted	$	0.61	$	0.54
Shares used in the per share calculations:
Basic		262,697,487		263,790,364
Diluted		263,156,655		264,353,158
Cash dividends per common share	$	0.205	$	0.185

The accompanying notes are an integral part of these condensed consolidated financial statements.

2

WASTE CONNECTIONS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(Unaudited)

(In thousands of U.S. dollars)

	Three Months Ended March 31,
	2021		2020
Net income	$	160,307	$	142,893
Other comprehensive income (loss), before tax:
Interest rate swap amounts reclassified into interest expense		4,796		(440)
Changes in fair value of interest rate swaps		20,739		(58,026)
Foreign currency translation adjustment		28,054		(184,717)
Other comprehensive income (loss), before tax		53,589		(243,183)
Income tax (expense) benefit related to items of other comprehensive income (loss)		(6,767)		15,494
Other comprehensive income (loss), net of tax		46,822		(227,689)
Comprehensive income (loss)		207,129		(84,796)
Plus: Comprehensive loss attributable to noncontrolling interests		2		142
Comprehensive income (loss) attributable to Waste Connections	$	207,131	$	(84,654)

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

WASTE CONNECTIONS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited)

(In thousands of U.S. dollars, except share amounts)

	WASTE CONNECTIONS' EQUITY
						ACCUMULATED
				ADDITIONAL		OTHER
	COMMON SHARES			PAID-IN		COMPREHENSIVE		TREASURY SHARES			RETAINED		NONCONTROLLING
	SHARES	AMOUNT		CAPITAL		LOSS		SHARES	AMOUNT		EARNINGS		INTERESTS		TOTAL
Balances at December 31, 2020	262,824,990	$	4,030,368	$	170,555	$	(651)	74,184	$	—	$	2,659,001	$	4,165	$	6,863,438
Sale of common shares held in trust	1,318		131		—		—	(1,318)		—		—		—		131
Vesting of restricted share units	340,529		—		—		—	—		—		—		—		—
Vesting of performance-based restricted share units	154,251		—		—		—	—		—		—		—		—
Restricted share units released from deferred compensation plan	19,150		—		—		—	—		—		—		—		—
Tax withholdings related to net share settlements of equity-based compensation	(186,039)		—		(18,490)		—	—		—		—		—		(18,490)
Equity-based compensation	—		—		9,573		—	—		—		—		—		9,573
Exercise of warrants	3,490		—		—		—	—		—		—		—		—
Repurchase of common shares	(666,184)		(65,999)		—		—	—		—		—		—		(65,999)
Cash dividends on common shares	—		—		—		—	—		—		(53,909)		—		(53,909)
Amounts reclassified into earnings, net of taxes	—		—		—		3,525	—		—		—		—		3,525
Changes in fair value of cash flow hedges, net of taxes	—		—		—		15,243	—		—		—		—		15,243
Foreign currency translation adjustment	—		—		—		28,054	—		—		—		—		28,054
Net income (loss)	—		—		—		—	—		—		160,309		(2)		160,307
Balances at March 31, 2021	262,491,505	$	3,964,500	$	161,638	$	46,171	72,866	$	—	$	2,765,401	$	4,163	$	6,941,873

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

WASTE CONNECTIONS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited)

(In thousands of U.S. dollars, except share amounts)

	WASTE CONNECTIONS' EQUITY
						ACCUMULATED
				ADDITIONAL		OTHER
	COMMON SHARES			PAID-IN		COMPREHENSIVE		TREASURY SHARES			RETAINED		NONCONTROLLING
	SHARES	AMOUNT		CAPITAL		INCOME (LOSS)		SHARES	AMOUNT		EARNINGS		INTERESTS		TOTAL
Balances at December 31, 2019	263,618,161	$	4,135,343	$	154,917	$	(10,963)	81,514	$	—	$	2,654,207	$	4,850	$	6,938,354
Sale of common shares held in trust	7,330		679		—		—	(7,330)		—		—		—		679
Vesting of restricted share units	366,603		—		—		—	—		—		—		—		—
Vesting of performance-based restricted share units	281,186		—		—		—	—		—		—		—		—
Restricted share units released from deferred compensation plan	20,229		—		—		—	—		—		—		—		—
Fair value adjustment for common shares in deferred compensation plan exchanged for other investment options	—		—		(533)		—	—		—		—		—		(533)
Tax withholdings related to net share settlements of equity-based compensation	(226,766)		—		(23,090)		—	—		—		—		—		(23,090)
Equity-based compensation	—		—		10,144		—	—		—		—		—		10,144
Exercise of warrants	9,751		—		—		—	—		—		—		—		—
Repurchase of common shares	(1,271,977)		(105,654)		—		—	—		—		—		—		(105,654)
Cash dividends on common shares	—		—		—		—	—		—		(48,018)		—		(48,018)
Amounts reclassified into earnings, net of taxes	—		—		—		(323)	—		—		—		—		(323)
Changes in fair value of cash flow hedges, net of taxes	—		—		—		(42,649)	—		—		—		—		(42,649)
Foreign currency translation adjustment	—		—		—		(184,717)	—		—		—		—		(184,717)
Net income (loss)	—		—		—		—	—		—		143,035		(142)		142,893
Balances at March 31, 2020	262,804,517	$	4,030,368	$	141,438	$	(238,652)	74,184	$	—	$	2,749,224	$	4,708	$	6,687,086

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

WASTE CONNECTIONS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

(In thousands of U.S. dollars)

	Three Months Ended March 31,
	2021		2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	160,307	$	142,893
Adjustments to reconcile net income to net cash provided by operating activities:
Loss on disposal of assets and impairments		401		135
Depreciation		157,402		150,821
Amortization of intangibles		32,192		31,638
Deferred income taxes, net of acquisitions		8,379		23,259
Amortization of debt issuance costs		1,359		3,420
Share-based compensation		10,307		13,046
Interest accretion		4,204		4,352
Payment of contingent consideration recorded in earnings		(520)		—
Adjustments to contingent consideration		89		—
Other		(796)		2,308
Net change in operating assets and liabilities, net of acquisitions		27,072		(2,286)
Net cash provided by operating activities		400,396		369,586
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments for acquisitions, net of cash acquired		(8,545)		(5,943)
Capital expenditures for property and equipment		(96,793)		(137,781)
Proceeds from disposal of assets		2,080		3,499
Other		2,705		6,599
Net cash used in investing activities		(100,553)		(133,626)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt		—		1,790,625
Principal payments on notes payable and long-term debt		(5,559)		(970,393)
Payment of contingent consideration recorded at acquisition date		(4,807)		(1,976)
Change in book overdraft		(16,849)		(3,848)
Payments for repurchase of common shares		(65,999)		(105,654)
Payments for cash dividends		(53,909)		(48,018)
Tax withholdings related to net share settlements of equity-based compensation		(18,490)		(23,090)
Debt issuance costs		—		(10,936)
Proceeds from sale of common shares held in trust		131		679
Net cash provided by (used in) financing activities		(165,482)		627,389
Effect of exchange rate changes on cash, cash equivalents and restricted cash		403		(2,364)
Net increase in cash, cash equivalents and restricted cash		134,764		860,985
Cash, cash equivalents and restricted cash at beginning of period		714,389		423,221
Cash, cash equivalents and restricted cash at end of period	$	849,153	$	1,284,206

The accompanying notes are an integral part of these condensed consolidated financial statements.

6

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

1.BASIS OF PRESENTATION AND SUMMARY

The accompanying condensed consolidated financial statements relate to Waste Connections, Inc. and its subsidiaries (the “Company”) for the three month periods ended March 31, 2021 and 2020. In the opinion of management, the accompanying balance sheets and related interim statements of net income, comprehensive income (loss), cash flows and equity include all adjustments, consisting only of normal recurring items, necessary for their fair statement in conformity with U.S. generally accepted accounting principles (“GAAP”). Preparing financial statements requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. Examples include accounting for landfills, self-insurance accruals, income taxes, allocation of acquisition purchase price, contingent consideration accruals and asset impairments. An additional area that involves estimation is when the Company estimates the amount of potential exposure it may have with respect to litigation, claims and assessments in accordance with the accounting guidance on contingencies. Actual results for all estimates could differ materially from the estimates and assumptions that the Company uses in the preparation of its condensed consolidated financial statements.

The challenges posed by the pandemic of coronavirus disease 2019 (“COVID-19”) on the global economy persisted through the first quarter of 2021 and continue to impact the demand for the Company’s services to varying degrees and in varying ways across the U.S. and Canada and across a variety of lines of business, including commercial collection and solid waste and non-hazardous oil and natural gas exploration and production (“E&P”) waste treatment, recovery and disposal services.  In response to the COVID-19 pandemic, national and local governments around the world have instituted certain measures, including travel bans, prohibitions on group events and gatherings, shutdowns of certain businesses, curfews, shelter-in-place orders and recommendations to practice social distancing.  In some markets where a portion of these measures have been curtailed, the impact on demand for the Company’s services has decreased as activity levels have increased. The impact of the COVID-19 pandemic on the Company’s business, results of operations, financial condition and cash flows in future periods will depend largely on future developments, including the duration and spread of the outbreak in the U.S. and Canada, the rate of vaccinations, the severity of COVID-19 variants, the actions to contain such coronavirus variants, and how quickly and to what extent normal economic and operating conditions can resume, all of which are uncertain and cannot be predicted at this time.

Interim results are not necessarily indicative of results for a full year. These interim financial statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020.

2.REPORTING CURRENCY

The functional currency of the Company, as the parent corporate entity, and its operating subsidiaries in the United States, is the U.S. dollar. The functional currency of the Company’s Canadian operations is the Canadian dollar. The reporting currency of the Company is the U.S. dollar. The Company’s consolidated Canadian dollar financial position is translated to U.S. dollars by applying the foreign currency exchange rate in effect at the consolidated balance sheet date. The Company’s consolidated Canadian dollar results of operations and cash flows are translated to U.S. dollars by applying the average foreign currency exchange rate in effect during the reporting period. The resulting translation adjustments are included in other comprehensive income or loss. Gains and losses from foreign currency transactions are included in earnings for the period.

7

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

3.NEW ACCOUNTING STANDARDS

Accounting Standards Adopted

Income Taxes – Simplifying the Accounting for Income Taxes.  In December 2019, the Financial Accounting Standards Board (“FASB”) issued guidance that simplifies the accounting for income taxes as part of its overall initiative to reduce complexity in applying accounting standards while maintaining or improving the usefulness of the information provided to users of financial statements.  The amendments include removal of certain exceptions to the general principles of income taxes, and simplification in several other areas such as accounting for a franchise tax that is partially based on income. The standard is effective for public business entities that are U.S. Securities and Exchange Commission (“SEC”) filers for annual periods beginning after December 15, 2020, and interim periods within those reporting periods. The Company adopted the new standard as of January 1, 2021.  The adoption of this new standard did not have a material impact on the Company’s consolidated financial statements.

Accounting Standards Pending Adoption

Reference Rate Reform – Facilitation of the Effects of Reference Rate Reform on Financial Reporting.  In March 2020, the FASB issued guidance to provide temporary optional expedients and exceptions to the guidance in GAAP on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (“LIBOR”) and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate (“SOFR”).  One-week and two-month U.S. dollar LIBOR settings as well as all non-U.S. dollar LIBOR settings will stop being published on December 31, 2021, while the remaining U.S. dollar LIBOR settings will be discontinued on June 30, 2023.  Under the new guidance, entities can elect not to apply certain modification accounting requirements to contracts affected by reference rate reform, if certain criteria are met.  An entity that makes this election would not have to remeasure the contracts at the modification date or reassess a previous accounting determination.  Under the guidance, entities can also elect various optional expedients that would allow them to continue applying hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met.

The guidance is effective upon issuance.  The guidance on contract modifications is applied prospectively from March 12, 2020.  It may also be applied to modifications of existing contracts made earlier in the interim period that includes the effective date.  The guidance on hedging is applied to eligible hedging relationships existing as of the beginning of the interim period that includes the effective date and to new eligible hedging relationships entered into after the beginning of that interim period.  The relief is temporary and generally cannot be applied to contract modifications that occur after December 31, 2022 or hedging relationships entered into or evaluated after that date.  However, certain optional expedients can be applied to hedging relationships evaluated in periods after December 31, 2022.  The Company is currently assessing the potential impact of implementing this new guidance on its consolidated financial statements.  To the extent that the transition away from the use of LIBOR might affect the Company’s ability to maintain cash ‎flow hedge accounting as described in Note 11, the relief is expected to permit the Company to maintain that cash flow ‎hedge accounting.

SEC amends MD&A and other Regulation S-K disclosure requirements.  In November 2020, the SEC adopted amendments to Regulation S-K to eliminate certain disclosure requirements and to revise several others to make the disclosures provided in management’s discussion and analysis more useful for investors.  Key changes included: (1) enhancements and clarification of the disclosure requirements for liquidity and capital resources; (2) elimination of five years of Selected Financial Data; (3) replacement of the current requirement for two years of quarterly tabular disclosure with a principles-based requirement to provide information only when there are material retrospective changes; (4) codification of prior SEC guidance on critical accounting estimates; (5) elimination of the tabular disclosure of contractual obligations; and (6) conforming amendments for foreign private issuers. The amended rules were posted to the Federal

8

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

Register on January 11, 2021 and became effective February 10, 2021.  Registrants are required to comply with the new rules beginning with the first fiscal year ending on or after August 9, 2021.  Registrants may early adopt the amended rules at any time after the effective date (on an item-by-item basis), as long as they provide the disclosure responsive to an amended item in its entirety.

4.RECLASSIFICATION

As disclosed within Note 10 to the financial statements, segment information reported in the Company’s prior year has been reclassified to conform to the 2021 presentation.

5.REVENUE

The Company’s operations primarily consist of providing non-hazardous waste collection, transfer, disposal and recycling services, E&P services, and intermodal services. The following table disaggregates the Company’s revenues by service line for the periods indicated:

		Three Months Ended March 31,
	2021		2020
Commercial	$	426,395	$	416,507
Residential		400,819		365,731
Industrial and construction roll off		209,258		206,771
Total collection		1,036,472		989,009
Landfill		271,936		266,218
Transfer		189,323		180,765
Recycling		32,448		18,108
E&P		28,012		65,377
Intermodal and other		35,634		30,018
Intercompany		(197,883)		(197,091)
Total	$	1,395,942	$	1,352,404

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, the Company recognizes revenue at the time it performs a service. In the event that the Company bills for services in advance of performance, it recognizes deferred revenue for the amount billed and subsequently recognizes revenue at the time the service is provided.  Substantially all of the deferred revenue recorded as of December 31, 2020 was recognized as revenue during the three months ended March 31, 2021 when the service was performed.

See Note 10 for additional information regarding revenue by reportable segment.

Contract Acquisition Costs

The incremental direct costs of obtaining a contract, which consist of sales incentives, are recognized as Other assets in the Company’s Condensed Consolidated Balance Sheet, and are amortized to Selling, general and administrative expense over the estimated life of the relevant customer relationship, which ranges from one to five years. The Company recognizes the incremental costs of obtaining a contract as an expense when incurred if the amortization period of the asset that the entity would have recognized is one year or less.  The Company had $18,954 and $19,669 of deferred sales incentives at March 31, 2021 and December 31, 2020, respectively.

9

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

6.ACCOUNTS RECEIVABLE

Accounts receivable are recorded when billed or accrued and represent claims against third parties that will be settled in cash. The carrying value of the Company’s receivables, net of the allowance for credit losses, represents their estimated net realizable value.

The allowance for credit losses is based on management’s assessment of the collectability of assets pooled together with similar risk characteristics.  The Company monitors the collectability of its trade receivables as one overall pool due to all trade receivables having similar risk characteristics.  The Company estimates its allowance for credit losses based on historical collection trends, the age of outstanding receivables, geographical location of the customer, existing economic conditions and reasonable forecasts. If events or changes in circumstances indicate that specific receivable balances may be impaired, further consideration is given to the collectability of those balances and the allowance is adjusted accordingly. Past-due receivable balances are written off when the Company’s internal collection efforts have been unsuccessful in collecting the amount due.

	Three Months Ended March 31,
	2021		2020
Beginning balance	$	19,380	$	16,432
Current period provision for expected credit losses		1,915		2,027
Write-offs charged against the allowance		(3,501)		(5,063)
Recoveries collected		1,153		1,932
Impact of changes in foreign currency		23		(156)
Ending balance	$	18,970	$	15,172

7.LANDFILL ACCOUNTING

At March 31, 2021, the Company’s landfills consisted of 82 owned landfills, five landfills operated under life-of-site operating agreements, four landfills operated under limited-term operating agreements and one development stage landfill. The Company’s landfills had site costs with a net book value of $2,625,877 at March 31, 2021. For the Company’s landfills operated under limited-term operating agreements and life-of-site operating agreements, the owner of the property (generally a municipality) usually owns the permit and the Company operates the landfill for a contracted term. Where the contracted term is not the life of the landfill, the property owner is generally responsible for final capping, closure and post-closure obligations. The Company is responsible for all final capping, closure and post-closure liabilities at the landfills it operates under life-of-site operating agreements.

The Company’s internal and third-party engineers perform surveys at least annually to estimate the remaining disposal capacity at its landfills. Many of the Company’s existing landfills have the potential for expanded disposal capacity beyond the amount currently permitted. The Company’s landfill depletion rates are based on the remaining disposal capacity, considering both permitted and probable expansion airspace, at the landfills it owns and landfills it operates, but does not own, under life-of-site agreements. The Company’s landfill depletion rate is based on the term of the operating agreement at its operated landfill that has capitalized expenditures. Expansion airspace consists of additional disposal capacity being pursued through means of an expansion that has not yet been permitted. Expansion airspace that meets certain criteria is included in the estimate of total landfill airspace.

10

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

Based on remaining permitted capacity as of March 31, 2021, and projected annual disposal volumes, the average remaining landfill life for the Company’s owned landfills and landfills operated under life-of-site operating agreements is estimated to be approximately 28 years. As of March 31, 2021, the Company is seeking to expand permitted capacity at nine of its owned landfills and three landfills that it operates under life-of-site operating agreements, and considers the achievement of these expansions to be probable. Although the Company cannot be certain that all future expansions will be permitted as designed, the average remaining life, when considering remaining permitted capacity, probable expansion capacity and projected annual disposal volume, of the Company’s owned landfills and landfills operated under life-of-site operating agreements is approximately 31 years.  The estimated remaining lives of the Company’s owned landfills and landfills operated under life-of-site operating agreements range from 1 to 283 years, with approximately 90% of the projected annual disposal volume from landfills with remaining lives of less than 70 years.

During the three months ended March 31, 2021 and 2020, the Company expensed $46,137 and $48,737, respectively, or an average of $4.53 and $4.49 per ton consumed, respectively, related to landfill depletion at owned landfills and landfills operated under life-of-site agreements.

The Company reserves for estimated final capping, closure and post-closure maintenance obligations at the landfills it owns and landfills it operates under life-of-site operating agreements. The Company calculates the net present value of its final capping, closure and post-closure liabilities by estimating the total obligation in current dollars, inflating the obligation based upon the expected date of the expenditure and discounting the inflated total to its present value using a credit-adjusted risk-free rate. Any changes in expectations that result in an upward revision to the estimated undiscounted cash flows are treated as a new liability and are inflated and discounted at rates reflecting current market conditions. Any changes in expectations that result in a downward revision (or no revision) to the estimated undiscounted cash flows result in a liability that is inflated and discounted at rates reflecting the market conditions at the time the cash flows were originally estimated. This policy results in the Company’s final capping, closure and post-closure liabilities being recorded in “layers.”  The Company’s discount rate assumption for purposes of computing 2021 and 2020 “layers” for final capping, closure and post-closure obligations was 3.25% and 4.75%, respectively,  which reflects the Company’s long-term credit adjusted risk free rate as of the end of 2020 and 2019. The Company’s inflation rate assumption is 2.25% and 2.50% for the years ending December 31, 2021 and 2020, respectively. The resulting final capping, closure and post-closure obligations are recorded on the Condensed Consolidated Balance Sheet along with an offsetting addition to site costs which is amortized to depletion expense as the remaining landfill airspace is consumed. Interest is accreted on the recorded liability using the corresponding discount rate. During the three months ended March 31, 2021 and 2020, the Company expensed $3,655 and $3,849, respectively, or an average of $0.36 and $0.36 per ton consumed, respectively, related to final capping, closure and post-closure accretion expense.

The following is a reconciliation of the Company’s final capping, closure and post-closure liability balance from December 31, 2020 to March 31, 2021:

Final capping, closure and post-closure liability at December 31, 2020	$	301,896
Liability adjustments		(7,134)
Accretion expense associated with landfill obligations		3,655
Closure payments		(3,237)
Foreign currency translation adjustment		562
Final capping, closure and post-closure liability at March 31, 2021	$	295,742

Liability adjustments of $7,134 for the three months ended March 31, 2021, represent non-cash changes to final capping, closure and post-closure liabilities and are recorded on the Condensed Consolidated Balance Sheets along with an offsetting addition to site costs, which is amortized to depletion expense as the remaining landfill airspace is consumed. The final capping, closure and post-closure liability is included in Other long-term liabilities in the Condensed

11

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

Consolidated Balance Sheets.  The Company performs its annual review of its cost and capacity estimates in the first quarter of each year.

At March 31, 2021 and December 31, 2020, $14,134 and $12,533, respectively, of the Company’s restricted cash balance and $53,924 and $54,833, respectively, of the Company’s restricted investments balance was for purposes of securing its performance of future final capping, closure and post-closure obligations.

8.INTANGIBLE ASSETS, NET

Intangible assets, exclusive of goodwill, consisted of the following at March 31, 2021:

	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	601,120	$	(245,880)	$	—	$	355,240
Customer lists		638,674		(400,314)		—		238,360
Permits and other		379,785		(83,178)		—		296,607
		1,619,579		(729,372)		—		890,207
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		172,056		—		—		172,056
Material recycling facility permits		42,283		—		—		42,283
E&P facility permits		59,855		—		(38,507)		21,348
		274,194		—		(38,507)		235,687
Intangible assets, exclusive of goodwill	$	1,893,773	$	(729,372)	$	(38,507)	$	1,125,894

Intangible assets, exclusive of goodwill, consisted of the following at December 31, 2020:

	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	600,674	$	(234,972)	$	—	$	365,702
Customer lists		636,035		(382,020)		—		254,015
Permits and other		378,952		(79,277)		—		299,675
		1,615,661		(696,269)		—		919,392
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		172,056		—		—		172,056
Material recycling facility permits		42,283		—		—		42,283
E&P facility permits		59,855		—		(38,507)		21,348
		274,194		—		(38,507)		235,687
Intangible assets, exclusive of goodwill	$	1,889,855	$	(696,269)	$	(38,507)	$	1,155,079

12

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

Estimated future amortization expense for the next five years relating to finite-lived intangible assets is as follows:

For the year ending December 31, 2021	$	126,891
For the year ending December 31, 2022	$	108,169
For the year ending December 31, 2023	$	92,115
For the year ending December 31, 2024	$	79,163
For the year ending December 31, 2025	$	66,880

9.LONG-TERM DEBT

The following table presents the Company’s long-term debt as of March 31, 2021 and December 31, 2020:

	March 31,		December 31,
	2021		2020
Revolver under Credit Agreement, bearing interest ranging from 1.31% to 1.61% (a)	$	203,976	$	203,927
Term loan under Credit Agreement, bearing interest at 1.31% (a)		650,000		650,000
4.64% Senior Notes due 2021 (b)		100,000		100,000
2.39% Senior Notes due 2021 (c)		150,000		150,000
3.09% Senior Notes due 2022		125,000		125,000
2.75% Senior Notes due 2023		200,000		200,000
3.24% Senior Notes due 2024		150,000		150,000
3.41% Senior Notes due 2025		375,000		375,000
3.03% Senior Notes due 2026		400,000		400,000
3.49% Senior Notes due 2027		250,000		250,000
4.25% Senior Notes due 2028		500,000		500,000
3.50% Senior Notes due 2029		500,000		500,000
2.60% Senior Notes due 2030		600,000		600,000
3.05% Senior Notes due 2050		500,000		500,000
Notes payable to sellers and other third parties, bearing interest ranging from 2.42% to 10.35%, principal and interest payments due periodically with due dates ranging from 2028 to 2036 (a)		38,008		43,131
Finance leases, bearing interest at 1.89% with a lease expiration date of 2026 (a)		9,822		3,754
		4,751,806		4,750,812
Less – current portion		(105,386)		(8,268)
Less – unamortized debt discount and issuance costs		(32,818)		(33,866)
	$	4,613,602	$	4,708,678

____________________

(a) Interest rates represent the interest rates in effect at March 31, 2021.

(b) The Company redeemed the 4.64% Senior Notes due 2021 (the “2021 Senior Notes”) on April 1, 2021.

(c) The Company has recorded the 2.39% Senior Notes due 2021 (the “New 2021 Senior Notes”) in long-term debt in the table above as the Company has the intent and ability to redeem the New 2021 Senior Notes on June 1, 2021 using borrowings under the Credit Agreement.

13

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

Credit Agreement

Details of the Credit Agreement are as follows:

	March 31,			December 31,
	2021			2020
Revolver under Credit Agreement
Available	$	1,240,137		$	1,238,937
Letters of credit outstanding	$	118,387		$	119,636
Total amount drawn, as follows:	$	203,976		$	203,927
Amount drawn - U.S. LIBOR rate loan	$	200,000		$	200,000
Interest rate applicable - U.S. LIBOR rate loan		1.31	%		1.35	%
Amount drawn – Canadian bankers’ acceptance	$	3,976		$	3,927
Interest rate applicable – Canadian bankers’ acceptance		1.61	%		1.66	%
Commitment – rate applicable		0.15	%		0.15	%
Term loan under Credit Agreement
Amount drawn – U.S. based LIBOR loan	$	650,000		$	650,000
Interest rate applicable – U.S. based LIBOR loan		1.31	%		1.35	%

In addition to the $118,387 of letters of credit at March 31, 2021 issued under the Credit Agreement, the Company has issued letters of credit totaling $6,796 under facilities other than the Credit Agreement.

10.SEGMENT REPORTING

The Company’s revenues are generated from the collection, transfer, recycling and disposal of non-hazardous solid waste and the treatment, recovery and disposal of non-hazardous E&P waste. No single contract or customer accounted for more than 10% of the Company’s total revenues at the consolidated or reportable segment level during the periods presented.

Prior to July 2020, the Company managed its operations through five geographic solid waste operating segments and its E&P segment, which were also its reportable segments. As of July 2020, the Company’s Chief Operating Decision Maker determined that the Company’s E&P and Southern operating segments met all the aggregation criteria and eliminated the E&P segment by combining all operations of the E&P segment into the Southern segment. After giving effect to this combination, the Company’s reportable segments consist of its five geographic operating segments and no longer include a separate E&P segment. Each operating segment is responsible for managing several vertically integrated operations, which are comprised of districts.  The segment information presented herein reflects the realignment of these districts.  Segment results for the 2020 periods reflected in this report have been reclassified to reflect the realignment of the Company’s reportable segments for comparison with the same period in 2021.

Under the current orientation, the Company’s Southern segment services customers located in Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, New Mexico, North Dakota, southern Oklahoma, western Tennessee, Texas, Wyoming and along the Gulf of Mexico; the Company’s Eastern segment services customers located in Delaware, northern Illinois, Kentucky, Maryland, Massachusetts, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, South Carolina, eastern Tennessee, Vermont, Virginia and Wisconsin; the Company’s Western segment services customers located in Alaska, California, Idaho, Montana, Nevada, Oregon, Washington and western Wyoming; the Company’s Central segment services customers located in Arizona, Colorado, southern Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, New Mexico, Oklahoma, South Dakota, western Texas, Utah and eastern Wyoming; and the Company’s Canada

14

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

segment services customers located in the state of Michigan and in the provinces of Alberta, British Columbia, Manitoba, Ontario, Québec and Saskatchewan.

The Company’s Chief Operating Decision Maker evaluates operating segment profitability and determines resource allocations based on several factors, of which the primary financial measure is segment EBITDA. The Company defines segment EBITDA as earnings before interest, taxes, depreciation, amortization, impairments and other operating items, and other income (expense). Segment EBITDA is not a measure of operating income, operating performance or liquidity under GAAP and may not be comparable to similarly titled measures reported by other companies. The Company’s management uses segment EBITDA in the evaluation of segment operating performance as it is a profit measure that is generally within the control of the operating segments. A reconciliation of segment EBITDA to Income before income tax provision is included at the end of this Note 10.

Summarized financial information concerning the Company’s reportable segments for the three months ended March 31, 2021 and 2020, is shown in the following tables:

Three Months Ended			Intercompany		Reported		Segment
March 31, 2021	Revenue		Revenue(b)		Revenue		EBITDA(c)
Southern	$	382,687	$	(44,526)	$	338,161	$	93,424
Eastern		398,830		(62,369)		336,461		89,121
Western		332,820		(35,816)		297,004		93,825
Central		267,702		(32,316)		235,386		79,040
Canada		211,786		(22,856)		188,930		73,940
Corporate(a)		—		—		—		(750)
	$	1,593,825	$	(197,883)	$	1,395,942	$	428,600

Three Months Ended			Intercompany		Reported		Segment
March 31, 2020	Revenue		Revenue(b)		Revenue		EBITDA(c)
Southern	$	416,382	$	(47,126)	$	369,256	$	106,319
Eastern		397,000		(64,798)		332,202		84,662
Western		305,436		(33,455)		271,981		81,029
Central		237,570		(29,028)		208,542		73,151
Canada		193,107		(22,684)		170,423		59,398
Corporate(a)		—		—		—		(3,631)
	$	1,549,495	$	(197,091)	$	1,352,404	$	400,928

____________________

(a) The majority of Corporate expenses are allocated to the five operating segments.  Direct acquisition expenses, expenses associated with common shares held in the deferred compensation plan exchanged for other investment options and share-based compensation expenses associated with Progressive Waste share-based grants outstanding at June 1, 2016 that were continued by the Company are not allocated to the five operating segments and comprise the net EBITDA of the Company’s Corporate segment for the periods presented.

(b) Intercompany revenues reflect each segment’s total intercompany sales, including intercompany sales within a segment and between segments. Transactions within and between segments are generally made on a basis intended to reflect the market value of the service.

(c) For those items included in the determination of segment EBITDA, the accounting policies of the segments are the same as those described in the Company’s most recent Annual Report on Form 10-K.

15

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

Total assets for each of the Company’s reportable segments at March 31, 2021 and December 31, 2020, were as follows:

	March 31,		December 31,
	2021		2020
Southern	$	3,373,593	$	3,402,081
Eastern		3,094,800		3,134,462
Western		1,859,205		1,861,079
Central		2,144,461		2,160,246
Canada		2,552,952		2,544,379
Corporate		1,017,918		890,117
Total Assets	$	14,042,929	$	13,992,364

The following tables show changes in goodwill during the three months ended March 31, 2021 and 2020, by reportable segment:

	Southern		Eastern		Western		Central		Canada		Total
Balance as of December 31, 2020	$	1,532,215	$	1,374,577	$	442,862	$	824,204	$	1,552,792	$	5,726,650
Goodwill acquired		—		—		2,289		—		—		2,289
Goodwill acquisition adjustments		(4)		1,408		—		4,385		(2)		5,787
Impact of changes in foreign currency		—		—		—		—		19,375		19,375
Balance as of March 31, 2021	$	1,532,211	$	1,375,985	$	445,151	$	828,589	$	1,572,165	$	5,754,101

	Southern		Eastern		Western		Central		Canada		Total
Balance as of December 31, 2019	$	1,528,225	$	1,331,180	$	400,037	$	729,470	$	1,521,939	$	5,510,851
Goodwill acquired		—		—		—		3,741		—		3,741
Goodwill acquisition adjustments		195		(524)		70		—		—		(259)
Impact of changes in foreign currency		—		—		—		—		(128,492)		(128,492)
Balance as of March 31, 2020	$	1,528,420	$	1,330,656	$	400,107	$	733,211	$	1,393,447	$	5,385,841

A reconciliation of the Company’s primary measure of segment profitability (segment EBITDA) to Income before income tax provision in the Condensed Consolidated Statements of Net Income is as follows:

	Three Months Ended
	March 31,
	2021		2020
Southern segment EBITDA	$	93,424	$	106,319
Eastern segment EBITDA		89,121		84,662
Western segment EBITDA		93,825		81,029
Central segment EBITDA		79,040		73,151
Canada segment EBITDA		73,940		59,398
Subtotal reportable segments		429,350		404,559
Unallocated corporate overhead		(750)		(3,631)
Depreciation		(157,402)		(150,821)
Amortization of intangibles		(32,192)		(31,638)
Impairments and other operating items		(634)		(1,506)
Interest expense		(42,425)		(37,990)
Interest income		1,103		2,175
Other income (expense), net		3,548		(9,521)
Income before income tax provision	$	200,598	$	171,627

16

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

11.DERIVATIVE FINANCIAL INSTRUMENTS

The Company recognizes all derivatives on the Condensed Consolidated Balance Sheets at fair value. All of the Company’s derivatives have been designated as cash flow hedges; therefore, the gain or loss on the derivatives will be recognized in accumulated other comprehensive income (loss) (“AOCIL”) and reclassified into earnings in the same period during which the hedged transaction affects earnings and is presented in the same income statement line item as the earnings effect of the hedged item.  The Company classifies cash inflows and outflows from derivatives within operating activities on the Condensed Consolidated Statements of Cash Flows.

One of the Company’s objectives for utilizing derivative instruments is to reduce its exposure to fluctuations in cash flows due to changes in the variable interest rates of certain borrowings under the Credit Agreement. The Company’s strategy to achieve that objective involves entering into interest rate swaps. The interest rate swaps outstanding at March 31, 2021 were specifically designated to the Credit Agreement and accounted for as cash flow hedges.

At March 31, 2021, the Company’s derivative instruments included six interest rate swap agreements as follows:

			Fixed		Variable
	Notional		Interest		Interest Rate
Date Entered	Amount		Rate Paid*		Received	Effective Date	Expiration Date
August 2017	$	100,000	1.900	%	1-month LIBOR	July 2019	July 2022
August 2017	$	200,000	2.200	%	1-month LIBOR	October 2020	October 2025
August 2017	$	150,000	1.950	%	1-month LIBOR	February 2020	February 2023
June 2018	$	200,000	2.925	%	1-month LIBOR	October 2020	October 2025
June 2018	$	200,000	2.925	%	1-month LIBOR	October 2020	October 2025
December 2018	$	200,000	2.850	%	1-month LIBOR	July 2022	July 2027

____________________

* Plus applicable margin.

The fair values of derivative instruments designated as cash flow hedges as of March 31, 2021, were as follows:

Derivatives Designated as Cash	Asset Derivatives			Liability Derivatives
Flow Hedges	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swaps	Prepaid expenses and other current assets	$	—	Accrued liabilities(a)	$	(19,778)
				Other long-term liabilities		(49,376)
Total derivatives designated as cash flow hedges		$	—		$	(69,154)

____________________

(a)Represents the estimated amount of the existing unrealized losses on interest rate swaps as of March 31, 2021 (based on the interest rate yield curve at that date), included in AOCIL expected to be reclassified into pre-tax earnings within the next 12 months. The actual amounts reclassified into earnings are dependent on future movements in interest rates.

The fair values of derivative instruments designated as cash flow hedges as of December 31, 2020, were as follows:

Derivatives Designated as Cash	Asset Derivatives			Liability Derivatives
Flow Hedges	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swaps	Prepaid expenses and other current assets	$	—	Accrued liabilities	$	(20,023)
				Other long-term liabilities		(74,666)
Total derivatives designated as cash flow hedges		$	—		$	(94,689)

17

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

The following table summarizes the impact of the Company’s cash flow hedges on the results of operations, comprehensive income (loss) and AOCIL for the three months ended March 31, 2021 and 2020:

Derivatives					Statement of	Amount of (Gain) or Loss Reclassified
Designated as Cash	Amount of Gain or (Loss) Recognized				Net Income	from AOCIL into Earnings,
Flow Hedges	as AOCIL on Derivatives, Net of Tax (a)				Classification	Net of Tax (b)
	Three Months Ended					Three Months Ended
	March 31,					March 31,
	2021		2020			2021		2020
Interest rate swaps	$	15,243	$	(42,649)	Interest expense	$	3,525	$	(323)

____________________

(a)In accordance with the derivatives and hedging guidance, the changes in fair values of interest rate swaps have been recorded in equity as a component of AOCIL. As the critical terms of the interest rate swaps match the underlying debt being hedged, all unrealized changes in fair value are recorded in AOCIL.

(b)Amounts reclassified from AOCIL into earnings related to realized gains and losses on interest rate swaps are recognized when interest payments or receipts occur related to the swap contracts, which correspond to when interest payments are made on the Company’s hedged debt.

See Note 15 for further discussion on the impact of the Company’s hedge accounting to its consolidated comprehensive income (loss) and AOCIL.  

12.FAIR VALUE OF FINANCIAL INSTRUMENTS

The Company’s financial instruments consist primarily of cash and equivalents, trade receivables, restricted cash and investments, trade payables, debt instruments, contingent consideration obligations and interest rate swaps. As of March 31, 2021 and December 31, 2020, the carrying values of cash and equivalents, trade receivables, restricted cash and investments, trade payables and contingent consideration are considered to be representative of their respective fair values. The carrying values of the Company’s debt instruments, excluding certain notes as listed in the table below, approximate their fair values as of March 31, 2021 and December 31, 2020, based on current borrowing rates, current remaining average life to maturity and borrower credit quality for similar types of borrowing arrangements, and are classified as Level 2 within the fair value hierarchy. The carrying values and fair values of the Company’s debt instruments where the carrying values do not approximate their fair values as of March 31, 2021 and December 31, 2020, are as follows:

	Carrying Value at				Fair Value* at
	March 31,		December 31,		March 31,		December 31,
	2021		2020		2021		2020
4.64% Senior Notes due 2021	$	100,000	$	100,000	$	100,010	$	100,850
2.39% Senior Notes due 2021	$	150,000	$	150,000	$	150,363	$	150,695
3.09% Senior Notes due 2022	$	125,000	$	125,000	$	128,420	$	128,482
2.75% Senior Notes due 2023	$	200,000	$	200,000	$	206,447	$	206,204
3.24% Senior Notes due 2024	$	150,000	$	150,000	$	157,859	$	158,140
3.41% Senior Notes due 2025	$	375,000	$	375,000	$	398,579	$	403,025
3.03% Senior Notes due 2026	$	400,000	$	400,000	$	416,544	$	424,874
3.49% Senior Notes due 2027	$	250,000	$	250,000	$	264,697	$	271,198
4.25% Senior Notes due 2028	$	500,000	$	500,000	$	563,500	$	597,050
3.50% Senior Notes due 2029	$	500,000	$	500,000	$	536,050	$	570,450
2.60% Senior Notes due 2030	$	600,000	$	600,000	$	603,240	$	644,520
3.05% Senior Notes due 2050	$	500,000	$	500,000	$	471,600	$	540,050

____________________

*Senior Notes are classified as Level 2 within the fair value hierarchy. Fair value inputs include third-party calculations of the market interest rate of notes with similar ratings in similar industries over the remaining note terms.

18

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

For details on the fair value of the Company’s interest rate swaps, restricted cash and investments and contingent consideration, refer to Note 14.

13.NET INCOME PER SHARE INFORMATION

The following table sets forth the calculation of the numerator and denominator used in the computation of basic and diluted net income per common share attributable to the Company’s shareholders for the three months ended March 31, 2021 and 2020:

	Three Months Ended
	2021		2020
Numerator:
Net income attributable to Waste Connections for basic and diluted earnings per share	$	160,309	$	143,035
Denominator:
Basic shares outstanding		262,697,487		263,790,364
Dilutive effect of equity-based awards		459,168		562,794
Diluted shares outstanding		263,156,655		264,353,158

14.FAIR VALUE MEASUREMENTS

The Company uses a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis in periods subsequent to their initial measurement. These tiers include:  Level 1, defined as quoted market prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, model-based valuation techniques for which all significant assumptions are observable in the market, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and Level 3, defined as unobservable inputs that are not corroborated by market data.

The Company’s financial assets and liabilities recorded at fair value on a recurring basis include derivative instruments and restricted cash and investments. At March 31, 2021 and December 31, 2020, the Company’s derivative instruments included pay-fixed, receive-variable interest rate swaps. The Company’s interest rate swaps are recorded at their estimated fair values based on quotes received from financial institutions that trade these contracts. The Company verifies the reasonableness of these quotes using similar quotes from another financial institution as of each date for which financial statements are prepared. For the Company’s interest rate swaps, the Company also considers the Company’s creditworthiness in its determination of the fair value measurement of these instruments in a net liability position and the counterparties’ creditworthiness in its determination of the fair value measurement of these instruments in a net asset position. The Company’s restricted cash and investments are valued at quoted market prices in active markets for similar assets, which the Company receives from the financial institutions that hold such investments on its behalf. The Company’s restricted cash and investments measured at fair value are invested primarily in money market accounts, bank time deposits, U.S. government and agency securities and Canadian bankers’ acceptance notes.

19

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

The Company’s assets and liabilities measured at fair value on a recurring basis at March 31, 2021 and December 31, 2020, were as follows:

	Fair Value Measurement at March 31, 2021 Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Interest rate swap derivative instruments – net liability position	$	(69,154)	$	—	$	(69,154)	$	—
Restricted cash and investments	$	162,847	$	—	$	162,847	$	—
Contingent consideration	$	(66,978)	$	—	$	—	$	(66,978)

	Fair Value Measurement at December 31, 2020 Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Interest rate swap derivative instruments – net liability position	$	(94,689)	$	—	$	(94,689)	$	—
Restricted cash and investments	$	155,176	$	—	$	155,176	$	—
Contingent consideration	$	(71,736)	$	—	$	—	$	(71,736)

The following table summarizes the changes in the fair value for Level 3 liabilities related to contingent consideration for the three months ended March 31, 2021 and 2020:

	Three Months Ended March 31,
	2021		2020
Beginning balance	$	71,736	$	69,484
Payment of contingent consideration recorded at acquisition date		(4,807)		(1,976)
Payment of contingent consideration recorded in earnings		(520)		—
Adjustments to contingent consideration		89		—
Interest accretion expense		495		416
Foreign currency translation adjustment		(15)		(325)
Ending balance	$	66,978	$	67,599

20

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

15.OTHER COMPREHENSIVE INCOME (LOSS)

Other comprehensive income (loss) includes changes in the fair value of interest rate swaps that qualify for hedge accounting. The components of other comprehensive income (loss) and related tax effects for the three months ended March 31, 2021 and 2020 are as follows:

	Three Months Ended March 31, 2021
	Gross		Tax Effect		Net of Tax
Interest rate swap amounts reclassified into interest expense	$	4,796	$	(1,271)	$	3,525
Changes in fair value of interest rate swaps		20,739		(5,496)		15,243
Foreign currency translation adjustment		28,054		—		28,054
	$	53,589	$	(6,767)	$	46,822

	Three Months Ended March 31, 2020
	Gross		Tax Effect		Net of Tax
Interest rate swap amounts reclassified into interest expense	$	(440)	$	117	$	(323)
Changes in fair value of interest rate swaps		(58,026)		15,377		(42,649)
Foreign currency translation adjustment		(184,717)		—		(184,717)
	$	(243,183)	$	15,494	$	(227,689)

A rollforward of the amounts included in AOCIL, net of taxes, for the three months ended March 31, 2021 and 2020, is as follows:

			Foreign		Accumulated
			Currency		Other
	Interest		Translation		Comprehensive
	Rate Swaps		Adjustment		Income (Loss)
Balance at December 31, 2020	$	(69,596)	$	68,945	$	(651)
Amounts reclassified into earnings		3,525		—		3,525
Changes in fair value		15,243		—		15,243
Foreign currency translation adjustment		—		28,054		28,054
Balance at March 31, 2021	$	(50,828)	$	96,999	$	46,171

			Foreign		Accumulated
			Currency		Other
	Interest		Translation		Comprehensive
	Rate Swaps		Adjustment		Income (Loss)
Balance at December 31, 2019	$	(29,255)	$	18,292	$	(10,963)
Amounts reclassified into earnings		(323)		—		(323)
Changes in fair value		(42,649)		—		(42,649)
Foreign currency translation adjustment		—		(184,717)		(184,717)
Balance at March 31, 2020	$	(72,227)	$	(166,425)	$	(238,652)

See Note 11 for further discussion on the Company’s derivative instruments.

21

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

16.SHAREHOLDERS’ EQUITY

Share-Based Compensation

Restricted Share Units

A summary of activity related to restricted share units (“RSUs”) during the three-month period ended March 31, 2021, is presented below:

	Unvested Shares
Outstanding at December 31, 2020	772,625
Granted	447,301
Forfeited	(13,569)
Vested and issued	(340,529)
Outstanding at March 31, 2021	865,828

The weighted average grant-date fair value per share for the common shares underlying the RSUs granted during the three-month period ended March 31, 2021 was $97.56.

Recipients of the Company’s RSUs who participate in the Company’s Nonqualified Deferred Compensation Plan may have elected in years prior to 2015 to defer some or all of their RSUs as they vest until a specified date or dates they choose. At the end of the deferral periods, unless a qualified participant makes certain other elections, the Company issues to recipients who deferred their RSUs common shares of the Company underlying the deferred RSUs. At March 31, 2021 and 2020, the Company had 158,610 and 190,201 vested deferred RSUs outstanding, respectively.

Performance-Based Restricted Share Units

A summary of activity related to performance-based restricted share units (“PSUs”) during the three-month period ended March 31, 2021, is presented below:

	Unvested Shares
Outstanding at December 31, 2020	434,558
Granted	116,784
Forfeited	(5,048)
Vested and issued	(154,251)
Outstanding at March 31, 2021	392,043

During the three months ended March 31, 2021, the Company’s Compensation Committee granted PSUs with three-year performance-based metrics that the Company must meet before those awards may be earned, and the performance period for those grants ends on December 31, 2023. The Compensation Committee will determine the achievement of performance results and corresponding vesting of PSUs for each performance period. The weighted average grant-date fair value per share for the common shares underlying all PSUs granted during the three-month period ended March 31, 2021 was $96.99.

22

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

Deferred Share Units

A summary of activity related to deferred share units (“DSUs”) during the three-month period ended March 31, 2021, is presented below:

	Vested Shares
Outstanding at December 31, 2020	21,586
Granted	2,856
Outstanding at March 31, 2021	24,442

The DSUs consist of a combination of DSU grants outstanding under the Progressive Waste share-based compensation plans that were continued by the Company following the Progressive Waste acquisition and DSUs granted by the Company since the Progressive Waste acquisition. The weighted average grant-date fair value per share for the common shares underlying the DSUs granted during the three-month period ended March 31, 2021 was $99.80.

Other Restricted Share Units

RSU grants outstanding under the Progressive Waste share-based compensation plans were continued by the Company following the Progressive Waste acquisition and allow for the issuance of shares or cash settlement to employees upon vesting. A summary of activity related to Progressive Waste RSUs during the three-month period ended March 31, 2021, is presented below:

Outstanding at December 31, 2020	66,554
Cash settled	(1,318)
Outstanding at March 31, 2021	65,236

No RSUs under the Progressive Waste share-based compensation plans were granted subsequent to June 1, 2016.  All remaining RSUs were vested as of March 31, 2019.

Share Based Options

Share based options outstanding under the Progressive Waste share-based compensation plans were continued by the Company following the Progressive Waste acquisition and allow for the issuance of shares or cash settlement to employees upon vesting. A summary of activity related to Progressive Waste share based options during the three-month period ended March 31, 2021, is presented below:

Outstanding at December 31, 2020	51,200
Cash settled	(3,131)
Outstanding at March 31, 2021	48,069

No share based options under the Progressive Waste share-based compensation plans were granted subsequent to June 1, 2016. All outstanding share based options were vested as of December 31, 2017.

Employee Share Purchase Plan

On May 15, 2020, the Company’s shareholders approved the 2020 Employee Share Purchase Plan (the “ESPP”). Under the ESPP, qualified employees may elect to have payroll deductions withheld from their eligible compensation on

23

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

each payroll date in amounts equal to or greater than one percent (1%) but not in excess of ten percent (10%) of eligible compensation in order to purchase the Company’s common shares under certain terms and subject to certain restrictions set forth in the ESPP. The exercise price is equal to 95% of the closing price of the Company’s common shares on the last day of the relevant offering period, subject to certain restrictions. The maximum number of shares that may be issued under the ESPP is 1,000,000. As of March 31, 2021, none of the Company’s common shares have been purchased under the ESPP.

Normal Course Issuer Bid

On July 23, 2020, the Board of Directors of the Company approved, subject to receipt of regulatory approvals, the annual renewal of the Company’s normal course issuer bid (the “NCIB”) to purchase up to 13,144,773 of the Company’s common shares during the period of August 10, 2020 to August 9, 2021 or until such earlier time as the NCIB is completed or terminated at the option of the Company. The renewal followed the conclusion of the Company’s NCIB that expired August 7, 2020. The Company received Toronto Stock Exchange (the “TSX”) approval for its annual renewal of the NCIB on August 5, 2020.  Under the NCIB, the Company may make share repurchases only in the open market, including on the New York Stock Exchange (the “NYSE”), the TSX, and/or alternative Canadian trading systems, at the prevailing market price at the time of the transaction.

In accordance with TSX rules, any daily repurchases made through the TSX and alternative Canadian trading systems is limited to a maximum of 112,638 common shares, which represents 25% of the average daily trading volume on the TSX of 450,555 common shares for the period from February 1, 2020 to July 31, 2020. The TSX rules also allow the Company to purchase, once a week, a block of common shares not owned by any insiders, which may exceed such daily limit. The maximum number of shares that can be purchased per day on the NYSE will be 25% of the average daily trading volume for the four calendar weeks preceding the date of purchase, subject to certain exceptions for block purchases.

The timing and amounts of any repurchases pursuant to the NCIB will depend on many factors, including the Company’s capital structure, the market price of the common shares and overall market conditions. All common shares purchased under the NCIB shall be immediately cancelled following their repurchase.

For the three months ended March 31, 2021, the Company repurchased 666,184 common shares pursuant to the NCIB at an aggregate cost of $65,999.  During the three months ended March 31, 2020, the Company repurchased 1,271,977 common shares pursuant to the NCIB at an aggregate cost of $105,654.  As of March 31, 2021, the remaining maximum number of shares available for repurchase under the current NCIB was 12,478,589.

Cash Dividend

In October 2020, the Company announced that its Board of Directors increased its regular quarterly cash dividend by $0.02, from $0.185 to $0.205 per Company common share. Cash dividends of $53,909 and $48,018 were paid during the three months ended March 31, 2021 and 2020, respectively.

17.COMMITMENTS AND CONTINGENCIES

In the normal course of its business and as a result of the extensive governmental regulation of the solid waste and E&P waste industries, the Company is subject to various judicial and administrative proceedings involving Canadian regulatory authorities as well as U.S. federal, state and local agencies. In these proceedings, an agency may subpoena the Company for records, or seek to impose fines on the Company or revoke or deny renewal of an authorization held by the Company, including an operating permit. From time to time, the Company may also be subject to actions brought by special interest or other groups, adjacent landowners or residents in connection with the permitting and licensing of

24

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

landfills, transfer stations, and E&P waste treatment, recovery and disposal operations, or alleging environmental damage or violations of the permits and licenses pursuant to which the Company operates. The Company uses $1,000 as a threshold (up from the previously required threshold of $300) for disclosing environmental matters involving potential monetary sanctions.

In addition, the Company is a party to various claims and suits pending for alleged damages to persons and property, alleged violations of certain laws and alleged liabilities arising out of matters occurring during the normal operation of the Company’s business. Except as noted in the matters described below, as of March 31, 2021, there is no current proceeding or litigation involving the Company or its property that the Company believes could have a material adverse effect on its business, financial condition, results of operations or cash flows.

Lower Duwamish Waterway Superfund Site Allocation Process

In November 2012, the Company’s subsidiary, Northwest Container Services, Inc. (“NWCS”), was named by the U.S. Environmental Protection Agency, Region 10 (the “EPA”) as a potentially responsible party (“PRP”), along with more than 100 others, under the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA” or the “Superfund” law) with respect to the Lower Duwamish Waterway Superfund Site (the “LDW Site”).  Listed on the National Priorities List in 2001, the LDW Site is a five-mile stretch of the Duwamish River flowing into Elliott Bay in Seattle, Washington.  A group of PRPs known as the Lower Duwamish Working Group (“LDWG”) and consisting of the City of Seattle, King County, the Port of Seattle, and Boeing Company conducted a Remedial Investigation/Feasibility Study for the LDW Site.  On December 2, 2014, the EPA issued its Record of Decision (the “ROD”) describing the selected clean-up remedy, and therein estimated that clean-up costs (in present value dollars as of November 2014) would total approximately $342,000. However, it is possible that additional costs could be incurred based upon various factors. The EPA estimates that it will take seven years to implement the clean-up. The ROD also requires ten years of monitoring following the clean-up, and provides that if clean-up goals have not been met by the end of this period, then additional clean-up activities, at additional cost, may be required at that time. Implementation of the clean-up will not begin until after the ongoing Early Action Area (“EAA”) clean-ups have been completed.  Typically, costs for monitoring may be in addition to those expended for the clean-up.  While three of the EAA clean-ups have been completed to date, some work remains to be done on three other EAAs.  Implementation of the clean-up also must await additional baseline sampling throughout the LDW Site and the preparation of a remedial design for performing the clean-up.  On April 27, 2016, the LDWG entered into a third amendment of its Administrative Order on Consent with the EPA (the “AOC 3”) in which it agreed to perform the additional baseline sediment sampling and certain technical studies needed to prepare the actual remedial design.  The LDWG and the EPA entered into a fourth amendment to the AOC in July 2018 primarily addressing development of a proposed remedy for the upper reach of the LDW Site, river mile 3 to river mile 5.  At the April 24, 2019 stakeholders meeting the LDWG projected completion of the remedial design for the upper reach could be completed by August 2024.  In late September 2020, the EPA informed attorneys for several PRPs that the work may be completed by late 2023 or early 2024.

On August 16, 2016, the EPA sent individual letters to each of the PRPs for the LDW Site, including NWCS, stating that it expected to initiate negotiations with all PRPs in early 2018 relating to a Remedial Design/Remedial Action (“RD/RA”) Consent Decree.  An RD/RA Consent Decree provides for the cleanup of the entire site and is often referred to as a “global settlement.”  In August 2014, NWCS entered into an Alternative Dispute Resolution Memorandum of Agreement with several dozen other PRPs and a neutral allocator to conduct a confidential and non-binding allocation of certain past response costs allegedly incurred at the LDW Site as well as the anticipated future response costs associated with the clean-up.  In March 2017, the PRPs provided the EPA with notice that the allocation was not scheduled to conclude until mid-2019.  Later extensions pushed the allocation conclusion date first to early 2020 and then to July 2020.  The EPA was informed of those changes.  The allocator’s most recent projection is that the preliminary allocation report may be issued by the end of April 2021.  The final allocation report will be issued only after the allocator considers comments of

25

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

the parties on the preliminary report.  In September 2020, the EPA informed attorneys for several PRPs that the EPA intends to initiate settlement negotiations in 2021, and the EPA was informed of the delay in the issuance of the preliminary allocation report. More recently, the EPA indicated that settlement negotiations would begin in 2022.  NWCS is defending itself vigorously in this confidential allocation process.  At this point, the Company is not able to determine the likelihood of the allocation process being completed as intended by the participating PRPs, its specific allocation, or the likelihood of the parties then negotiating a global settlement with the EPA.  Thus, NWCS cannot reasonably determine the likelihood of any outcome in this matter, including its potential liability.

On February 11, 2016, NWCS received a letter (the “Letter”) from the United States Department of Commerce, National Oceanic and Atmospheric Administration (“NOAA”), describing certain investigatory activities conducted by the Elliott Bay Trustee Council (the “Council”).  The Council consists of all of the natural resources trustees for the LDW Site as well as two nearby Superfund sites, the Harbor Island site and the Lockheed West site.  The members of the Council include the United States, on behalf of the U.S. National Oceanic and Atmospheric Administration and the U.S. Department of the Interior, the Washington State Department of Ecology, and the Suquamish and Muckleshoot Indian Tribes (together, the “Trustees”).  The Letter appears to allege that NWCS may be a potentially liable party that allegedly contributed to the release of hazardous substances that have injured natural resources at the LDW Site.  Damages to natural resources are in addition to clean-up costs.  The Letter, versions of which NWCS believes were sent to all or a group of the PRPs for the LDW Site, also notified its recipients of their opportunity to participate in the Trustees’ development of an Assessment Plan and the performance of a Natural Resources Damages Assessment (“NRDA”) in accordance with the Assessment Plan for both the LDW Site and the east and west waterways of the Harbor Island site.  NWCS timely responded with correspondence to the NOAA Office of General Counsel, in which it declined the invitation at that time.  NWCS does not know how other PRPs responded to the Letter, and has not received any further communication from NOAA or the Trustees.  The Trustees have not responded to NWCS’ letter.  The Trustees released their Assessment Plan in March 2019.  The Assessment Plan does not set forth a timeline for implementation.  At this point, the Company is not able to determine the likelihood or amount of an assessment of natural resource damages against NWCS in connection with this matter.

Los Angeles County, California Landfill Expansion Litigation

A. Chiquita Canyon, LLC Lawsuit Against Los Angeles County

In October 2004, the Company’s subsidiary, Chiquita Canyon, LLC (“CCL”), then under prior ownership, filed an application (the “Application”) with the County of Los Angeles (the “County”) Department of Regional Planning (“DRP”) for a conditional use permit (the “CUP”) to authorize the continued operation and expansion of the Chiquita Canyon Landfill (the “Landfill”). The Landfill has operated since 1972, and as a regional landfill, accepted over two million tons of materials for disposal and beneficial use in 2020.  The Application requested expansion of the existing waste footprint on CCL’s contiguous property, an increase in maximum elevation, creation of a new entrance and new support facilities, construction of a facility for the County or another third-party operator to host household hazardous waste collection events, designation of an area for mixed organics/composting, and other modifications.

After many years of reviews and delays, upon the recommendation of County staff, the County’s Regional Planning Commission (the “Commission”) approved the Application on April 19, 2017, but imposed operating conditions, fees and exactions that substantially reduce the historical landfill operations and represent a large increase in aggregate taxes and fees. CCL objected to many of the requirements imposed by the Commission.  Current estimates for new costs imposed on CCL under the CUP are in excess of $300,000.

CCL appealed the Commission’s decision to the County Board of Supervisors, but the appeal was not successful.  At a subsequent hearing, on July 25, 2017, the Board of Supervisors approved the CUP.  On October 20, 2017, CCL filed in

26

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

the Superior Court of California, County of Los Angeles a verified petition for writ of mandate and complaint against the County and the County Board of Supervisors captioned Chiquita Canyon, LLC v. County of Los Angeles, No. BS171262 (Los Angeles Co. Super Ct.) (the “Complaint”).  The Complaint challenges the terms of the CUP in 13 counts generally alleging that the County violated multiple California and federal statutes and California and federal constitutional protections. CCL seeks the following relief: (a) an injunction and writ of mandate against certain of the CUP’s operational restrictions, taxes and fees, (b) a declaration that the challenged conditions are unconstitutional and in violation of state and federal statutes, (c) reimbursement for any such illegal fees paid under protest, (d) damages, (e) an award of just compensation for a taking, (f) attorney fees, and (g) all other appropriate legal and equitable relief.

Extensive motions practice and an interlocutory appeal occurred in 2018 and 2019 over the permissible scope of CCL’s challenge to the CUP, specifically 13 operational conditions in the CUP. The Superior Court ruled in CCL’s favor on November 13, 2019, finding that the County was estopped from contending that CCL has waived its rights to challenge the legality of the 13 operational conditions. The County sought interlocutory review of the Superior Court’s decision in the Court of Appeal, which denied the County’s petition on February 7, 2020.

Following full briefing and oral argument on June 22, 2020 on six of CCL’s causes of action, the Superior Court issued its decision on July 2, 2020, granting CCL’s petition for writ of mandate in part and denying it in part. CCL prevailed with respect to 12 of the challenged conditions, many of which imposed new fees and exactions on the Landfill.  Before entry of final judgment, the Superior Court will hear CCL’s remaining causes of action.  A cause of action for a taking under the Fifth Amendment of the U.S. Constitution is the subject of a pending motion for leave to amend the Complaint.  Once the Superior Court has entered final judgment, CCL and the County will be permitted to appeal any adverse ruling to the California Court of Appeal.  After entry of final judgment and resolution of any appeals, the Superior Court will issue a writ directing the County Board of Supervisors to set aside its decision on the permit with respect to 12 of the challenged conditions.  The Board will be allowed to make additional findings to support four of those conditions and reconsider its permit decision in light of the Superior Court’s writ.  CCL will continue to vigorously prosecute the lawsuit.  However, at this point, the Company is not able to determine the likelihood of any outcome in this matter.

B. CEQA Lawsuit Against Los Angeles County Challenging Environmental Review for Landfill Expansion

A separate lawsuit involving CCL and the Landfill was filed on August 24, 2017 by community activists alleging that the environmental review underlying the CUP was inadequate under state law. The Val Verde Civic Association, Citizens for Chiquita Canyon Landfill Compliance, and the Santa Clarita Organization for Planning and the Environment filed a petition for writ of mandate in the Superior Court of California, County of Los Angeles against the County, naming CCL as the real party in interest. The lawsuit seeks to overturn the County’s approval of the CUP for the expansion of the Landfill and the certification of the final Environmental Impact Report, arguing that the report violates the California Environmental Quality Act. Pursuant to Condition No. 6 of the CUP, which requires CCL to defend, indemnify, and hold harmless the County, its agents, officers, and employees from any claim or proceeding against the County brought by any third party to attack, set aside, void, or annul the CUP approval, CCL agreed to reimburse the County for its legal costs associated with defense of the lawsuit. As the real party in interest, CCL has a right to notice and an opportunity to be heard in opposition to the petition for writ of mandate. Initial briefs were filed in 2018 and a trial date was set in February 2019, which was later rescheduled and held in August 2019. The court issued a final ruling on October 10, 2019 and a final judgment on December 4, 2019, denying the writ petition in full. One petitioner, Santa Clarita Organization for Planning and the Environment, appealed the judgment. All interested parties filed their briefs by July 1, 2020 and the County did not file an opposition brief.  No amicus or “friend of the court” briefs were filed, so the case was fully briefed on July 1, 2020.  The court heard oral argument on November 18, 2020. The court issued its opinion on February 10, 2021, upholding the trial court’s ruling in full and rejecting the petitioner’s appeal. On February 25, 2021, the Petitioner filed a petition for a rehearing, which the Court of Appeal denied on February 26, 2021. The Petitioner did not file a petition for

27

WASTE CONNECTIONS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(DOLLAR AMOUNTS IN THOUSANDS OF U.S. DOLLARS, EXCEPT PER SHARE, PER TON AND PER GALLON AMOUNTS)

review to the California Supreme Court and the time for seeking review has expired. The Court of Appeal decision upholding the County’s Environmental Impact Report and approval of the CUP in full is now final.

C. December 11, 2017 Notice of Violation Regarding Certain CUP Conditions.

The County, through its DRP, issued a Notice of Violation, dated December 11, 2017 (the “NOV”), alleging that CCL violated certain conditions of the CUP, including Condition 79(B)(6) of the CUP by failing to pay an $11,600 Bridge & Thoroughfare Fee (“B&T Fee”) that was purportedly due on July 25, 2017. The alleged B&T fee was ostensibly to fund the construction of transportation infrastructure in the area of the Landfill. At the time the NOV was issued, CCL had already contested the legality of the B&T fee in the October 20, 2017 Complaint filed against the County in Los Angeles County Superior Court, described above under paragraph A (the “CUP lawsuit”).

On January 12, 2018, CCL filed an appeal of the alleged violations in the NOV.  Subsequently, CCL filed additional legal arguments and exhibits contesting the NOV.  On March 6, 2018, a DRP employee designated as hearing officer sustained the NOV, including the $11,600 B&T fee, and imposed an administrative penalty in the amount of $83 and a noncompliance fee of $0.75. A written decision memorializing the hearing officer’s findings and order was issued on July 10, 2018.  On April 13, 2018, CCL filed in the Superior Court of California, County of Los Angeles a Petition for Writ of Administrative Mandamus against the County seeking to overturn the decision sustaining the NOV, contending that the NOV and decision are not supported by the facts or law.  On July 17, 2018, the Court granted CCL leave to pay the $11,600 B&T fee and to amend its Complaint in the CUP lawsuit to reflect the payment under protest, allowing the challenge to the B&T fee under the Mitigation Fee Act to proceed in the CUP lawsuit.  CCL paid the B&T fee under protest on August 10, 2018, and also paid on that date the administrative penalty of $83 and a noncompliance fee of $0.75. The Court indicated that the NOV case would be coordinated with the CUP lawsuit.  The NOV case has been continued multiple times as the CUP lawsuit was adjudicated; it is now set for trial on September 14, 2021.  The Superior Court’s July 2, 2020 decision in the CUP lawsuit upheld the B&T fee against a Mitigation Fee Act challenge, and addressed two other conditions that were also the subject of the NOV, which may impact the scope of the B&T fee/NOV case.  CCL will continue to vigorously prosecute the lawsuit.  However, at this point, the Company is not able to determine the likelihood of any outcome in this matter.

18.SUBSEQUENT EVENT

On April 28, 2021, the Company announced that its Board of Directors approved a regular quarterly cash dividend of $0.205 per Company common share. The dividend will be paid on May 26, 2021, to shareholders of record on the close of business on May 12, 2021.

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Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations

FORWARD-LOOKING STATEMENTS

The following discussion should be read in conjunction with our Condensed Consolidated Financial Statements and the related notes included in Part I, Item 1 of this Quarterly Report on Form 10-Q.

We make statements in this Quarterly Report on Form 10-Q that are forward-looking in nature.  These include:

● Statements regarding our landfills, including capacity, duration, special projects, demand for and pricing of recyclables, landfill alternatives and related capital expenditures;

● Discussion of competition, loss of contracts, price increases and additional exclusive and/or long-term collection service arrangements;

● Forecasts of cash flows necessary for operations and free cash flow to reduce leverage as well as our ability to draw on our credit facility and access the capital markets to refinance or expand;

● Statements regarding our ability to access capital resources or credit markets at all or on favorable terms;

● Plans for, and the amounts of, certain capital expenditures for our existing and newly acquired properties and equipment;

● Statements regarding fuel, oil and natural gas demand, prices, and price volatility;

● Assessments of regulatory developments and potential changes in environmental, health, safety and tax laws and regulations; and

● Other statements on a variety of topics such as the COVID-19 pandemic, credit risk of customers, seasonality, labor/pension costs and labor union activity, operational and safety risks, acquisitions, litigation results, goodwill impairments, insurance costs and cybersecurity threats.

These statements can be ‎identified by the use of forward-looking terminology such as “believes,” “expects,” “intends,” “may,” “might,” “will,” ‎‎“could,” “should” or “anticipates,” or the negative thereof or comparable terminology, or by discussions of strategy.

Our ‎business and operations are subject to a variety of risks and uncertainties and, consequently, actual results may differ ‎materially from those projected by any forward-looking statements. Factors that could cause actual results to differ ‎from those projected include, but are not limited to, risk factors detailed from time to time in our filings with the SEC and the securities commissions or similar regulatory authorities in Canada.  

There may be additional risks of which we are not presently aware or that we currently believe are immaterial that ‎could have an adverse impact on our business. We make no commitment to revise or update any forward-looking ‎statements to reflect events or circumstances that may change, unless required under applicable securities laws.

OVERVIEW OF OUR BUSINESS

We are an integrated solid waste services company that provides non-hazardous waste collection, transfer and disposal services, along with recycling and resource recovery, in mostly exclusive and secondary markets across 43 states in the U.S. and six provinces in Canada. Waste Connections also provides non-hazardous oilfield waste treatment, recovery and disposal services in several basins across the U.S., as well as intermodal services for the movement of cargo and solid waste containers in the Pacific Northwest.

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We generally seek to avoid highly competitive, large urban markets and instead target markets where we can attain high market share either through exclusive contracts, vertical integration or asset positioning. In markets where waste collection services are provided under exclusive arrangements, or where waste disposal is municipally owned or funded or available at multiple municipal sources, we believe that controlling the waste stream by providing collection services under exclusive arrangements is often more important to our growth and profitability than owning or operating landfills. We also target niche markets, like E&P waste treatment and disposal services.

As of March 31, 2021, we served residential, commercial, industrial and E&P customers in 43 states in the U.S. and six provinces in Canada:  Alabama, Alaska, Arizona, Arkansas, California, Colorado, Delaware, Florida, Georgia, Idaho, Illinois, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, North Dakota, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, Wisconsin and Wyoming, and the provinces of Alberta, British Columbia, Manitoba, Ontario, Québec and Saskatchewan.

The solid waste industry is local and highly competitive in nature, requiring substantial labor and capital resources. We compete for collection accounts primarily on the basis of price and, to a lesser extent, the quality of service, and compete for landfill business on the basis of tipping fees, geographic location and quality of operations. The solid waste industry has been consolidating and continues to consolidate as a result of a number of factors, including the increasing costs and complexity associated with waste management operations and regulatory compliance. Many small independent operators and municipalities lack the capital resources, management, operating skills and technical expertise necessary to operate effectively in such an environment. The consolidation trend has caused solid waste companies to operate larger landfills that have complementary collection routes that can use company-owned disposal capacity. Controlling the point of transfer from haulers to landfills has become increasingly important as landfills continue to close and disposal capacity moves farther from the collection markets it serves.

Generally, the most profitable operators within the solid waste industry are those companies that are vertically integrated or enter into long-term collection contracts. A vertically integrated operator will benefit from:  (1) the internalization of waste, which is bringing waste to a company-owned landfill; (2) the ability to charge third-party haulers tipping fees either at landfills or at transfer stations; and (3) the efficiencies gained by being able to aggregate and process waste at a transfer station prior to landfilling.

The demand for our E&P waste services depends on the continued demand for, and production of, oil and natural gas. Crude oil and natural gas prices historically have been volatile. Macroeconomic and geopolitical conditions, including a significant decline in oil prices driven by both surplus production and supply, as well as the decrease in demand caused by factors including the COVID-19 pandemic, have resulted in decreased levels of oil and natural gas exploration and production activity and a corresponding decrease in demand for our E&P waste services.  Additionally, across the industry there is uncertainty regarding future demand for oil and related services, as noted by several energy companies, many of whom are customers of our E&P operations.  These companies have written down the values of their oil and gas assets in anticipation of the potential for the decarbonization of their energy product mix given an increased global focus on reducing greenhouse gases and addressing climate change.  Such uncertainty regarding global demand has had a significant impact on the investment and operating plans of our E&P waste customers in the basins where we operate.   If the prices of crude oil and natural gas substantially decline, it could lead to declines in the level of production activity and demand for our E&P waste services, which could result in the recognition of impairment charges on our intangible assets and property and equipment associated with our E&P operations.

THE COVID-19 PANDEMIC’S IMPACT ON OUR RESULTS OF OPERATION

March 11, 2021 marked the one year anniversary of COVID-19 being declared a global pandemic by the World Health Organization.  The related economic disruptions largely associated with closures or restrictions put into effect following the onset of the COVID-19 pandemic resulted in declines in solid waste commercial collection, transfer station and landfill volumes, and roll off activity.  Throughout the remaining fiscal year 2020, solid waste revenue and reported volumes largely reflected the pace and shape of the closures and subsequent reopening activity, with the timing and magnitude of recovery varying by market.  Reported solid waste volumes in 2020 turned slightly negative in the first quarter, were most negative in the second quarter, and showed sequential improvement during the second half of the year, finishing the year

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at negative 3.1% in the fourth quarter.  In the first quarter of 2021, the final period to include comparisons to pre-COVID-19 activity levels on a year over year basis, solid waste volumes were down 3.2%, reflecting the strong start to 2020 prior to the onset of the pandemic, compounded by the impact of an extra day in the quarter in 2020 due to leap year, as well as extreme winter weather in many markets during February 2021.  Solid waste volumes increased 2.6% in March 2021 compared to March 2020.

The COVID-19 pandemic also contributed to the decline in demand for and the value of crude oil, which impacted E&P drilling activity and resulted in lower E&P waste revenue, with the quarterly run rate decreasing from approximately $60 million in the first quarter of 2020 to approximately $25 million by the second half of 2020.  

Since the onset of the COVID-19 pandemic, protecting the health, welfare and safety of our employees has been our top priority.  Recognizing the potential for financial hardship and other challenges, we looked to provide a safety net for our employees on issues of income and family health.  To that end, in 2020, we incurred over $35 million in incremental COVID-19-related costs, primarily supplemental pay for frontline employees.  As we continue to support our employees and their families, such costs are expected to continue in 2021, albeit to a lesser extent than in the prior year, as employee COVID-19 cases and related impacts are similarly abating.

The impact of the COVID-19 pandemic on our business, results of operations, financial condition and cash flows in future periods will depend largely on future developments, including the duration and spread of the outbreak in the U.S. and Canada, the rate of vaccinations, the severity of COVID-19 variants, the actions to contain such coronavirus variants, and how quickly and to what extent normal economic and operating conditions can resume.    

CRITICAL ACCOUNTING ESTIMATES AND ASSUMPTIONS

The preparation of financial statements in conformity with U.S. generally accepted accounting principles, or GAAP, requires estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses and related disclosures of contingent assets and liabilities in the condensed consolidated financial statements. As described by the SEC, critical accounting estimates and assumptions are those that may be material due to the levels of subjectivity and judgment necessary to account for highly uncertain matters or the susceptibility of such matters to change, and that have a material impact on the financial condition or operating performance of a company. Such critical accounting estimates and assumptions are applicable to our reportable segments. Refer to our most recent Annual Report on Form 10-K for a complete description of our critical accounting estimates and assumptions.

NEW ACCOUNTING PRONOUNCEMENTS

For a description of the new accounting standards that affect us, see Note 3 to our Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q.

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RESULTS OF OPERATIONS FOR THE THREE MONTHS ENDED MARCH 31, 2021 AND 2020

The following table sets forth items in our Condensed Consolidated Statements of Net Income in thousands of U.S. dollars and as a percentage of revenues for the periods indicated.

	Three Months Ended March 31,
	2021				2020
Revenues	$	1,395,942	100.0	%	$	1,352,404	100.0	%
Cost of operations		825,920	59.2			815,424	60.3
Selling, general and administrative		141,422	10.1			136,052	10.1
Depreciation		157,402	11.3			150,821	11.2
Amortization of intangibles		32,192	2.3			31,638	2.3
Impairments and other operating items		634	0.0			1,506	0.1
Operating income		238,372	17.1			216,963	16.0
Interest expense		(42,425)	(3.0)			(37,990)	(2.8)
Interest income		1,103	0.1			2,175	0.2
Other income (expense), net		3,548	0.2			(9,521)	(0.7)
Income tax provision		(40,291)	(2.8)			(28,734)	(2.1)
Net income		160,307	11.6			142,893	10.6
Net loss attributable to noncontrolling interests		2	0.0			142	0.0
Net income attributable to Waste Connections	$	160,309	11.6	%	$	143,035	10.6	%

Revenues.  Total revenues increased $43.5 million, or 3.2%, to $1.396 billion for the three months ended March 31, 2021, from $1.352 billion for the three months ended March 31, 2020.

Acquisitions closed subsequent to the three months ended March 31, 2020 increased revenues by $43.7 million for the three months ended March 31, 2021.

Operations that were divested subsequent to March 31, 2020 decreased revenues by $3.2 million for the three months ended March 31, 2021.

During the three months ended March 31, 2021, the net increase in prices charged to our customers at our existing operations was $52.2 million, consisting of $55.9 million of core price increases, partially offset by a decrease in surcharges of $3.7 million.

During the three months ended March 31, 2021, volume decreases in our existing business decreased solid waste revenues by $40.5 million, due primarily to one less business day in 2021 resulting from leap year occurring in the prior year period and the economic disruptions resulting from the COVID-19 pandemic that began in March 2020 and has continued through the first quarter of 2021. With the exception of our Western segment, the majority of our markets experienced declines in commercial collection, roll off collection, transfer station and landfill volumes, with our Northeastern U.S. and Canada markets the most severely impacted. These declines were partially offset by shelter at home requirements generating additional residential collection volumes and our Western segment’s transfer station and landfill operations recognizing increased volumes from third party collection providers disposing of increased residential collection volumes at our disposal locations.

E&P revenues at facilities owned during the three months ended March 31, 2021 and 2020 decreased $34.7 million. Decreases in the demand for crude oil as a result of economic disruptions from the COVID-19 pandemic resulted in a drop in the value of crude oil, decreases in drilling and production activity levels and decreases in overall demand for our E&P waste services.

An increase in the average Canadian dollar to U.S. dollar currency exchange rate resulted in an increase in revenues of $10.3 million for the three months ended March 31, 2021. The average Canadian dollar to U.S. dollar exchange rates on our Canadian revenues were 0.7898 and 0.7447 in the three months ended March 31, 2021 and 2020, respectively.

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Revenues from sales of recyclable commodities at facilities owned during the three months ended March 31, 2021 and 2020 increased $11.3 million due primarily to higher prices for old corrugated cardboard and other paper products and higher volumes collected from residential recycling customers, partially offset by decreased collected commercial recycling volumes caused by economic disruptions resulting from the COVID-19 pandemic.

Other revenues increased by $4.4 million during the three months ended March 31, 2021, due primarily to a $6.0 million increase resulting from higher prices for renewable energy credits associated with the generation of landfill gas at our Canada segment and a $0.5 million increase in other non-core revenue sources, partially offset by a $2.1 million decrease in intermodal revenues due primarily to customer losses resulting in a reduction in intermodal cargo volumes.

Cost of Operations.  Total cost of operations increased $10.5 million, or 1.3%, to $825.9 million for the three months ended March 31, 2021, from $815.4 million for the three months ended March 31, 2020. The increase was primarily the result of $24.1 million of additional operating costs from acquisitions closed subsequent to the three months ended March 31, 2020 and $5.6 million resulting from an increase in the average foreign currency exchange rate in effect during the comparable reporting periods, partially offset by a decrease in operating costs at our existing operations of $17.2 million, assuming foreign currency parity, and a decrease in operating costs of $2.0 million at operations divested subsequent to the three months ended March 31, 2020.

The decrease in operating costs, assuming foreign currency parity, at our existing operations for the three months ended March 31, 2021, included the following declines totaling $19.6 million attributable to solid waste and E&P volume losses resulting from the impact of the COVID-19 pandemic: a decrease in direct labor expenses at our Southern and Eastern segments and our E&P operations of $5.8 million due to headcount reductions, a decrease in third-party disposal expenses at our Eastern, Southern, Central and Canada segments of $4.5 million, a decrease in equipment and facility maintenance and repair expenses at our Eastern segment and E&P operations of $3.6 million, a decrease in diesel fuel expense of $2.7 million, a decrease in subcontracted E&P operating expenses of $2.1 million and a decrease in expenses for processing recyclable commodities at our Eastern segment of $0.9 million due to a decrease in commercial recycling volumes collected.

The remaining increase in operating costs, assuming foreign currency parity, at our existing operations of $2.4 million for the three months ended March 31, 2021 consisted of an increase in employee medical benefits expenses of $3.6 million due to an increase in medical visits, an increase in labor expenses of $3.1 million at our Western and Central segments due primarily to employee pay increases exceeding the benefit in the current year period of one less calendar and business day due to leap year occurring in the prior year period, an increase in subcontracted hauling services at our solid waste operations of $2.4 million due to outsourcing the servicing of certain non-strategic contracts and commercial collection customers to third party haulers, an increase in cash incentive compensation to non-management personnel of $2.2 million to recognize the services they are providing during the COVID-19 pandemic as essential workers, an increase in third party disposal expenses in our Western segment of $1.7 million due primarily to increased residential collection volumes requiring disposal at third party facilities and $1.0 million of other net expense increases, partially offset by a decrease in expenses for auto and workers’ compensation claims of $8.0 million due primarily to higher claims severity in the prior year period and adjustments recorded in the current year period to decrease projected losses on outstanding claims originally recorded prior to 2021, a decrease in intermodal rail expenses of $1.8 million due to customer losses resulting in a reduction in cargo volume, a decrease in leachate disposal expenses of $1.0 million due to increased on-site treatment of leachate and the prior year period incurring higher costs to dispose of leachate in newly constructed landfill cells and a decrease in expenses for processing recyclable commodities in our Western segment of $0.8 million due to increased recyclable commodity values resulting in price reductions charged by third-party recycling processors.

Cost of operations as a percentage of revenues decreased 1.1 percentage points to 59.2% for the three months ended March 31, 2021, from 60.3% for the three months ended March 31, 2020. The decrease as a percentage of revenues consisted of a 0.7 percentage point decrease from a reduction in expenses for auto and workers’ compensation claims, a 0.3 percentage point decrease from lower maintenance and repair expenses, a 0.2 percentage point decrease from lower disposal expenses, a 0.2 percentage point decrease from lower diesel fuel expenses and a 0.2 percentage point decrease from leveraging existing personnel to support certain price-led revenue increases, partially offset by a 0.2 percentage point increase from the accrual of cash incentive compensation to non-management personnel, a 0.2 percentage point increase from higher employee medical benefits expenses and a 0.1 percentage point increase from all other net changes.

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SG&A.  SG&A expenses increased $5.3 million, or 3.9%, to $141.4 million for the three months ended March 31, 2021, from $136.1 million for the three months ended March 31, 2020. The increase was comprised of $3.0 million of additional SG&A expenses from operating locations at acquisitions closed subsequent to the three months ended March 31, 2020, an increase of $1.5 million in SG&A expenses at our existing operations, assuming foreign currency parity, and $1.0 million resulting from an increase in the average foreign currency exchange rate in effect during the comparable reporting periods, partially offset by a decrease in SG&A expenses of $0.2 million at operations divested subsequent to the three months ended March 31, 2020.

The increase in SG&A expenses at our existing operations, assuming foreign currency parity, of $1.5 million for the three months ended March 31, 2021, was comprised of an increase in deferred compensation expenses of $5.7 million as a result of increases in the market value of investments to which employee deferred compensation liability balances are tracked, an increase in accrued recurring cash incentive compensation expense to our management of $5.0 million, an increase in professional fees of $1.6 million due primarily to adjustments recorded during the prior year period to reduce estimated accrued liabilities associated with unbilled legal services, an increase in share-based compensation expenses of $1.2 million due primarily to increased average share price values in the current period for equity awards accounted for as liabilities that were granted to employees of Progressive Waste prior to June 1, 2016 which are subject to valuation adjustments each period based on changes in fair value and an increase in employee medical benefits expenses of $1.2 million due to an increase in medical visits, partially offset by a collective decrease in travel, meeting, training and community activity expenses of $6.0 million from shelter at home and other restrictions on our employees due to the COVID-19 pandemic resulting in the cancellation of non-essential off-site activities, a decrease in equity-based compensation expenses of $3.4 million associated with an adjustment during the prior year period of our common shares held in our deferred compensation plan by certain key executives to fair value as a result of the shares being exchanged for other investment options, a decrease in expenses for uncollectible accounts receivable of $0.8 million primarily due to collections in the current period of customer accounts deemed uncollectible in prior periods, a decrease in office supplies and office utilities of $0.7 million due to office closures resulting from shelter at home restrictions, a decrease in direct acquisition expenses of $0.6 million due to a decrease in acquisition activity in the comparable periods, a decrease in equity-compensation expenses of $0.6 million due primarily to a decrease in the amount of performance-based restricted share units granted in 2019 and 2020 estimated to ultimately vest based on the achievement of required financial performance results and $1.1 million of other net expense decreases.

SG&A as a percentage of revenues was 10.1% for both the three months ended March 31, 2021 and 2020. SG&A remained unchanged as a percentage of revenues as a result of a 0.4 percentage point decrease from a reduction in travel, meeting, training and community activity expenses, a 0.3 percentage point decrease from a reduction in equity-based compensation expenses associated with the designation of our common shares held in our deferred compensation plan and a 0.1 percentage point decrease from the net impact of SG&A expenses from acquisitions closed subsequent to the three months ended March 31, 2020, partially offset by a 0.4 percentage point increase from cash incentive compensation expenses and a 0.4 percentage point increase from deferred compensation expenses.

Depreciation.  Depreciation expense increased $6.6 million, or 4.4%, to $157.4 million for the three months ended March 31, 2021, from $150.8 million for the three months ended March 31, 2020. The increase was comprised of $5.0 million of depreciation from the impact of additions to our fleet and equipment purchased to support our existing operations, depreciation and depletion expense of $4.0 million from acquisitions closed subsequent to the three months ended March 31, 2020 and $1.1 million resulting from an increase in the average foreign currency exchange rate in effect during the comparable reporting periods, partially offset by a decrease in depletion expense of $2.7 million primarily at our E&P landfills as a decrease in demand for oil has resulted in decreased levels of oil and natural gas exploration and production activity and a corresponding decrease in disposal volumes and a decrease in depreciation and depletion expense of $0.8 million from operations divested subsequent to the three months ended March 31, 2020.

Depreciation expense as a percentage of revenues increased 0.1 percentage points to 11.3% for the three months ended March 31, 2021, from 11.2% for the three months ended March 31, 2020. The increase as a percentage of revenues consisted of a 0.3 percentage point increase from depreciation expense attributable to the impact of additions to our fleet and equipment, partially offset by a 0.2 percentage point decrease from depletion expense due to declines in E&P landfill volumes.

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Amortization of Intangibles.  Amortization of intangibles expense increased $0.6 million, or 1.8%, to $32.2 million for the three months ended March 31, 2021, from $31.6 million for the three months ended March 31, 2020. The increase was the result of $2.8 million from intangible assets acquired in acquisitions closed subsequent to the three months ended March 31, 2020 and $0.3 million from an increase in the average foreign currency exchange rate in effect during the comparable reporting periods, partially offset by a decrease of $2.4 million from certain intangible assets becoming fully amortized subsequent to March 31, 2020 and a decrease of $0.1 million from operations divested subsequent to the three months ended March 31, 2020.

Amortization expense as a percentage of revenues was 2.3% for both the three months ended March 31, 2021 and 2020.  

Impairments and Other Operating Items.  Impairments and other operating items decreased $0.9 million, to net losses totaling $0.6 million for the three months ended March 31, 2021, from net losses totaling $1.5 million for the three months ended March 31, 2020.

The net losses of $0.6 million recorded during the three months ended March 31, 2021 consisted of $0.5 million of charges to terminate or write off the carrying cost of certain contracts that were not, or are not expected to be, renewed prior to their original estimated termination date and $0.1 million of other net charges.

The net losses of $1.5 million recorded during the three months ended March 31, 2020 consisted of $0.9 million of charges to terminate or write off the carrying cost of certain contracts that were not, or were not expected to be, renewed prior to their original estimated termination date and $0.6 million of other net charges.

Operating Income.  Operating income increased $21.4 million, or 9.9%, to $238.4 million for the three months ended March 31, 2021, from $217.0 million for the three months ended March 31, 2020. The increase was due primarily to price increases for our solid waste services, operating income contributions from increased sales of recyclable commodities and renewable energy credits associated with the generation of landfill gas, operating income generated from acquisitions closed subsequent to the three months ended March 31, 2020 and an increase in the average Canadian dollar to U.S. dollar currency exchange rate, partially offset by declines in our existing solid waste and E&P volumes resulting from the impact of the COVID-19 pandemic.

Operating income as a percentage of revenues increased 1.1 percentage points to 17.1% for the three months ended March 31, 2021, from 16.0% for the three months ended March 31, 2020.  The increase as a percentage of revenues was comprised of a 1.1 percentage point increase in cost of operations and a 0.1 percentage point increase in impairments and other operating items, partially offset by a 0.1 percentage point decrease in depreciation expense.

Interest Expense.  Interest expense increased $4.4 million, or 11.7%, to $42.4 million for the three months ended March 31, 2021, from $38.0 million for the three months ended March 31, 2020. The increase was primarily attributable to an increase of $3.0 million from the March 2020 issuance of our 2050 Senior Notes (as defined below), an increase of $2.0 million from higher net interest rates on borrowings outstanding under our Credit Agreement due primarily to $600 million in interest rate swap agreements commencing in October 2020 at higher interest rates than $575 million in interest rate swap agreements which expired between September 2020 and October 2020, an increase of $0.9 million from the January 2020 issuance of our 2030 Senior Notes (as defined below) and $0.6 million of other net increases, partially offset by a decrease of $2.1 million due to a reduction in the average borrowings outstanding under our Credit Agreement.

Interest Income.  Interest income decreased $1.1 million to $1.1 million for the three months ended March 31, 2021, from $2.2 million for the three months ended March 31, 2020. The decrease was primarily attributable to lower reinvestment rates in the current period.

Other Income (Expense), Net.  Other income (expense), net increased $13.0 million, to an income total of $3.5 million for the three months ended March 31, 2021, from an expense total of $9.5 million for the three months ended March 31, 2020.

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Other income of $3.5 million recorded during the three months ended March 31, 2021 consisted of $1.2 million of income earned on investments purchased to fund our employee deferred compensation obligations, $1.2 million of adjustments to decrease certain accrued liabilities acquired in prior period acquisitions, an increase in foreign currency transaction gains of $0.7 million due to an increase in the value of the Canadian dollar and a $0.4 million increase in other net income sources.

Other expense of $9.5 million recorded during the three months ended March 31, 2020 consisted of $4.7 million of losses on investments purchased to fund our employee deferred compensation obligations, a $3.0 million adjustment to increase certain accrued liabilities acquired in the 2016 Progressive Waste acquisition and an increase in foreign currency transaction losses of $2.5 million due to a decrease in the value of the Canadian dollar, partially offset by a $0.7 million increase in other income sources.

Income Tax Provision.  Income taxes increased $11.6 million, or 36.4%, to $40.3 million for the three months ended March 31, 2021, from $28.7 million for the three months ended March 31, 2020. Our effective tax rate for the three months ended March 31, 2021 was 20.1%. Our effective tax rate for the three months ended March 31, 2020 was 16.7%.  

The income tax provision for the three months ended March 31, 2021 included a benefit of $2.0 million from share-based payment awards being recognized in the income statement when settled, as well as a portion of our internal financing being taxed at effective rates substantially lower than the U.S. federal statutory rate.

The income tax provision for the three months ended March 31, 2020 included a benefit of $5.1 million from share-based payment awards being recognized in the income statement when settled, as well as a portion of our internal financing being taxed at effective rates substantially lower than the U.S. federal statutory rate.

SEGMENT RESULTS

General

No single contract or customer accounted for more than 10% of our total revenues at the consolidated or reportable segment level during the periods presented. The following table disaggregates our revenue by service line for the periods indicated (dollars in thousands of U.S. dollars).

		Three Months Ended March 31,
	2021		2020
Commercial	$	426,395	$	416,507
Residential		400,819		365,731
Industrial and construction roll off		209,258		206,771
Total collection		1,036,472		989,009
Landfill		271,936		266,218
Transfer		189,323		180,765
Recycling		32,448		18,108
E&P		28,012		65,377
Intermodal and other		35,634		30,018
Intercompany		(197,883)		(197,091)
Total	$	1,395,942	$	1,352,404

Our Chief Operating Decision Maker evaluates operating segment profitability and determines resource allocations based on several factors, of which the primary financial measure is segment EBITDA. We define segment EBITDA as earnings before interest, taxes, depreciation, amortization, impairments and other operating items and other income (expense). Segment EBITDA is not a measure of operating income, operating performance or liquidity under GAAP and may not be comparable to similarly titled measures reported by other companies. Our management uses segment EBITDA in the evaluation of segment operating performance as it is a profit measure that is generally within the control of the operating segments.

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Prior to July 2020, we managed our operations through five geographic solid waste operating segments and our E&P segment, which were also our reportable segments. As of July 2020, our Chief Operating Decision Maker determined that the E&P and Southern operating segments met all of the aggregation criteria and eliminated our E&P segment by combining all operations of the E&P segment into the Southern segment. After giving effect to this combination, our reportable segments consist of our five geographic operating segments and no longer include a separate E&P segment. Each operating segment is responsible for managing several vertically integrated operations, which are comprised of districts. The segment information presented herein reflects the realignment of these districts.  Segment results for the 2020 periods reflected in this report have been reclassified to reflect the realignment of our reportable segments for comparison with the same period in 2021.

At March 31, 2021, under the current orientation, our Southern segment services customers located in Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, New Mexico, North Dakota, southern Oklahoma, western Tennessee, Texas, Wyoming and along the Gulf of Mexico; our Eastern segment services customers located in Delaware, northern Illinois, Kentucky, Maryland, Massachusetts, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, South Carolina, eastern Tennessee, Vermont, Virginia and Wisconsin; our Western segment services customers located in Alaska, California, Idaho, Montana, Nevada, Oregon, Washington and western Wyoming; our Central segment services customers located in Arizona, Colorado, southern Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, New Mexico, Oklahoma, South Dakota, western Texas, Utah and eastern Wyoming; and our Canada segment services customers located in the state of Michigan and in the provinces of Alberta, British Columbia, Manitoba, Ontario, Québec and Saskatchewan.

Revenues, net of intercompany eliminations, for our reportable segments are shown in the following table in thousands of U.S. dollars and as a percentage of total revenues for the periods indicated:

	Three Months Ended March 31,
	2021				2020
Southern	$	338,161	24.2	%	$	369,256	27.3	%
Eastern		336,461	24.1			332,202	24.6
Western		297,004	21.3			271,981	20.1
Central		235,386	16.9			208,542	15.4
Canada		188,930	13.5			170,423	12.6
	$	1,395,942	100.0	%	$	1,352,404	100.0	%

Segment EBITDA for our reportable segments is shown in the following table in thousands of U.S. dollars and as a percentage of segment revenues for the periods indicated:

	Three Months Ended March 31,
	2021				2020
Western	$	93,825	31.6	%	$	81,029	29.8	%
Southern		93,424	27.6	%		106,319	28.8	%
Eastern		89,121	26.5	%		84,662	25.5	%
Central		79,040	33.6	%		73,151	35.1	%
Canada		73,940	39.1	%		59,398	34.9	%
Corporate(a)		(750)	—			(3,631)	—
	$	428,600	30.7	%	$	400,928	29.6	%

(a) The majority of Corporate expenses are allocated to the five operating segments.  Direct acquisition expenses, expenses associated with common shares held in the deferred compensation plan exchanged for other investment options and share-based compensation expenses associated with Progressive Waste share-based grants outstanding at June 1, 2016 that were continued by the Company are not allocated to the five operating segments and comprise the net EBITDA for our Corporate segment for the periods presented.

A reconciliation of segment EBITDA to Income before income tax provision is included in Note 10 to our Condensed Consolidated Financial Statements included in Part 1, Item 1 of this report.

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Significant changes in revenue and segment EBITDA for our reportable segments for the three month periods ended March 31, 2021, compared to the three month periods ended March 31, 2020, are discussed below:

Segment Revenue

Revenue in our Southern segment decreased $31.1 million, or 8.4%, to $338.2 million for the three months ended March 31, 2021, from $369.3 million for the three months ended March 31, 2020. The components of the decrease consisted of a decline in revenue at our E&P operations of $34.3 million, partially offset by an increase in revenue at our solid waste operations of $3.2 million. The $34.3 million decrease in revenue at our E&P operations was attributable to decreases in the demand for crude oil as a result of economic disruptions from the COVID-19 pandemic resulting in a drop in the value of crude oil, decreases in drilling and production activity levels and decreases in overall demand for our E&P waste services. The components of the $3.2 million increase in revenue at our solid waste operations consisted of net price increases of $13.5 million, higher prices for old corrugated cardboard and other paper products contributing to a $1.6 million increase in sales from recyclable commodities and other revenue increases of $0.3 million, partially offset by solid waste volume decreases of $10.4 million attributable primarily to COVID-19-related economic disruptions driving declines in commercial collection, roll off collection and municipal solid waste landfill volumes and net revenue reductions from divestitures closed subsequent to March 31, 2020 of $1.8 million.

Revenue in our Eastern segment increased $4.3 million, or 1.3%, to $336.5 million for the three months ended March 31, 2021, from $332.2 million for the three months ended March 31, 2020. The components of the increase consisted of net price increases of $13.2 million, net revenue growth from acquisitions closed subsequent to the three months ended March 31, 2020 of $9.6 million and higher prices for old corrugated cardboard and other paper products contributing to a $5.6 million increase in sales from recyclable commodities, partially offset by solid waste volume decreases of $24.1 million attributable primarily to COVID-19-related economic disruptions in our Northeastern markets driving declines in commercial collection, roll off collection, transfer station and landfill volumes.

Revenue in our Western segment increased $25.0 million, or 9.2%, to $297.0 million for the three months ended March 31, 2021, from $272.0 million for the three months ended March 31, 2020. The components of the increase consisted of solid waste volume increases of $9.8 million attributable to increased residential collection, transfer station and landfill municipal solid waste volumes, net revenue growth from acquisitions closed subsequent to the three months ended March 31, 2020 of $8.5 million, net price increases of $7.0 million and recyclable commodity revenue increases of $1.8 million due primarily to higher prices for old corrugated cardboard and higher volumes collected from residential recycling customers, partially offset by intermodal revenue decreases of $2.1 million due primarily to customer losses resulting in a reduction in intermodal cargo volumes.

Revenue in our Central segment increased $26.9 million, or 12.9%, to $235.4 million for the three months ended March 31, 2021, from $208.5 million for the three months ended March 31, 2020. The components of the increase consisted of revenue growth from acquisitions closed subsequent to the three months ended March 31, 2020 of $25.2 million, net price increases of $9.4 million and other revenue increases of $0.2 million, partially offset by solid waste volume decreases of $6.5 million due to the impact of COVID-19-related economic disruptions driving decreases in roll off collection and landfill municipal solid waste volumes and net revenue reductions from divestitures closed subsequent to March 31, 2020 of $1.4 million.

Revenue in our Canada segment increased $18.5 million, or 10.9%, to $188.9 million for the three months ended March 31, 2021, from $170.4 million for the three months ended March 31, 2020. The components of the increase consisted of $10.3 million resulting from a higher average foreign currency exchange rate in effect during the comparable reporting periods, net price increases of $9.2 million, $6.0 million resulting from higher prices for renewable energy credits associated with the generation of landfill gas, recyclable commodity revenue increases of $2.0 million due primarily to higher prices for old corrugated cardboard and higher volumes collected from residential recycling customers and other revenue increases of $0.3 million, partially offset by solid waste volume decreases of $9.3 million due to the net impact of COVID-19-related economic disruptions driving decreases in commercial collection, roll off and transfer station volumes.

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Segment EBITDA

Segment EBITDA in our Western segment increased $12.8 million, or 15.8%, to $93.8 million for the three months ended March 31, 2021, from $81.0 million for the three months ended March 31, 2020. The increase was due primarily to an increase in revenues of $25.0 million, a decrease in intermodal rail expenses of $1.8 million due to customer losses resulting in a reduction in cargo volume, a collective decrease in travel, meeting, training, and community activity expenses of $0.9 million due to shelter at home and other restrictions on our employees due to the COVID-19 pandemic resulting in the cancellation of non-essential off-site activities, a decrease in expenses for auto and workers’ compensation claims of $0.9 million due primarily to adjustments recorded in the current year period to decrease projected losses on outstanding claims originally recorded prior to 2021 and a decrease in expenses for processing recyclable commodities of $0.8 million due to increased recyclable commodity values resulting in price reductions charged by third-party recycling processors, partially offset by a net $6.3 million increase in cost of operations and SG&A expenses attributable to acquired operations, an increase in corporate overhead expense allocations of $3.7 million due to an increase in the overhead allocation rate resulting from an increase in corporate expenses qualifying for allocation, an increase in labor expenses of $1.9 million due primarily to employee pay increases exceeding the benefit in the current year period of one less calendar and business day due to leap year occurring in the prior year period, an increase in third party disposal expenses of $1.7 million due primarily to increased residential collection volumes requiring disposal at third party facilities, an increase in third-party trucking and transportation expenses of $1.2 million due primarily to higher residential collection tonnage increasing transfer station volumes and landfill volumes in certain markets that require transportation services to our disposal sites, an increase in employee medical benefits expenses of $1.0 million due to an increase in medical visits and other expense increases of $0.8 million.

Segment EBITDA in our Southern segment decreased $12.9 million, or 12.1%, to $93.4 million for the three months ended March 31, 2021, from $106.3 million for the three months ended March 31, 2020. The decrease was due to a decline in E&P revenues of $34.3 million, an increase in corporate overhead expense allocations to our solid waste operations of $3.5 million due to an increase in the overhead allocation rate resulting from an increase in corporate expenses qualifying for allocation, an increase in subcontracted hauling services at our solid waste operations of $2.7 million due to outsourcing the servicing of certain non-strategic contracts and commercial collection customers to third party haulers, an increase in employee medical benefits expenses of $1.4 million due to an increase in medical visits and a decrease to EBITDA of $0.9 million from operations disposed of subsequent to the three months ended March 31, 2020, partially offset by a decrease in expenses for auto and workers’ compensation claims of $6.4 million at our solid waste operations due primarily to higher claims severity in the prior year period and adjustments recorded in the current year period to decrease projected losses on outstanding claims originally recorded prior to 2021, an increase in revenues at our solid waste operations of $5.0 million from organic growth and acquisitions, a decrease in labor expenses of $2.3 million due primarily to one less calendar and business day in the current year period due to leap year in the prior year period and a decrease in employee hours worked due to commercial and roll off collection volume declines, a decrease in third party disposal expenses at our solid waste operations of $1.7 million due primarily to declines in commercial and roll off collection volumes, a collective decrease in travel, meeting, training, and community activity expenses at our solid waste operations of $1.0 million due to shelter at home and other restrictions on our employees due to the COVID-19 pandemic resulting in the cancellation of non-essential off-site activities, a decrease in fuel expense at our solid waste operations of $0.9 million due to declines in the volume of fuel used in our operations, a net $1.2 million decrease in all other expenses at our solid waste operations and the following expense decreases at our E&P operations which were directly attributable to the decline in E&P volumes and corresponding decline in E&P revenues: a decrease in labor expenses of $3.0 million, a decrease in operating activities outsourced to third-parties of $2.1 million, a decrease in equipment and property repair and maintenance expenses of $2.1 million, a decrease in corporate overhead expense allocations of $0.7 million as the calculation of the overhead allocation rate from corporate is based upon revenues, a decrease in equipment rental expenses of $0.6 million, a decrease in fuel expense of $0.5 million, a decrease in royalty expenses paid on revenues of $0.5 million, a decrease in travel, meetings and training expenses of $0.5 million, a decrease in third-party trucking and transportation services of $0.4 million, a decrease in landfill operating supplies of $0.4 million and $0.6 million of other net expense decreases.

Segment EBITDA in our Eastern segment increased $4.4 million, or 5.3%, to $89.1 million for the three months ended March 31, 2021, from $84.7 million for the three months ended March 31, 2020. The increase was due primarily to an increase in revenues of $4.3 million, a decrease in third-party trucking and transportation expenses of $1.7 million attributable to declines in commercial and roll off collection volumes requiring third-party transportation services, a

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decrease in labor expenses of $1.5 million due to lower headcount resulting from reductions in the number of routes needed to service our collection customers, a decrease in truck, container, equipment and facility maintenance and repair expenses of $1.5 million due to a decrease in the number of routed vehicles and reductions in equipment operating hours, a decrease in expenses for uncollectible accounts receivable of $1.4 million due primarily to collections in the current period of customer accounts deemed uncollectible in prior periods, a decrease in leachate disposal expenses of $1.1 million due to increased on-site treatment of leachate and the prior year period incurring higher costs to dispose of leachate in newly constructed landfill cells, a decrease in expenses for auto and workers’ compensation claims of $1.0 million due primarily to adjustments recorded in the current year period to decrease projected losses on outstanding claims originally recorded prior to 2021, a decrease in expenses for processing recyclable commodities of $0.9 million due to declines in commercial recycling volumes, a decrease in fuel expense of $0.7 million due to reductions in collection routes and equipment hours operated resulting in declines in the volume of fuel used in our operations and a collective decrease in travel, meeting, training, and community activity expenses of $0.5 million due to shelter at home and other restrictions on our employees due to the COVID-19 pandemic resulting in the cancellation of non-essential off-site activities, partially offset by a net $5.0 million increase in cost of operations and SG&A expenses attributable to acquired operations, an increase in corporate overhead expense allocations of $3.9 million due to an increase in the overhead allocation rate resulting from an increase in corporate expenses qualifying for allocation, an increase in employee medical benefits expenses of $1.1 million due to an increase in medical visits and other expense increases of $0.2 million.

Segment EBITDA in our Central segment increased $5.8 million, or 8.0%, to $79.0 million for the three months ended March 31, 2021, from $73.2 million for the three months ended March 31, 2020. The increase was due primarily to an increase in revenues of $28.3 million from organic growth and acquisitions and a collective decrease in travel, meeting, training, and community activity expenses of $0.5 million due to shelter at home and other restrictions on our employees due to the COVID-19 pandemic resulting in the cancellation of non-essential off-site activities, partially offset by a net $15.7 million increase in cost of operations and SG&A expenses attributable to acquired operations, an increase in corporate overhead expense allocations of $3.2 million due to an increase in the overhead allocation rate resulting from an increase in corporate expenses qualifying for allocation, an increase in labor expenses of $1.5 million due primarily to employee pay increases exceeding the benefit in the current year period of one less calendar and business day due to leap year occurring in the prior year period, an increase in employee medical benefits expenses of $1.1 million due to an increase in medical visits, an increase in expenses for uncollectible accounts receivable of $0.9 million due primarily to the prior period benefiting from the collection of certain accounts previously deemed uncollectible and other expense increases of $0.6 million.

Segment EBITDA in our Canada segment increased $14.5 million, or 24.5%, to $73.9 million for the three months ended March 31, 2021, from $59.4 million for the three months ended March 31, 2020. The increase was comprised of an increase of $10.8 million assuming foreign currency parity during the comparable reporting periods and an increase of $3.7 million from a higher average foreign currency exchange rate in effect during the comparable reporting periods. The $10.8 million increase, which assumes foreign currency parity, was due primarily to an increase in revenues of $8.2 million, a decrease in third-party disposal expenses of $1.4 million attributable to declines in commercial and roll off collection volumes requiring disposal at third-party locations, a decrease in expenses for uncollectible accounts receivable of $0.8 million due primarily to collections in the current period of customer accounts deemed uncollectible in prior periods and a collective decrease in travel, meeting, training, and community activity expenses of $0.4 million due to shelter at home and other restrictions on our employees due to the COVID-19 pandemic resulting in the cancellation of non-essential off-site activities.

Segment EBITDA at Corporate increased $2.9 million, to a loss of $0.7 million for the three months ended March 31, 2021, from a loss of $3.6 million for the three months ended March 31, 2020. The increase was due to an increase in corporate overhead allocated through charges to our segments of $13.9 million due to an increase in expenses qualifying for allocation, a decrease in equity-based compensation expenses of $3.4 million associated with an adjustment during the prior year period of our common shares held in our deferred compensation plan by certain key executives to fair value as a result of the shares being exchanged for other investment options, a collective decrease in travel, meeting, training and community activity expenses of $2.2 million due to shelter at home and other restrictions on our employees due to the COVID-19 pandemic resulting in the cancellation of non-essential off-site activities, a decrease in direct acquisition expenses of $0.6 million due to a decrease in acquisition activity in the comparable periods and a decrease in equity-compensation expenses of $0.6 million due primarily to a decrease in the amount of performance-based restricted share

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units granted in 2019 and 2020 estimated to ultimately vest based on the achievement of required financial performance results, partially offset by an increase in accrued cash incentive compensation expense to our management and non-management employees of $8.5 million, an increase in deferred compensation expenses of $5.7 million as a result of decreases in the market value of investments to which employee deferred compensation liability balances are tracked, an increase in professional fees of $1.8 million due primarily to adjustments recorded during the prior year period to reduce estimated accrued liabilities associated with unbilled legal services, an increase in share-based compensation expenses of $1.2 million due primarily to increased average share price values in the current period for equity awards accounted for as liabilities that were granted to employees of Progressive Waste prior to June 1, 2016 which are subject to valuation adjustments each period based on changes in fair value and $0.6 million of other net expense increases.

LIQUIDITY AND CAPITAL RESOURCES

The following table sets forth certain cash flow information for the three months ended March 31, 2021 and 2020 (in thousands of U.S. dollars):

	Three Months Ended
	March 31,
	2021		2020
Net cash provided by operating activities	$	400,396	$	369,586
Net cash used in investing activities		(100,553)		(133,626)
Net cash provided by (used in) financing activities		(165,482)		627,389
Effect of exchange rate changes on cash, cash equivalents and restricted cash		403		(2,364)
Net increase in cash, cash equivalents and restricted cash		134,764		860,985
Cash, cash equivalents and restricted cash at beginning of period		714,389		423,221
Cash, cash equivalents and restricted cash at end of period	$	849,153	$	1,284,206

Operating Activities Cash Flows

For the three months ended March 31, 2021, net cash provided by operating activities was $400.4 million. For the three months ended March 31, 2020, net cash provided by operating activities was $369.6 million. The $30.8 million increase was due primarily to the following:

1) Increase in earnings — Our increase in net cash provided by operating activities was favorably impacted by $21.6 million from an increase in net income, excluding depreciation, amortization of intangibles,  share-based compensation, adjustments to and payments of contingent consideration recorded in earnings and loss on disposal of assets and impairments, due primarily to price increases, earnings from acquisitions closed subsequent to the three months ended March 31, 2020, earnings generated from the increased sales of recyclable commodities and renewal energy credits associated with the generation of landfill gas and an increase in the average Canadian dollar to U.S. dollar currency exchange rate offsetting a decline in earnings at our E&P operations, as well as solid waste volume losses resulting from the COVID-19 pandemic.

2) Other long-term liabilities — Our increase in net cash provided by operating activities was favorably impacted by $19.3 million from other long-term liabilities, as changes in other long-term liabilities resulted in an increase to operating cash flows of $6.1 million for the three months ended March 31, 2021, compared to a decrease to operating cash flows of $13.2 million for the three months ended March 31, 2020. The increase for the three months ended March 31, 2021 was primarily attributable to the receipt of funds associated with the eminent domain purchase of an operating facility that will be replaced with a newly constructed facility in a future period. The decrease for the three months ended March 31, 2020 was primarily attributable to declines in our deferred compensation liabilities due to distributions and the cash settlement of equity awards accounted for as liabilities that were granted to employees of Progressive Waste prior to June 1, 2016.

3) Prepaid expenses — Our increase in net cash provided by operating activities was favorably impacted by $15.7 million from prepaid expenses due primarily to a decrease in prepaid insurance and prepaid vendor payments.  Our prepaid expenses at March 31, 2021 include $49.7 million of prepaid income taxes.

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4) Deferred revenue — Our increase in net cash provided by operating activities was favorably impacted by $9.8 million from deferred revenue as changes in deferred revenue resulted in an increase to operating cash flows of $8.9 million for the three months ended March 31, 2021, compared to a decrease to operating cash flows of $0.9 million for the three months ended March 31, 2020. During the three months ended March 31, 2021, deferred revenue increased due to price increases on our advanced billed residential and commercial collection services, the timing of bi-monthly advance service billings and a landfill in our Southern segment receiving a $3.3 million advance payment for future disposal services. During the three months ended March 31, 2020, our deferred revenue decreased due primarily to commercial collection customer closures resulting from the COVID-19 pandemic that began in March 2020 which reduced the amount of advance service billings sent to our customers.

5) Deferred income taxes — Our increase in net cash provided by operating activities was unfavorably impacted by $14.9 million from deferred income taxes as changes in deferred income taxes resulted in an increase to operating cash flows of $8.4 million for the three months ended March 31, 2021, compared to an increase to operating cash flows of $23.3 million for the three months ended March 31, 2020. The higher increase in deferred taxes in the prior year period was attributable to increased capital expenditures providing tax benefits resulting from accelerated tax depreciation.

6) Accounts payable and accrued liabilities — Our increase in net cash provided by operating activities was unfavorably impacted by $10.8 million from accounts payable and accrued liabilities due primarily to the timing of interest payments and payroll cycles.

As of March 31, 2021, we had a working capital surplus of $397.1 million, including cash and equivalents of $743.5 million.  Our working capital surplus increased $17.5 million from a working capital surplus of $379.6 million at December 31, 2020 including cash and equivalents of $617.3 million, due primarily to the impact of increased cash balances, decreased accounts payable and decreased book overdraft being partially offset by an increase in the current portion of notes payable, higher deferred revenue and a reduction in accounts receivable. To date, we have experienced no loss or lack of access to our cash and equivalents; however, we can provide no assurances that access to our cash and equivalents will not be impacted by adverse conditions in the financial markets.  Our strategy in managing our working capital is generally to apply the cash generated from our operations that remains after satisfying our working capital and capital expenditure requirements, along with share repurchase and dividend programs, to reduce the unhedged portion of our indebtedness under our Credit Agreement and to minimize our cash balances.

Investing Activities Cash Flows

Net cash used in investing activities decreased $33.0 million to $100.6 million for the three months ended March 31, 2021, from $133.6 million for the three months ended March 31, 2020. The significant components of the decrease included the following:

1) A decrease in capital expenditures of $41.0 million due to decreases in vehicles for our collection operations and landfill site costs; less

2) An increase in cash paid for acquisitions of $2.6 million.

Financing Activities Cash Flows

Net cash used in financing activities increased $792.9 million to net cash used in financing activities of $165.5 million for the three months ended March 31, 2021, from net cash provided by financing activities of $627.4 million for the three months ended March 31, 2020. The significant components of the increase included the following:

1) An increase from the net change in long-term borrowings of $825.6 million (long-term borrowings decreased $5.4 million during the three months ended March 31, 2021 and increased $820.2 million during the three months ended March 31, 2020) due primarily to maintaining a portion of the proceeds from our 2050 Senior Notes offering in March 2020 in cash and borrowing on our credit facility in March 2020 to provide us with additional available cash reserves;

2) An increase in book overdraft of $13.0 million due primarily to maintaining additional funds in our bank accounts that are used to fund outstanding checks; and

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3) An increase in cash dividends paid of $5.9 million due primarily to an increase in our quarterly dividend rate for the three months ended March 31, 2021 to $0.205 per share, from $0.185 per share for the three months ended March 31, 2020; less

4) A decrease in payments to repurchase our common shares of $39.7 million due to fewer shares repurchased;

5) A decrease in debt issuance costs of $10.9 million due to the prior year period including costs incurred for the issuance of our 2030 Senior Notes and 2050 Senior Notes; and

6) A decrease in tax withholdings related to net share settlements of equity-based compensation of $4.6 million due to a decrease in the value of equity-based compensation awards vesting.

Our business is capital intensive. Our capital requirements include acquisitions and capital expenditures for landfill cell construction, landfill development, landfill closure activities and intermodal facility construction in the future.

On July 23, 2020, our Board of Directors approved, subject to receipt of regulatory approvals, the annual renewal of our normal course issuer bid, or the NCIB, to purchase up to 13,144,773 of our common shares during the period of August 10, 2020 to August 9, 2021 or until such earlier time as the NCIB is completed or terminated at our option. Shareholders may obtain a copy of our TSX Form 12 – Notice of Intention to Make a Normal Course Issuer Bid, without charge, by request directed to our Executive Vice President and Chief Financial Officer at (832) 442-2200.  The timing and amounts of any repurchases pursuant to the NCIB will depend on many factors, including our capital structure, the market price of our common shares and overall market conditions. All common shares purchased under the NCIB will be immediately cancelled following their repurchase.  Information regarding our NCIB can be found under the “Shareholders’ Equity” section in Note 16 to the Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q and is incorporated herein by reference.

Our Board of Directors authorized the initiation of a quarterly cash dividend in October 2010 and has increased it on an annual basis. In October 2020, our Board of Directors authorized an increase to our regular quarterly cash dividend of $0.02, from $0.185 to $0.205 per share.  Cash dividends of $53.9 million and $48.0 million were paid during the three months ended March 31, 2021 and 2020, respectively. We cannot assure you as to the amounts or timing of future dividends.

We made $96.8 million in capital expenditures for property and equipment during the three months ended March 31, 2021, and we expect to make total capital expenditures for property and equipment of approximately $625 million in 2021.  We have funded and intend to fund the balance of our planned 2021 capital expenditures principally through cash on hand, internally generated funds and borrowings under our Credit Agreement. In addition, we may make substantial additional capital expenditures in acquiring land and solid waste businesses. If we acquire additional landfill disposal facilities, we may also have to make significant expenditures to bring them into compliance with applicable regulatory requirements, obtain permits or expand our available disposal capacity. We cannot currently determine the amount of these expenditures because they will depend on the number, nature, condition and permitted status of any acquired landfill disposal facilities. We believe that our cash and equivalents, Credit Agreement and the funds we expect to generate from operations will provide adequate cash to fund our working capital and other cash needs for the foreseeable future. However, disruptions in the capital and credit markets could adversely affect our ability to draw on our Credit Agreement or raise other capital. Our access to funds under the Credit Agreement is dependent on the ability of the banks that are parties to the agreement to meet their funding commitments. Those banks may not be able to meet their funding commitments if they experience shortages of capital and liquidity or if they experience excessive volumes of borrowing requests within a short period of time.

As of March 31, 2021, $650.0 million under the term loan and $204.0 million under the revolving credit facility were outstanding under our Credit Agreement, exclusive of outstanding standby letters of credit of $118.4 million. We also have issued $6.8 million of letters of credit at March 31, 2021 under facilities other than the Credit Agreement.  Our Credit Agreement matures in March 2023.

We are a well-known seasoned issuer with an effective shelf registration statement on Form S-3 filed with the SEC in May 2018, which registers an unspecified amount of debt securities, including debentures, notes or other types of debt.   In the future, we may issue debt securities under our shelf registration statement or in private placements from time to time on an opportunistic basis, based on market conditions and available pricing. Unless otherwise indicated in the relevant

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offering documents, we expect to use the proceeds from any such offerings for general corporate purposes, including repaying, redeeming or repurchasing debt, acquiring additional assets or businesses, capital expenditures and increasing our working capital.

As of March 31, 2021, we had the following contractual obligations:

	Payments Due by Period
	(amounts in thousands of U.S. dollars)
			Less Than		1 to 3				Over 5
Recorded Obligations	Total		1 Year		Years		3 to 5 Years		Years
Long-term debt	$	4,744,690	$	105,386	$	1,340,226	$	536,585	$	2,762,493
Cash interest payments	$	1,217,092	$	160,761	$	268,554	$	203,981	$	583,796
Contingent consideration	$	86,498	$	42,360	$	5,724	$	3,224	$	35,190
Operating leases	$	213,877	$	28,245	$	67,921	$	43,115	$	74,596
Final capping, closure and post-closure	$	1,500,547	$	16,726	$	40,739	$	9,541	$	1,433,541

____________________

Long-term debt payments include:

1) $204.0 million in principal payments due March 2023 related to our revolving credit facility under our Credit Agreement.  We may elect to draw amounts on our Credit Agreement in U.S. dollar LIBOR rate loans, U.S. dollar base rate loans, Canadian-based bankers’ acceptances, and Canadian dollar prime rate loans.  At March 31, 2021, $200.0 million of the outstanding borrowings drawn under the revolving credit facility were in U.S. LIBOR rate loans, which bear interest at the LIBOR rate plus the applicable margin (for a total rate of 1.31% on such date) and $4.0 million of the outstanding borrowings drawn under the revolving credit facility were in Canadian-based bankers’ acceptances, which bear interest at the Canadian Dollar Offered Rate plus the applicable acceptance fee (for a total rate of 1.61% on such date).

2) $650.0 million in principal payments due March 2023 related to our term loan under our Credit Agreement. Outstanding amounts on the term loan can be either base rate loans or LIBOR loans. At March 31, 2021, all amounts outstanding under the term loan were in LIBOR loans which bear interest at the LIBOR rate plus the applicable margin (for a total rate of 1.31% on such date).

3) $100.0 million in principal payments due 2021 related to our 2021 Senior Notes. The 2021 Senior Notes bear interest at a rate of 4.64%.  We redeemed the 2021 Senior Notes on April 1, 2021.

4) $150.0 million in principal payments due 2021 related to our New 2021 Senior Notes. The New 2021 Senior Notes bear interest at a rate of 2.39%.  We have recorded this obligation in the payments due in 1 to 3 years category in the table above as we have the intent and ability to redeem the New 2021 Senior Notes on June 1, 2021 using borrowings under our Credit Agreement.

5) $125.0 million in principal payments due 2022 related to our 2022 Senior Notes. The 2022 Senior Notes bear interest at a rate of 3.09%.

6) $200.0 million in principal payments due 2023 related to our 2023 Senior Notes. The 2023 Senior Notes bear interest at a rate of 2.75%.

7) $150.0 million in principal payments due 2024 related to our 2024 Senior Notes. The 2024 Senior Notes bear interest at a rate of 3.24%.

8) $375.0 million in principal payments due 2025 related to our 2025 Senior Notes. The 2025 Senior Notes bear interest at a rate of 3.41%.

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9) $400.0 million in principal payments due 2026 related to our 2026 Senior Notes. The 2026 Senior Notes bear interest at a rate of 3.03%.

10) $250.0 million in principal payments due 2027 related to our 2027 Senior Notes. The 2027 Senior Notes bear interest at a rate of 3.49%.

11) $500.0 million in principal payments due 2028 related to our 2028 Senior Notes. The 2028 Senior Notes bear interest at a rate of 4.25%.

12) $500.0 million in principal payments due 2029 related to our 2029 Senior Notes. The 2029 Senior Notes bear interest at a rate of 3.50%.

13) $600.0 million in principal payments due 2030 related to our 2030 Senior Notes. The 2030 Senior Notes bear interest at a rate of 2.60%.

14) $500.0 million in principal payments due 2050 related to our 2050 Senior Notes. The 2050 Senior Notes bear interest at a rate of 3.05%.

15) $38.0 million in principal payments related to our notes payable to sellers and other third parties. Our notes payable to sellers and other third parties bear interest at rates between 2.42% and 10.35% at March 31, 2021, and have maturity dates ranging from 2028 to 2036.

16) $9.8 million in principal payments related to our financing leases.  Our financing leases bear interest at a rate of 1.89% at March, 31 2021, and have a lease expiration date of 2026.

The following assumptions were made in calculating cash interest payments:

1) We calculated cash interest payments on the Credit Agreement using the LIBOR rate plus the applicable LIBOR margin, the base rate plus the applicable base rate margin, the Canadian Dollar Offered Rate plus the applicable acceptance fee and the Canadian prime rate plus the applicable prime rate margin at March 31, 2021. We assumed the Credit Agreement is paid off when it matures in March 2023.

2) We calculated cash interest payments on our interest rate swaps using the stated interest rate in the swap agreement less the LIBOR rate through the earlier expiration of the term of the swaps or the term of the credit facility.

Contingent consideration payments include $67.0 million recorded as liabilities in our Condensed Consolidated Financial Statements at March 31, 2021, and $19.5 million of future interest accretion on the recorded obligations.

We are party to operating lease agreements and finance leases. These lease agreements are established in the ordinary course of our business and are designed to provide us with access to facilities and equipment at competitive, market-driven prices.

The estimated final capping, closure and post-closure expenditures presented above are in current dollars.

	Amount of Commitment Expiration Per Period
	(amounts in thousands of U.S. dollars)
			Less Than		1 to 3		3 to 5		Over 5
Unrecorded Obligations(1)	Total		1 Year		Years		Years		Years
Unconditional purchase obligations	$	116,619	$	82,673	$	33,946	$	—	$	—

____________________

(1) We are party to unconditional purchase obligations. These purchase obligations are established in the ordinary course of our business and are designed to provide us with access to products at competitive, market-driven prices. At March 31, 2021, our unconditional purchase obligations consisted of multiple fixed-price fuel purchase contracts under which we have 46.7 million gallons remaining to be purchased for a total of $116.6 million. The current fuel purchase contracts expire on or before

45

December 31, 2023. These arrangements have not materially affected our financial position, results of operations or liquidity during the three months ended March 31, 2021, nor are they expected to have a material impact on our future financial position, results of operations or liquidity.

We have obtained financial surety bonds, primarily to support our financial assurance needs and landfill and E&P operations. We provided customers and various regulatory authorities with surety bonds in the aggregate amounts of approximately $1.242 billion and $1.210 billion at March 31, 2021 and December 31, 2020, respectively. These arrangements have not materially affected our financial position, results of operations or liquidity during the three months ended March 31, 2021, nor are they expected to have a material impact on our future financial position, results of operations or liquidity.

From time to time, we evaluate our existing operations and their strategic importance to us. If we determine that a given operating unit does not have future strategic importance, we may sell or otherwise dispose of those operations. Although we believe our reporting units would not be impaired by such dispositions, we could incur losses on them.

The disposal tonnage that we received in the three month periods ended March 31, 2021 and 2020, at all of our landfills during the respective period, is shown below (tons in thousands):

	Three Months Ended March 31,
	2021		2020
	Number	Total	Number	Total
	of Sites	Tons	of Sites	Tons
Owned operational landfills and landfills operated under life-of-site agreements	87	10,189	88	10,843
Operated landfills	4	127	4	133
	91	10,316	92	10,976

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NON-GAAP FINANCIAL MEASURES

Adjusted Free Cash Flow

We present adjusted free cash flow, a non-GAAP financial measure, supplementally because it is widely used by investors as a valuation and liquidity measure in the solid waste industry. Management uses adjusted free cash flow as one of the principal measures to evaluate and monitor the ongoing financial performance of our operations. We define adjusted free cash flow as net cash provided by operating activities, plus or minus change in book overdraft, plus proceeds from disposal of assets, less capital expenditures for property and equipment and distributions to noncontrolling interests. We further adjust this calculation to exclude the effects of items management believes impact the ability to assess the operating performance of our business. This measure is not a substitute for, and should be used in conjunction with, GAAP liquidity or financial measures. Other companies may calculate adjusted free cash flow differently. Our adjusted free cash flow for the three month periods ended March 31, 2021 and 2020, are calculated as follows (amounts in thousands of U.S. dollars):

	Three Months Ended
	March 31,
	2021		2020
Net cash provided by operating activities	$	400,396	$	369,586
Less: Change in book overdraft		(16,849)		(3,848)
Plus: Proceeds from disposal of assets		2,080		3,499
Less: Capital expenditures for property and equipment		(96,793)		(137,781)
Adjustments:
Payment of contingent consideration recorded in earnings (a)		520		—
Transaction-related expenses (b)		526		1,146
Pre-existing Progressive Waste share-based grants (c)		97		6,440
Tax effect (d)		(188)		(3,318)
Adjusted free cash flow	$	289,789	$	235,724

____________________

(a) Reflects the addback of acquisition-related payments for contingent consideration that were recorded as expenses in earnings and as a component of cash flows from operating activities as the amounts paid exceeded the fair value of the contingent consideration recorded at the acquisition date.

(b) Reflects the addback of acquisition-related transaction costs.

(c) Reflects the cash settlement of pre-existing Progressive Waste share-based awards during the period.

(d) The aggregate tax effect of footnotes (a) through (c) is calculated based on the applied tax rates for the respective periods.

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Adjusted EBITDA

We present adjusted EBITDA, a non-GAAP financial measure, supplementally because it is widely used by investors as a performance and valuation measure in the solid waste industry. Management uses adjusted EBITDA as one of the principal measures to evaluate and monitor the ongoing financial performance of our operations. We define adjusted EBITDA as net income attributable to Waste Connections, plus or minus net income (loss) attributable to noncontrolling interests, plus income tax provision, plus interest expense, less interest income, plus depreciation and amortization expense, plus closure and post-closure accretion expense, plus or minus any loss or gain on impairments and other operating items, plus other expense, less other income. We further adjust this calculation to exclude the effects of other items management believes impact the ability to assess the operating performance of our business. This measure is not a substitute for, and should be used in conjunction with, GAAP financial measures. Other companies may calculate adjusted EBITDA differently. Our adjusted EBITDA for the three month periods ended March 31, 2021 and 2020, are calculated as follows (amounts in thousands of U.S. dollars):

	Three Months Ended
	March 31,
	2021		2020
Net income attributable to Waste Connections	$	160,309	$	143,035
Less: Net loss attributable to noncontrolling interests		(2)		(142)
Plus: Income tax provision		40,291		28,734
Plus: Interest expense		42,425		37,990
Less: Interest income		(1,103)		(2,175)
Plus: Depreciation and amortization		189,594		182,459
Plus: Closure and post-closure accretion		3,709		3,908
Plus: Impairments and other operating items		634		1,506
Plus (less): Other expense (income), net		(3,548)		9,521
Adjustments:
Plus: Transaction-related expenses (a)		526		1,146
Plus: Fair value changes to equity awards (b)		339		2,541
Adjusted EBITDA	$	433,174	$	408,523

____________________

(a) Reflects the addback of acquisition-related transaction costs.

(b) Reflects fair value accounting changes associated with certain equity awards.

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Adjusted Net Income Attributable to Waste Connections and Adjusted Net Income per Diluted Share Attributable to Waste Connections

We present adjusted net income attributable to Waste Connections and adjusted net income per diluted share attributable to Waste Connections, both non-GAAP financial measures, supplementally because they are widely used by investors as a valuation measure in the solid waste industry. Management uses adjusted net income attributable to Waste Connections and adjusted net income per diluted share attributable to Waste Connections as one of the principal measures to evaluate and monitor the ongoing financial performance of our operations. We provide adjusted net income attributable to Waste Connections to exclude the effects of items management believes impact the comparability of operating results between periods. Adjusted net income attributable to Waste Connections has limitations due to the fact that it excludes items that have an impact on our financial condition and results of operations. Adjusted net income attributable to Waste Connections and adjusted net income per diluted share attributable to Waste Connections are not a substitute for, and should be used in conjunction with, GAAP financial measures. Other companies may calculate these non-GAAP financial measures differently. Our adjusted net income attributable to Waste Connections and adjusted net income per diluted share attributable to Waste Connections for the three month periods ended March 31, 2021 and 2020, are calculated as follows (amounts in thousands of U.S. dollars, except per share amounts):

	Three Months Ended
	March 31,
	2021		2020
Reported net income attributable to Waste Connections	$	160,309	$	143,035
Adjustments:
Amortization of intangibles (a)		32,192		31,638
Impairments and other operating items (b)		634		1,506
Transaction-related expenses (c)		526		1,146
Fair value changes to equity awards (d)		339		2,541
Tax effect (e)		(8,543)		(9,304)
Adjusted net income attributable to Waste Connections	$	185,457	$	170,562
Diluted earnings per common share attributable to Waste Connections’ common shareholders:
Reported net income	$	0.61	$	0.54
Adjusted net income	$	0.70	$	0.65

____________________

(a) Reflects the elimination of the non-cash amortization of acquisition-related intangible assets.

(b) Reflects the addback of impairments and other operating items.

(c) Reflects the addback of acquisition-related transaction costs.

(d) Reflects fair value accounting changes associated with certain equity awards.

(e) The aggregate tax effect of the adjustments in footnotes (a) through (d) is calculated based on the applied tax rates for the respective periods.

INFLATION

Other than volatility in fuel prices, third party brokerage and labor costs in certain markets, inflation has not materially affected our operations in recent years. Consistent with industry practice, many of our contracts allow us to pass through certain costs to our customers, including increases in landfill tipping fees and, in some cases, fuel costs.  To the extent that there are decreases in fuel costs, in some cases, a portion of these reductions are passed through to customers in the form of lower fuel and material surcharges. Therefore, we believe that we should be able to increase prices to offset many cost increases that result from inflation in the ordinary course of business. However, competitive pressures or delays in the timing of rate increases under our contracts, particularly amid the economic impact of the COVID-19 pandemic, may require us to absorb at least part of these cost increases, especially if cost increases exceed the average rate of inflation. Management’s estimates associated with inflation have an impact on our accounting for landfill liabilities.

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SEASONALITY

Based on historic trends, excluding any impact from the COVID-19 pandemic or an economic recession, we would expect our operating results to vary seasonally, with revenues typically lowest in the first quarter, higher in the second and third quarters and lower in the fourth quarter than in the second and third quarters. This seasonality reflects (a) the lower volume of solid waste generated during the late fall, winter and early spring because of decreased construction and demolition activities during winter months in Canada and the U.S. and (b) reduced E&P activity during harsh weather conditions, with expected fluctuation due to such seasonality between our highest and lowest quarters of approximately 10%. In addition, some of our operating costs may be higher in the winter months. Adverse winter weather conditions slow waste collection activities, resulting in higher labor and operational costs. Greater precipitation in the winter increases the weight of collected municipal solid waste, resulting in higher disposal costs, which are calculated on a per ton basis.

Item 3.Quantitative and Qualitative Disclosures About Market Risk

In the normal course of business, we are exposed to market risk, including changes in interest rates and prices of certain commodities, and to a lesser extent, foreign currency exchange rate risks. We use hedge agreements to manage a portion of our risks related to interest rates and fuel prices. While we are exposed to credit risk in the event of non-performance by counterparties to our hedge agreements, in all cases such counterparties are highly rated financial institutions and we do not anticipate non-performance under current market conditions. We do not hold or issue derivative financial instruments for trading purposes. We monitor our hedge positions by regularly evaluating the positions at market and by performing sensitivity analyses over the unhedged fuel and variable rate debt positions.

At March 31, 2021, our derivative instruments included six interest rate swap agreements that effectively fix the interest rate on the applicable notional amounts of our variable rate debt as follows (dollars in thousands of U.S. dollars):

			Fixed		Variable
	Notional		Interest		Interest Rate		Expiration
Date Entered	Amount		Rate Paid*		Received	Effective Date	Date
August 2017	$	100,000	1.900	%	1-month LIBOR	July 2019	July 2022
August 2017	$	200,000	2.200	%	1-month LIBOR	October 2020	October 2025
August 2017	$	150,000	1.950	%	1-month LIBOR	February 2020	February 2023
June 2018	$	200,000	2.925	%	1-month LIBOR	October 2020	October 2025
June 2018	$	200,000	2.925	%	1-month LIBOR	October 2020	October 2025
December 2018	$	200,000	2.850	%	1-month LIBOR	July 2022	July 2027

____________________

* Plus applicable margin.

Under derivatives and hedging guidance, the interest rate swap agreements are considered cash flow hedges for a portion of our variable rate debt, and we apply hedge accounting to account for these instruments. The notional amounts and all other significant terms of the swap agreements are matched to the provisions and terms of the variable rate debt being hedged.

We have performed sensitivity analyses to determine how market rate changes will affect the fair value of our unhedged floating rate debt. Such an analysis is inherently limited in that it reflects a singular, hypothetical set of assumptions. Actual market movements may vary significantly from our assumptions. Fair value sensitivity is not necessarily indicative of the ultimate cash flow or earnings effect we would recognize from the assumed market rate movements. We are exposed to cash flow risk due to changes in interest rates with respect to the unhedged floating rate balances owed at March 31, 2021 and December 31, 2020, of $4.0 million and $3.7 million, respectively, including floating rate debt under our Credit Agreement. A one percentage point increase in interest rates on our variable-rate debt as of March 31, 2021 and December 31, 2020, would decrease our annual pre-tax income by approximately $0.1 million and $0.1 million, respectively. All of our remaining debt instruments are at fixed rates, or effectively fixed under the interest rate swap agreements described above; therefore, changes in market interest rates under these instruments would not significantly impact our cash flows or results of operations, subject to counterparty default risk.

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The market price of diesel fuel is unpredictable and can fluctuate significantly.  Because of the volume of fuel we purchase each year, a significant increase in the price of fuel could adversely affect our business and reduce our operating margins.  To manage a portion of this risk, we periodically enter into fuel hedge agreements related to forecasted diesel fuel purchases, and we also enter into fixed price fuel purchase contracts.  At March 31, 2021, we had no fuel hedge agreements in place; however, we have entered into fixed price fuel purchase contracts for 2021 as described below.

For the year ending December 31, 2021, we expect to purchase approximately 79.6 million gallons of fuel, of which 40.7 million gallons will be purchased at market prices and 38.9 million gallons will be purchased under our fixed price fuel purchase contracts. We have performed sensitivity analyses to determine how market rate changes will affect the fair value of our unhedged, market rate diesel fuel purchases.  Such an analysis is inherently limited in that it reflects a singular, hypothetical set of assumptions.  Actual market movements may vary significantly from our assumptions.  Fair value sensitivity is not necessarily indicative of the ultimate cash flow or earnings effect we would recognize from the assumed market rate movements.  During the nine month period of April 1, 2021 to December 31, 2021, we expect to purchase approximately 30.5 million gallons of fuel at market prices; therefore, a $0.10 per gallon increase in the price of fuel over the remaining nine months in 2021 would decrease our pre-tax income during this period by approximately $3.1 million.

We market a variety of recyclable materials, including compost, cardboard, mixed paper, plastic containers, glass bottles and ferrous and aluminum metals. We own and operate recycling operations and market collected recyclable materials to third parties for processing before resale. Where possible, to reduce our exposure to commodity price risk with respect to recycled materials, we have adopted a pricing strategy of charging collection and processing fees for recycling volume collected from third parties. In the event of a decline in recycled commodity prices, a 10% decrease in average recycled commodity prices from the average prices that were in effect during the three months ended March 31, 2021 and 2020, would have had a $3.1 million and $1.8 million impact on revenues for the three months ended March 31, 2021 and 2020, respectively.

We have operations in Canada and, where significant, we have quantified and described the impact of foreign currency translation on components of income, including operating revenue and operating costs. However, the impact of foreign currency has not materially affected our results of operations in 2020 or 2021. A $0.01 change in the Canadian dollar to U.S. dollar exchange rate would impact our annual revenue and EBITDA by approximately $10.1 million and $4.0 million, respectively.

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Item 4.Controls and Procedures

As required by Rule 13a-15(b) under the U.S. Securities Exchange Act of 1934, as amended, or the Exchange Act, we carried out an evaluation, under the supervision and with the participation of our management, including our President and Chief Executive Officer and our Executive Vice President and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as such term is defined in Rule 13a-15(e) under the Exchange Act) as of the end of the fiscal quarter covered by this Quarterly Report on Form 10-Q. In designing and evaluating the disclosure controls and procedures, our management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and our management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Based on this evaluation, our President and Chief Executive Officer and our Executive Vice President and Chief Financial Officer concluded as of March 31, 2021, that our disclosure controls and procedures were effective at the reasonable assurance level such that information required to be disclosed in our Exchange Act reports:  (1) is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms; and (2) is accumulated and communicated to our management, including our President and Chief Executive Officer and Executive Vice President and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

During the quarter ended March 31, 2021, there was no change in our internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II – OTHER INFORMATION

Item 1.Legal Proceedings

Information regarding our legal proceedings can be found in Note 17 of our Condensed Consolidated Financial Statements included in Part I, Item 1 of this report and is incorporated herein by reference.

Item 2.Unregistered Sales of Equity Securities and Use of Proceeds 

On July 23, 2020, our Board of Directors approved, subject to receipt of regulatory approvals, the annual renewal of our NCIB to purchase up to 13,144,773 of our common shares during the period of August 10, 2020 to August 9, 2021 or until such earlier time as the NCIB is completed or terminated at our option. The renewal followed the conclusion of our NCIB that expired August 7, 2020.  We received TSX approval for our annual renewal of the NCIB on August 5, 2020.  Under the NCIB, we may make share repurchases only in the open market, including on the NYSE, the TSX, and/or alternative Canadian trading systems, at the prevailing market price at the time of the transaction.  The timing and amounts of any repurchases pursuant to the NCIB will depend on many factors, including our capital structure, the market price of the common shares and overall market conditions.  All common shares purchased under the NCIB shall be immediately cancelled following their repurchase. As of March 31, 2021, we have repurchased 0.7 million of our common shares pursuant to the NCIB at an aggregate cost of $66.0 million, or an average price of $99.07 per share.  The table below reflects repurchases we made during the three months ended March 31, 2021 (in thousands of U.S. dollars, except share and per share amounts):

				Total Number of	Maximum Number
				Shares Purchased	of Shares that
	Total Number	Average		as Part of Publicly	May Yet Be
	of Shares	Price Paid		Announced	Purchased Under
Period	Purchased	Per Share (1)		Program	the Program
1/1/21 - 1/31/21	200,000	$	99.43	200,000	12,944,773
2/1/21 - 2/28/21	466,184	$	98.92	466,184	12,478,589
3/1/21 - 3/31/21	—	$	-	—	12,478,589
	666,184	$	99.07	666,184

(1) This amount represents the weighted average price paid per common share.  This price includes a per share commission paid for all repurchases. 

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Item 6.Exhibits

Exhibit Number	Description of Exhibits
3.1	Articles of Amendment (incorporated by reference to Exhibit 3.1 of the Registrant’s Form 8-K filed on May 26, 2017)
3.2	Articles of Amalgamation (incorporated by reference to Exhibit 3.2 of the Registrant’s Form 8-K filed on June 7, 2016)
3.3	Articles of Amendment (incorporated by reference to Exhibit 3.1 of the Registrant’s Form 8-K filed on June 7, 2016)
3.4	By-law No. 1 of the Registrant (incorporated by reference to Exhibit 3.3 of the Registrant’s Form 8-K filed on June 7, 2016)
31.1	Certification of Principal Executive Officer pursuant to Exchange Act Rules 13a-14(a)/15d-14(a)
31.2	Certification of Principal Financial Officer pursuant to Exchange Act Rules 13a-14(a)/15d-14(a)
32.1	Certification of Principal Executive Officer pursuant to 18 U.S.C. §1350
32.2	Certification of Principal Financial Officer pursuant to 18 U.S.C. §1350
101.INS	The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB	XBRL Taxonomy Extension Labels Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
104	Cover Page Interactive Data File – The cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	WASTE CONNECTIONS, INC.
Date: April 29, 2021	BY:	/s/ Worthing F. Jackman
		Worthing F. Jackman
		President and Chief Executive Officer
Date: April 29, 2021	BY:	/s/ Mary Anne Whitney
		Mary Anne Whitney
		Executive Vice President and Chief Financial Officer

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EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO EXCHANGE ACT RULE 13a-14(a) OR RULE 15d-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Worthing F. Jackman, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Waste Connections, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 29, 2021
	/s/ Worthing F. Jackman
	Worthing F. Jackman
	President and Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO EXCHANGE ACT RULE 13a-14(a) OR RULE 15d-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Mary Anne Whitney, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Waste Connections, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 29, 2021
	/s/ Mary Anne Whitney
	Mary Anne Whitney
	Executive Vice President and Chief Financial Officer (Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

(Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

I, Worthing F. Jackman, being the duly elected and acting President and Chief Executive Officer of Waste Connections, Inc., a corporation organized under the laws of Ontario, Canada (the “Company”), hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Quarterly Report of the Company on Form 10-Q for the period ended March 31, 2021 (the “Report”), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

9
Date: April 29, 2021	By:	/s/ Worthing F. Jackman
		Worthing F. Jackman
		President and Chief Executive Officer

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. Section 1350, and shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing, except to the extent that the Company specifically incorporates it by reference.

EX-32.2

Exhibit 32.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

(Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

I, Mary Anne Whitney, being the duly elected and acting Executive Vice President and Chief Financial Officer of Waste Connections, Inc., a corporation organized under the laws of Ontario, Canada (the “Company”), hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Quarterly Report of the Company on Form 10-Q for the period ended March 31, 2021 (the “Report”), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: April 29, 2021	By:	/s/ Mary Anne Whitney
		Mary Anne Whitney
		Executive Vice President and
		Chief Financial Officer

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. Section 1350, and shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing, except to the extent that the Company specifically incorporates it by reference.

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Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2021	Apr. 16, 2021
Document And Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	1-34370
Entity Registrant Name	WASTE CONNECTIONS, INC.
Entity Incorporation, State or Country Code	A6
Entity Tax Identification Number	98-1202763
Entity Address, Address Line One	6220 Hwy 7, Suite 600
Entity Address, City or Town	Woodbridge
Entity Address, State or Province	ON
Entity Address, Country	CA
Entity Address, Postal Zip Code	L4H 4G3
City Area Code	905
Local Phone Number	532-7510
Title of 12(b) Security	Common Shares, no par value
Trading Symbol	WCN
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock Shares Outstanding		261,684,677
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001318220
Amendment Flag	false

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Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and equivalents	$ 743,464	$ 617,294
Accounts receivable, net of allowance for credit losses of $18,970 and $19,380 at March 31, 2021 and December 31, 2020, respectively	608,758	630,264
Prepaid expenses and other current assets	151,769	160,714
Total current assets	1,503,991	1,408,272
Restricted cash	105,689	97,095
Restricted investments	56,620	57,516
Property and equipment, net	5,232,682	5,284,506
Operating lease right-of-use assets	174,635	170,923
Goodwill	5,754,101	5,726,650
Intangible assets, net	1,125,894	1,155,079
Other assets, net	89,317	92,323
Total assets	14,042,929	13,992,364
Current liabilities:
Accounts payable	280,025	290,820
Book overdraft	234	17,079
Deferred revenue	243,712	233,596
Accrued liabilities	399,470	404,923
Current portion of operating lease liabilities	35,699	30,671
Current portion of contingent consideration	42,360	43,297
Current portion of long-term debt and notes payable	105,386	8,268
Total current liabilities	1,106,886	1,028,654
Long-term debt and notes payable	4,613,602	4,708,678
Long-term portion of operating lease liabilities	146,018	147,223
Long-term portion of contingent consideration	24,618	28,439
Deferred income taxes	776,498	760,044
Other long-term liabilities	433,434	455,888
Total liabilities	7,101,056	7,128,926
Commitments and contingencies (Note 17)
Equity:
Common shares: 262,564,371 shares issued and 262,491,505 shares outstanding at March 31, 2021; 262,899,174 shares issued and 262,824,990 shares outstanding at December 31, 2020	3,964,500	4,030,368
Additional paid-in capital	161,638	170,555
Accumulated other comprehensive loss	46,171	(651)
Treasury shares: 72,866 and 74,184 shares at March 31, 2021 and December 31, 2020, respectively
Retained earnings	2,765,401	2,659,001
Total Waste Connections' equity	6,937,710	6,859,273
Noncontrolling interest in subsidiaries	4,163	4,165
Total equity	6,941,873	6,863,438
Total liabilities and shareholders' equity	$ 14,042,929	$ 13,992,364

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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Allowance for credit losses	$ 18,970	$ 19,380
Common shares, shares issued	262,564,371	262,899,174
Common shares, shares outstanding	262,491,505	262,824,990
Treasury shares	72,866	74,184

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Condensed Consolidated Statements of Net Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenues	$ 1,395,942	$ 1,352,404
Operating expenses:
Cost of operations	825,920	815,424
Selling, general and administrative	141,422	136,052
Depreciation	157,402	150,821
Amortization of intangibles	32,192	31,638
Impairments and other operating items	634	1,506
Operating income	238,372	216,963
Interest expense	(42,425)	(37,990)
Interest income	1,103	2,175
Other income (expense), net	3,548	(9,521)
Income before income tax provision	200,598	171,627
Income tax provision	(40,291)	(28,734)
Net income	160,307	142,893
Plus (less): Net loss (income) attributable to noncontrolling interests	2	142
Net income attributable to Waste Connections	$ 160,309	$ 143,035
Earnings per common share attributable to Waste Connections' common shareholders:
Basic	$ 0.61	$ 0.54
Diluted	$ 0.61	$ 0.54
Shares used in the per share calculations:
Basic	262,697,487	263,790,364
Diluted	263,156,655	264,353,158
Cash dividends per common share	$ 0.205	$ 0.185

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Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income (loss)	$ 160,307	$ 142,893
Other comprehensive income (loss), before tax:
Foreign currency translation adjustment	28,054	(184,717)
Other comprehensive income (loss), before tax	53,589	(243,183)
Income tax (expense) benefit related to items of other comprehensive income (loss)	(6,767)	15,494
Other comprehensive income (loss), net of tax	46,822	(227,689)
Comprehensive income	207,129	(84,796)
Plus (less): Comprehensive loss (income) attributable to noncontrolling interests	2	142
Comprehensive income attributable to Waste Connections	207,131	(84,654)
Interest Rate Swap [Member]
Other comprehensive income (loss), before tax:
Amounts reclassified, gross	4,796	(440)
Change in fair value, gross	$ 20,739	$ (58,026)

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Condensed Consolidated Statements of Equity - USD ($) $ in Thousands	Common Stock [Member] Deferred Compensation Plan [Member]	Common Stock [Member] Performance Shares [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Noncontrolling Interests [Member]	Total
Cumulative effect adjustment from adoption of new accounting pronouncement			$ 4,135,343	$ 154,917	$ (10,963)		$ 2,654,207	$ 4,850	$ 6,938,354
Beginning Balances at Dec. 31, 2019			$ 4,135,343	154,917	(10,963)		2,654,207	4,850	6,938,354
Beginning Balances, shares at Dec. 31, 2019			263,618,161
Beginning Balance, treasury shares at Dec. 31, 2019						81,514
Sale of common shares held in trust			$ 679						679
Sale of common shares held in trust, shares			7,330			(7,330)
Vesting of restricted share units (shares)	20,229	281,186	366,603
Fair value adjustment for common shares in deferred compensation plan exchanged for other investment options				(533)					(533)
Tax withholdings related to net share settlements of equity-based compensation				(23,090)					(23,090)
Tax withholdings related to net share settlements of equity-based compensation, shares			(226,766)
Equity-based compensation				10,144					$ 10,144
Exercise of warrants			9,751
Repurchase of common shares (shares)			(1,271,977)						(1,271,977)
Repurchase of common shares			$ (105,654)						$ (105,654)
Cash dividends on common shares							(48,018)		(48,018)
Amounts reclassified into earnings, net of taxes					(323)				(323)
Changes in fair value of cash flow hedges, net of taxes					(42,649)				(42,649)
Foreign currency translation adjustment					(184,717)				(184,717)
Cumulative effect adjustment from adoption of new accounting pronouncement			4,030,368	141,438	(238,652)		2,749,224	4,708	6,687,086
Net income (loss)							143,035	(142)	142,893
Ending Balances at Mar. 31, 2020			$ 4,030,368	141,438	(238,652)		2,749,224	4,708	6,687,086
Ending Balances, shares at Mar. 31, 2020			262,804,517
Ending Balance, treasury shares at Mar. 31, 2020						74,184
Cumulative effect adjustment from adoption of new accounting pronouncement			$ 4,030,368	141,438	(238,652)		2,749,224	4,708	6,687,086
Cumulative effect adjustment from adoption of new accounting pronouncement			4,030,368	170,555	(651)		2,659,001	4,165	6,863,438
Beginning Balances at Dec. 31, 2020			$ 4,030,368	170,555	(651)		2,659,001	4,165	$ 6,863,438
Beginning Balances, shares at Dec. 31, 2020			262,824,990						262,824,990
Beginning Balance, treasury shares at Dec. 31, 2020						74,184			74,184
Sale of common shares held in trust			$ 131						$ 131
Sale of common shares held in trust, shares			1,318			(1,318)
Vesting of restricted share units (shares)	19,150	154,251	340,529
Tax withholdings related to net share settlements of equity-based compensation				(18,490)					(18,490)
Tax withholdings related to net share settlements of equity-based compensation, shares			(186,039)
Equity-based compensation				9,573					$ 9,573
Exercise of warrants			3,490
Repurchase of common shares (shares)			(666,184)						(666,184)
Repurchase of common shares			$ (65,999)						$ (65,999)
Cash dividends on common shares							(53,909)		(53,909)
Amounts reclassified into earnings, net of taxes					3,525				3,525
Changes in fair value of cash flow hedges, net of taxes					15,243				15,243
Foreign currency translation adjustment					28,054				28,054
Cumulative effect adjustment from adoption of new accounting pronouncement			3,964,500	161,638	46,171		2,765,401	4,163	6,863,438
Net income (loss)							160,309	(2)	160,307
Ending Balances at Mar. 31, 2021			$ 3,964,500	161,638	46,171		2,765,401	4,163	$ 6,941,873
Ending Balances, shares at Mar. 31, 2021			262,491,505						262,491,505
Ending Balance, treasury shares at Mar. 31, 2021						72,866			72,866
Cumulative effect adjustment from adoption of new accounting pronouncement			$ 3,964,500	$ 161,638	$ 46,171		$ 2,765,401	$ 4,163	$ 6,941,873

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income (loss)	$ 160,307	$ 142,893
Adjustments to reconcile net income to net cash provided by operating activities:
Loss on disposal of assets and impairments	401	135
Depreciation	157,402	150,821
Amortization of intangibles	32,192	31,638
Deferred income taxes, net of acquisitions	8,379	23,259
Amortization of debt issuance costs	1,359	3,420
Share-based compensation	10,307	13,046
Interest accretion	4,204	4,352
Payment of contingent consideration recorded in earnings	(520)
Adjustments to contingent consideration	89
Other	(796)	2,308
Net change in operating assets and liabilities, net of acquisitions	27,072	(2,286)
Net cash provided by operating activities	400,396	369,586
Cash flows from investing activities:
Payments for acquisitions, net of cash acquired	(8,545)	(5,943)
Capital expenditures for property and equipment	(96,793)	(137,781)
Proceeds from disposal of assets	2,080	3,499
Other	2,705	6,599
Net cash used in investing activities	(100,553)	(133,626)
Cash flows from financing activities:
Proceeds from long-term debt		1,790,625
Principal payments on notes payable and long-term debt	(5,559)	(970,393)
Payment of contingent consideration recorded at acquisition date	(4,807)	(1,976)
Change in book overdraft	(16,849)	(3,848)
Payments for repurchase of common shares	(65,999)	(105,654)
Payments for cash dividends	(53,909)	(48,018)
Tax withholdings related to net share settlements of equity-based compensation	(18,490)	(23,090)
Debt issuance costs		(10,936)
Proceeds from sale of common shares held in trust	131	679
Net cash provided by (used in) financing activities	(165,482)	627,389
Effect of exchange rate changes on cash, cash equivalents and restricted cash	403	(2,364)
Net increase in cash, cash equivalents and restricted cash	134,764	860,985
Cash, cash equivalents and restricted cash at beginning of period	714,389	423,221
Cash, cash equivalents and restricted cash at end of period	$ 849,153	$ 1,284,206

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Basis of Presentation and Summary

3 Months Ended

Mar. 31, 2021

Basis of Presentation and Summary [Abstract]

Basis of Presentation and Summary

1.BASIS OF PRESENTATION AND SUMMARY

The accompanying condensed consolidated financial statements relate to Waste Connections, Inc. and its subsidiaries (the “Company”) for the three month periods ended March 31, 2021 and 2020. In the opinion of management, the accompanying balance sheets and related interim statements of net income, comprehensive income (loss), cash flows and equity include all adjustments, consisting only of normal recurring items, necessary for their fair statement in conformity with U.S. generally accepted accounting principles (“GAAP”). Preparing financial statements requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. Examples include accounting for landfills, self-insurance accruals, income taxes, allocation of acquisition purchase price, contingent consideration accruals and asset impairments. An additional area that involves estimation is when the Company estimates the amount of potential exposure it may have with respect to litigation, claims and assessments in accordance with the accounting guidance on contingencies. Actual results for all estimates could differ materially from the estimates and assumptions that the Company uses in the preparation of its condensed consolidated financial statements.

The challenges posed by the pandemic of coronavirus disease 2019 (“COVID-19”) on the global economy persisted through the first quarter of 2021 and continue to impact the demand for the Company’s services to varying degrees and in varying ways across the U.S. and Canada and across a variety of lines of business, including commercial collection and solid waste and non-hazardous oil and natural gas exploration and production (“E&P”) waste treatment, recovery and disposal services.  In response to the COVID-19 pandemic, national and local governments around the world have instituted certain measures, including travel bans, prohibitions on group events and gatherings, shutdowns of certain businesses, curfews, shelter-in-place orders and recommendations to practice social distancing.  In some markets where a portion of these measures have been curtailed, the impact on demand for the Company’s services has decreased as activity levels have increased. The impact of the COVID-19 pandemic on the Company’s business, results of operations, financial condition and cash flows in future periods will depend largely on future developments, including the duration and spread of the outbreak in the U.S. and Canada, the rate of vaccinations, the severity of COVID-19 variants, the actions to contain such coronavirus variants, and how quickly and to what extent normal economic and operating conditions can resume, all of which are uncertain and cannot be predicted at this time.

Interim results are not necessarily indicative of results for a full year. These interim financial statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020.

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Reporting Currency

3 Months Ended

Mar. 31, 2021

Reporting Currency [Abstract]

Reporting Currency

2.REPORTING CURRENCY

The functional currency of the Company, as the parent corporate entity, and its operating subsidiaries in the United States, is the U.S. dollar. The functional currency of the Company’s Canadian operations is the Canadian dollar. The reporting currency of the Company is the U.S. dollar. The Company’s consolidated Canadian dollar financial position is translated to U.S. dollars by applying the foreign currency exchange rate in effect at the consolidated balance sheet date. The Company’s consolidated Canadian dollar results of operations and cash flows are translated to U.S. dollars by applying the average foreign currency exchange rate in effect during the reporting period. The resulting translation adjustments are included in other comprehensive income or loss. Gains and losses from foreign currency transactions are included in earnings for the period.

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New Accounting Standards

3 Months Ended

Mar. 31, 2021

New Accounting Standards [Abstract]

New Accounting Standards

3.NEW ACCOUNTING STANDARDS

Accounting Standards Adopted

Income Taxes – Simplifying the Accounting for Income Taxes.  In December 2019, the Financial Accounting Standards Board (“FASB”) issued guidance that simplifies the accounting for income taxes as part of its overall initiative to reduce complexity in applying accounting standards while maintaining or improving the usefulness of the information provided to users of financial statements.  The amendments include removal of certain exceptions to the general principles of income taxes, and simplification in several other areas such as accounting for a franchise tax that is partially based on income. The standard is effective for public business entities that are U.S. Securities and Exchange Commission (“SEC”) filers for annual periods beginning after December 15, 2020, and interim periods within those reporting periods. The Company adopted the new standard as of January 1, 2021.  The adoption of this new standard did not have a material impact on the Company’s consolidated financial statements.

Accounting Standards Pending Adoption

Reference Rate Reform – Facilitation of the Effects of Reference Rate Reform on Financial Reporting.  In March 2020, the FASB issued guidance to provide temporary optional expedients and exceptions to the guidance in GAAP on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (“LIBOR”) and other interbank offered rates to alternative reference rates, such as the Secured Overnight Financing Rate (“SOFR”).  One-week and two-month U.S. dollar LIBOR settings as well as all non-U.S. dollar LIBOR settings will stop being published on December 31, 2021, while the remaining U.S. dollar LIBOR settings will be discontinued on June 30, 2023.  Under the new guidance, entities can elect not to apply certain modification accounting requirements to contracts affected by reference rate reform, if certain criteria are met.  An entity that makes this election would not have to remeasure the contracts at the modification date or reassess a previous accounting determination.  Under the guidance, entities can also elect various optional expedients that would allow them to continue applying hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met.

The guidance is effective upon issuance.  The guidance on contract modifications is applied prospectively from March 12, 2020.  It may also be applied to modifications of existing contracts made earlier in the interim period that includes the effective date.  The guidance on hedging is applied to eligible hedging relationships existing as of the beginning of the interim period that includes the effective date and to new eligible hedging relationships entered into after the beginning of that interim period.  The relief is temporary and generally cannot be applied to contract modifications that occur after December 31, 2022 or hedging relationships entered into or evaluated after that date.  However, certain optional expedients can be applied to hedging relationships evaluated in periods after December 31, 2022.  The Company is currently assessing the potential impact of implementing this new guidance on its consolidated financial statements.  To the extent that the transition away from the use of LIBOR might affect the Company’s ability to maintain cash ‎flow hedge accounting as described in Note 11, the relief is expected to permit the Company to maintain that cash flow ‎hedge accounting.

SEC amends MD&A and other Regulation S-K disclosure requirements.  In November 2020, the SEC adopted amendments to Regulation S-K to eliminate certain disclosure requirements and to revise several others to make the disclosures provided in management’s discussion and analysis more useful for investors.  Key changes included: (1) enhancements and clarification of the disclosure requirements for liquidity and capital resources; (2) elimination of five years of Selected Financial Data; (3) replacement of the current requirement for two years of quarterly tabular disclosure with a principles-based requirement to provide information only when there are material retrospective changes; (4) codification of prior SEC guidance on critical accounting estimates; (5) elimination of the tabular disclosure of contractual obligations; and (6) conforming amendments for foreign private issuers. The amended rules were posted to the Federal

Register on January 11, 2021 and became effective February 10, 2021.  Registrants are required to comply with the new rules beginning with the first fiscal year ending on or after August 9, 2021.  Registrants may early adopt the amended rules at any time after the effective date (on an item-by-item basis), as long as they provide the disclosure responsive to an amended item in its entirety.

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Reclassification

3 Months Ended

Mar. 31, 2021

Reclassification [Abstract]

Reclassification

4.RECLASSIFICATION

As disclosed within Note 10 to the financial statements, segment information reported in the Company’s prior year has been reclassified to conform to the 2021 presentation.

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Revenue

3 Months Ended

Mar. 31, 2021

Revenue [Abstract]

Revenue

5.REVENUE

The Company’s operations primarily consist of providing non-hazardous waste collection, transfer, disposal and recycling services, E&P services, and intermodal services. The following table disaggregates the Company’s revenues by service line for the periods indicated:

		Three Months Ended March 31,
	2021		2020
Commercial	$	426,395	$	416,507
Residential		400,819		365,731
Industrial and construction roll off		209,258		206,771
Total collection		1,036,472		989,009
Landfill		271,936		266,218
Transfer		189,323		180,765
Recycling		32,448		18,108
E&P		28,012		65,377
Intermodal and other		35,634		30,018
Intercompany		(197,883)		(197,091)
Total	$	1,395,942	$	1,352,404

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, the Company recognizes revenue at the time it performs a service. In the event that the Company bills for services in advance of performance, it recognizes deferred revenue for the amount billed and subsequently recognizes revenue at the time the service is provided.  Substantially all of the deferred revenue recorded as of December 31, 2020 was recognized as revenue during the three months ended March 31, 2021 when the service was performed.

See Note 10 for additional information regarding revenue by reportable segment.

Contract Acquisition Costs

The incremental direct costs of obtaining a contract, which consist of sales incentives, are recognized as Other assets in the Company’s Condensed Consolidated Balance Sheet, and are amortized to Selling, general and administrative expense over the estimated life of the relevant customer relationship, which ranges from one to five years. The Company recognizes the incremental costs of obtaining a contract as an expense when incurred if the amortization period of the asset that the entity would have recognized is one year or less.  The Company had $18,954 and $19,669 of deferred sales incentives at March 31, 2021 and December 31, 2020, respectively.

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Accounts Receivable

3 Months Ended

Mar. 31, 2021

Accounts Receivable [Abstract]

Accounts Receivable

6.ACCOUNTS RECEIVABLE

Accounts receivable are recorded when billed or accrued and represent claims against third parties that will be settled in cash. The carrying value of the Company’s receivables, net of the allowance for credit losses, represents their estimated net realizable value.

The allowance for credit losses is based on management’s assessment of the collectability of assets pooled together with similar risk characteristics.  The Company monitors the collectability of its trade receivables as one overall pool due to all trade receivables having similar risk characteristics.  The Company estimates its allowance for credit losses based on historical collection trends, the age of outstanding receivables, geographical location of the customer, existing economic conditions and reasonable forecasts. If events or changes in circumstances indicate that specific receivable balances may be impaired, further consideration is given to the collectability of those balances and the allowance is adjusted accordingly. Past-due receivable balances are written off when the Company’s internal collection efforts have been unsuccessful in collecting the amount due.

	Three Months Ended March 31,
	2021		2020
Beginning balance	$	19,380	$	16,432
Current period provision for expected credit losses		1,915		2,027
Write-offs charged against the allowance		(3,501)		(5,063)
Recoveries collected		1,153		1,932
Impact of changes in foreign currency		23		(156)
Ending balance	$	18,970	$	15,172

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Landfill Accounting

3 Months Ended

Mar. 31, 2021

Landfill Accounting [Abstract]

Landfill Accounting

7.LANDFILL ACCOUNTING

At March 31, 2021, the Company’s landfills consisted of 82 owned landfills, five landfills operated under life-of-site operating agreements, four landfills operated under limited-term operating agreements and one development stage landfill. The Company’s landfills had site costs with a net book value of $2,625,877 at March 31, 2021. For the Company’s landfills operated under limited-term operating agreements and life-of-site operating agreements, the owner of the property (generally a municipality) usually owns the permit and the Company operates the landfill for a contracted term. Where the contracted term is not the life of the landfill, the property owner is generally responsible for final capping, closure and post-closure obligations. The Company is responsible for all final capping, closure and post-closure liabilities at the landfills it operates under life-of-site operating agreements.

The Company’s internal and third-party engineers perform surveys at least annually to estimate the remaining disposal capacity at its landfills. Many of the Company’s existing landfills have the potential for expanded disposal capacity beyond the amount currently permitted. The Company’s landfill depletion rates are based on the remaining disposal capacity, considering both permitted and probable expansion airspace, at the landfills it owns and landfills it operates, but does not own, under life-of-site agreements. The Company’s landfill depletion rate is based on the term of the operating agreement at its operated landfill that has capitalized expenditures. Expansion airspace consists of additional disposal capacity being pursued through means of an expansion that has not yet been permitted. Expansion airspace that meets certain criteria is included in the estimate of total landfill airspace.

Based on remaining permitted capacity as of March 31, 2021, and projected annual disposal volumes, the average remaining landfill life for the Company’s owned landfills and landfills operated under life-of-site operating agreements is estimated to be approximately 28 years. As of March 31, 2021, the Company is seeking to expand permitted capacity at nine of its owned landfills and three landfills that it operates under life-of-site operating agreements, and considers the achievement of these expansions to be probable. Although the Company cannot be certain that all future expansions will be permitted as designed, the average remaining life, when considering remaining permitted capacity, probable expansion capacity and projected annual disposal volume, of the Company’s owned landfills and landfills operated under life-of-site operating agreements is approximately 31 years.  The estimated remaining lives of the Company’s owned landfills and landfills operated under life-of-site operating agreements range from 1 to 283 years, with approximately 90% of the projected annual disposal volume from landfills with remaining lives of less than 70 years.

During the three months ended March 31, 2021 and 2020, the Company expensed $46,137 and $48,737, respectively, or an average of $4.53 and $4.49 per ton consumed, respectively, related to landfill depletion at owned landfills and landfills operated under life-of-site agreements.

The Company reserves for estimated final capping, closure and post-closure maintenance obligations at the landfills it owns and landfills it operates under life-of-site operating agreements. The Company calculates the net present value of its final capping, closure and post-closure liabilities by estimating the total obligation in current dollars, inflating the obligation based upon the expected date of the expenditure and discounting the inflated total to its present value using a credit-adjusted risk-free rate. Any changes in expectations that result in an upward revision to the estimated undiscounted cash flows are treated as a new liability and are inflated and discounted at rates reflecting current market conditions. Any changes in expectations that result in a downward revision (or no revision) to the estimated undiscounted cash flows result in a liability that is inflated and discounted at rates reflecting the market conditions at the time the cash flows were originally estimated. This policy results in the Company’s final capping, closure and post-closure liabilities being recorded in “layers.”  The Company’s discount rate assumption for purposes of computing 2021 and 2020 “layers” for final capping, closure and post-closure obligations was 3.25% and 4.75%, respectively,  which reflects the Company’s long-term credit adjusted risk free rate as of the end of 2020 and 2019. The Company’s inflation rate assumption is 2.25% and 2.50% for the years ending December 31, 2021 and 2020, respectively. The resulting final capping, closure and post-closure obligations are recorded on the Condensed Consolidated Balance Sheet along with an offsetting addition to site costs which is amortized to depletion expense as the remaining landfill airspace is consumed. Interest is accreted on the recorded liability using the corresponding discount rate. During the three months ended March 31, 2021 and 2020, the Company expensed $3,655 and $3,849, respectively, or an average of $0.36 and $0.36 per ton consumed, respectively, related to final capping, closure and post-closure accretion expense.

The following is a reconciliation of the Company’s final capping, closure and post-closure liability balance from December 31, 2020 to March 31, 2021:

Final capping, closure and post-closure liability at December 31, 2020	$	301,896
Liability adjustments		(7,134)
Accretion expense associated with landfill obligations		3,655
Closure payments		(3,237)
Foreign currency translation adjustment		562
Final capping, closure and post-closure liability at March 31, 2021	$	295,742

Liability adjustments of $7,134 for the three months ended March 31, 2021, represent non-cash changes to final capping, closure and post-closure liabilities and are recorded on the Condensed Consolidated Balance Sheets along with an offsetting addition to site costs, which is amortized to depletion expense as the remaining landfill airspace is consumed. The final capping, closure and post-closure liability is included in Other long-term liabilities in the Condensed

Consolidated Balance Sheets.  The Company performs its annual review of its cost and capacity estimates in the first quarter of each year.

At March 31, 2021 and December 31, 2020, $14,134 and $12,533, respectively, of the Company’s restricted cash balance and $53,924 and $54,833, respectively, of the Company’s restricted investments balance was for purposes of securing its performance of future final capping, closure and post-closure obligations.

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Intangible Assets, Net

3 Months Ended

Mar. 31, 2021

Intangible Assets, Net [Abstract]

Intangible Assets, Net

8.INTANGIBLE ASSETS, NET

Intangible assets, exclusive of goodwill, consisted of the following at March 31, 2021:

	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	601,120	$	(245,880)	$	—	$	355,240
Customer lists		638,674		(400,314)		—		238,360
Permits and other		379,785		(83,178)		—		296,607
		1,619,579		(729,372)		—		890,207
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		172,056		—		—		172,056
Material recycling facility permits		42,283		—		—		42,283
E&P facility permits		59,855		—		(38,507)		21,348
		274,194		—		(38,507)		235,687
Intangible assets, exclusive of goodwill	$	1,893,773	$	(729,372)	$	(38,507)	$	1,125,894

Intangible assets, exclusive of goodwill, consisted of the following at December 31, 2020:

	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	600,674	$	(234,972)	$	—	$	365,702
Customer lists		636,035		(382,020)		—		254,015
Permits and other		378,952		(79,277)		—		299,675
		1,615,661		(696,269)		—		919,392
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		172,056		—		—		172,056
Material recycling facility permits		42,283		—		—		42,283
E&P facility permits		59,855		—		(38,507)		21,348
		274,194		—		(38,507)		235,687
Intangible assets, exclusive of goodwill	$	1,889,855	$	(696,269)	$	(38,507)	$	1,155,079

Estimated future amortization expense for the next five years relating to finite-lived intangible assets is as follows:

For the year ending December 31, 2021	$	126,891
For the year ending December 31, 2022	$	108,169
For the year ending December 31, 2023	$	92,115
For the year ending December 31, 2024	$	79,163
For the year ending December 31, 2025	$	66,880

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Long-Term Debt

3 Months Ended

Mar. 31, 2021

Long-Term Debt [Abstract]

Long-Term Debt

9.LONG-TERM DEBT

The following table presents the Company’s long-term debt as of March 31, 2021 and December 31, 2020:

	March 31,		December 31,
	2021		2020
Revolver under Credit Agreement, bearing interest ranging from 1.31% to 1.61% (a)	$	203,976	$	203,927
Term loan under Credit Agreement, bearing interest at 1.31% (a)		650,000		650,000
4.64% Senior Notes due 2021 (b)		100,000		100,000
2.39% Senior Notes due 2021 (c)		150,000		150,000
3.09% Senior Notes due 2022		125,000		125,000
2.75% Senior Notes due 2023		200,000		200,000
3.24% Senior Notes due 2024		150,000		150,000
3.41% Senior Notes due 2025		375,000		375,000
3.03% Senior Notes due 2026		400,000		400,000
3.49% Senior Notes due 2027		250,000		250,000
4.25% Senior Notes due 2028		500,000		500,000
3.50% Senior Notes due 2029		500,000		500,000
2.60% Senior Notes due 2030		600,000		600,000
3.05% Senior Notes due 2050		500,000		500,000
Notes payable to sellers and other third parties, bearing interest ranging from 2.42% to 10.35%, principal and interest payments due periodically with due dates ranging from 2028 to 2036 (a)		38,008		43,131
Finance leases, bearing interest at 1.89% with a lease expiration date of 2026 (a)		9,822		3,754
		4,751,806		4,750,812
Less – current portion		(105,386)		(8,268)
Less – unamortized debt discount and issuance costs		(32,818)		(33,866)
	$	4,613,602	$	4,708,678

____________________

(a) Interest rates represent the interest rates in effect at March 31, 2021.

(b) The Company redeemed the 4.64% Senior Notes due 2021 (the “2021 Senior Notes”) on April 1, 2021.

(c) The Company has recorded the 2.39% Senior Notes due 2021 (the “New 2021 Senior Notes”) in long-term debt in the table above as the Company has the intent and ability to redeem the New 2021 Senior Notes on June 1, 2021 using borrowings under the Credit Agreement.

Credit Agreement

Details of the Credit Agreement are as follows:

	March 31,			December 31,
	2021			2020
Revolver under Credit Agreement
Available	$	1,240,137		$	1,238,937
Letters of credit outstanding	$	118,387		$	119,636
Total amount drawn, as follows:	$	203,976		$	203,927
Amount drawn - U.S. LIBOR rate loan	$	200,000		$	200,000
Interest rate applicable - U.S. LIBOR rate loan		1.31	%		1.35	%
Amount drawn – Canadian bankers’ acceptance	$	3,976		$	3,927
Interest rate applicable – Canadian bankers’ acceptance		1.61	%		1.66	%
Commitment – rate applicable		0.15	%		0.15	%
Term loan under Credit Agreement
Amount drawn – U.S. based LIBOR loan	$	650,000		$	650,000
Interest rate applicable – U.S. based LIBOR loan		1.31	%		1.35	%

In addition to the $118,387 of letters of credit at March 31, 2021 issued under the Credit Agreement, the Company has issued letters of credit totaling $6,796 under facilities other than the Credit Agreement.

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Segment Reporting

3 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Segment Reporting

10.SEGMENT REPORTING

The Company’s revenues are generated from the collection, transfer, recycling and disposal of non-hazardous solid waste and the treatment, recovery and disposal of non-hazardous E&P waste. No single contract or customer accounted for more than 10% of the Company’s total revenues at the consolidated or reportable segment level during the periods presented.

Prior to July 2020, the Company managed its operations through five geographic solid waste operating segments and its E&P segment, which were also its reportable segments. As of July 2020, the Company’s Chief Operating Decision Maker determined that the Company’s E&P and Southern operating segments met all the aggregation criteria and eliminated the E&P segment by combining all operations of the E&P segment into the Southern segment. After giving effect to this combination, the Company’s reportable segments consist of its five geographic operating segments and no longer include a separate E&P segment. Each operating segment is responsible for managing several vertically integrated operations, which are comprised of districts.  The segment information presented herein reflects the realignment of these districts.  Segment results for the 2020 periods reflected in this report have been reclassified to reflect the realignment of the Company’s reportable segments for comparison with the same period in 2021.

Under the current orientation, the Company’s Southern segment services customers located in Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, New Mexico, North Dakota, southern Oklahoma, western Tennessee, Texas, Wyoming and along the Gulf of Mexico; the Company’s Eastern segment services customers located in Delaware, northern Illinois, Kentucky, Maryland, Massachusetts, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, South Carolina, eastern Tennessee, Vermont, Virginia and Wisconsin; the Company’s Western segment services customers located in Alaska, California, Idaho, Montana, Nevada, Oregon, Washington and western Wyoming; the Company’s Central segment services customers located in Arizona, Colorado, southern Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, New Mexico, Oklahoma, South Dakota, western Texas, Utah and eastern Wyoming; and the Company’s Canada

segment services customers located in the state of Michigan and in the provinces of Alberta, British Columbia, Manitoba, Ontario, Québec and Saskatchewan.

The Company’s Chief Operating Decision Maker evaluates operating segment profitability and determines resource allocations based on several factors, of which the primary financial measure is segment EBITDA. The Company defines segment EBITDA as earnings before interest, taxes, depreciation, amortization, impairments and other operating items, and other income (expense). Segment EBITDA is not a measure of operating income, operating performance or liquidity under GAAP and may not be comparable to similarly titled measures reported by other companies. The Company’s management uses segment EBITDA in the evaluation of segment operating performance as it is a profit measure that is generally within the control of the operating segments. A reconciliation of segment EBITDA to Income before income tax provision is included at the end of this Note 10.

Summarized financial information concerning the Company’s reportable segments for the three months ended March 31, 2021 and 2020, is shown in the following tables:

Three Months Ended			Intercompany		Reported		Segment
March 31, 2021	Revenue		Revenue(b)		Revenue		EBITDA(c)
Southern	$	382,687	$	(44,526)	$	338,161	$	93,424
Eastern		398,830		(62,369)		336,461		89,121
Western		332,820		(35,816)		297,004		93,825
Central		267,702		(32,316)		235,386		79,040
Canada		211,786		(22,856)		188,930		73,940
Corporate(a)		—		—		—		(750)
	$	1,593,825	$	(197,883)	$	1,395,942	$	428,600

Three Months Ended			Intercompany		Reported		Segment
March 31, 2020	Revenue		Revenue(b)		Revenue		EBITDA(c)
Southern	$	416,382	$	(47,126)	$	369,256	$	106,319
Eastern		397,000		(64,798)		332,202		84,662
Western		305,436		(33,455)		271,981		81,029
Central		237,570		(29,028)		208,542		73,151
Canada		193,107		(22,684)		170,423		59,398
Corporate(a)		—		—		—		(3,631)
	$	1,549,495	$	(197,091)	$	1,352,404	$	400,928

____________________

(a) The majority of Corporate expenses are allocated to the five operating segments.  Direct acquisition expenses, expenses associated with common shares held in the deferred compensation plan exchanged for other investment options and share-based compensation expenses associated with Progressive Waste share-based grants outstanding at June 1, 2016 that were continued by the Company are not allocated to the five operating segments and comprise the net EBITDA of the Company’s Corporate segment for the periods presented.

(b) Intercompany revenues reflect each segment’s total intercompany sales, including intercompany sales within a segment and between segments. Transactions within and between segments are generally made on a basis intended to reflect the market value of the service.

(c) For those items included in the determination of segment EBITDA, the accounting policies of the segments are the same as those described in the Company’s most recent Annual Report on Form 10-K.

Total assets for each of the Company’s reportable segments at March 31, 2021 and December 31, 2020, were as follows:

	March 31,		December 31,
	2021		2020
Southern	$	3,373,593	$	3,402,081
Eastern		3,094,800		3,134,462
Western		1,859,205		1,861,079
Central		2,144,461		2,160,246
Canada		2,552,952		2,544,379
Corporate		1,017,918		890,117
Total Assets	$	14,042,929	$	13,992,364

The following tables show changes in goodwill during the three months ended March 31, 2021 and 2020, by reportable segment:

	Southern		Eastern		Western		Central		Canada		Total
Balance as of December 31, 2020	$	1,532,215	$	1,374,577	$	442,862	$	824,204	$	1,552,792	$	5,726,650
Goodwill acquired		—		—		2,289		—		—		2,289
Goodwill acquisition adjustments		(4)		1,408		—		4,385		(2)		5,787
Impact of changes in foreign currency		—		—		—		—		19,375		19,375
Balance as of March 31, 2021	$	1,532,211	$	1,375,985	$	445,151	$	828,589	$	1,572,165	$	5,754,101

	Southern		Eastern		Western		Central		Canada		Total
Balance as of December 31, 2019	$	1,528,225	$	1,331,180	$	400,037	$	729,470	$	1,521,939	$	5,510,851
Goodwill acquired		—		—		—		3,741		—		3,741
Goodwill acquisition adjustments		195		(524)		70		—		—		(259)
Impact of changes in foreign currency		—		—		—		—		(128,492)		(128,492)
Balance as of March 31, 2020	$	1,528,420	$	1,330,656	$	400,107	$	733,211	$	1,393,447	$	5,385,841

A reconciliation of the Company’s primary measure of segment profitability (segment EBITDA) to Income before income tax provision in the Condensed Consolidated Statements of Net Income is as follows:

	Three Months Ended
	March 31,
	2021		2020
Southern segment EBITDA	$	93,424	$	106,319
Eastern segment EBITDA		89,121		84,662
Western segment EBITDA		93,825		81,029
Central segment EBITDA		79,040		73,151
Canada segment EBITDA		73,940		59,398
Subtotal reportable segments		429,350		404,559
Unallocated corporate overhead		(750)		(3,631)
Depreciation		(157,402)		(150,821)
Amortization of intangibles		(32,192)		(31,638)
Impairments and other operating items		(634)		(1,506)
Interest expense		(42,425)		(37,990)
Interest income		1,103		2,175
Other income (expense), net		3,548		(9,521)
Income before income tax provision	$	200,598	$	171,627

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Derivative Financial Instruments

3 Months Ended

Mar. 31, 2021

Derivative Financial Instruments [Abstract]

Derivative Financial Instruments

11.DERIVATIVE FINANCIAL INSTRUMENTS

The Company recognizes all derivatives on the Condensed Consolidated Balance Sheets at fair value. All of the Company’s derivatives have been designated as cash flow hedges; therefore, the gain or loss on the derivatives will be recognized in accumulated other comprehensive income (loss) (“AOCIL”) and reclassified into earnings in the same period during which the hedged transaction affects earnings and is presented in the same income statement line item as the earnings effect of the hedged item.  The Company classifies cash inflows and outflows from derivatives within operating activities on the Condensed Consolidated Statements of Cash Flows.

One of the Company’s objectives for utilizing derivative instruments is to reduce its exposure to fluctuations in cash flows due to changes in the variable interest rates of certain borrowings under the Credit Agreement. The Company’s strategy to achieve that objective involves entering into interest rate swaps. The interest rate swaps outstanding at March 31, 2021 were specifically designated to the Credit Agreement and accounted for as cash flow hedges.

At March 31, 2021, the Company’s derivative instruments included six interest rate swap agreements as follows:

			Fixed		Variable
	Notional		Interest		Interest Rate
Date Entered	Amount		Rate Paid*		Received	Effective Date	Expiration Date
August 2017	$	100,000	1.900	%	1-month LIBOR	July 2019	July 2022
August 2017	$	200,000	2.200	%	1-month LIBOR	October 2020	October 2025
August 2017	$	150,000	1.950	%	1-month LIBOR	February 2020	February 2023
June 2018	$	200,000	2.925	%	1-month LIBOR	October 2020	October 2025
June 2018	$	200,000	2.925	%	1-month LIBOR	October 2020	October 2025
December 2018	$	200,000	2.850	%	1-month LIBOR	July 2022	July 2027

____________________

* Plus applicable margin.

The fair values of derivative instruments designated as cash flow hedges as of March 31, 2021, were as follows:

Derivatives Designated as Cash	Asset Derivatives			Liability Derivatives
Flow Hedges	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swaps	Prepaid expenses and other current assets	$	—	Accrued liabilities(a)	$	(19,778)
				Other long-term liabilities		(49,376)
Total derivatives designated as cash flow hedges		$	—		$	(69,154)

____________________

(a)Represents the estimated amount of the existing unrealized losses on interest rate swaps as of March 31, 2021 (based on the interest rate yield curve at that date), included in AOCIL expected to be reclassified into pre-tax earnings within the next 12 months. The actual amounts reclassified into earnings are dependent on future movements in interest rates.

The fair values of derivative instruments designated as cash flow hedges as of December 31, 2020, were as follows:

Derivatives Designated as Cash	Asset Derivatives			Liability Derivatives
Flow Hedges	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swaps	Prepaid expenses and other current assets	$	—	Accrued liabilities	$	(20,023)
				Other long-term liabilities		(74,666)
Total derivatives designated as cash flow hedges		$	—		$	(94,689)

The following table summarizes the impact of the Company’s cash flow hedges on the results of operations, comprehensive income (loss) and AOCIL for the three months ended March 31, 2021 and 2020:

Derivatives					Statement of	Amount of (Gain) or Loss Reclassified
Designated as Cash	Amount of Gain or (Loss) Recognized				Net Income	from AOCIL into Earnings,
Flow Hedges	as AOCIL on Derivatives, Net of Tax (a)				Classification	Net of Tax (b)
	Three Months Ended					Three Months Ended
	March 31,					March 31,
	2021		2020			2021		2020
Interest rate swaps	$	15,243	$	(42,649)	Interest expense	$	3,525	$	(323)

____________________

(a)In accordance with the derivatives and hedging guidance, the changes in fair values of interest rate swaps have been recorded in equity as a component of AOCIL. As the critical terms of the interest rate swaps match the underlying debt being hedged, all unrealized changes in fair value are recorded in AOCIL.

(b)Amounts reclassified from AOCIL into earnings related to realized gains and losses on interest rate swaps are recognized when interest payments or receipts occur related to the swap contracts, which correspond to when interest payments are made on the Company’s hedged debt.

See Note 15 for further discussion on the impact of the Company’s hedge accounting to its consolidated comprehensive income (loss) and AOCIL.  

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2021

Fair Value [Abstract]

Fair Value of Financial Instruments

12.FAIR VALUE OF FINANCIAL INSTRUMENTS

The Company’s financial instruments consist primarily of cash and equivalents, trade receivables, restricted cash and investments, trade payables, debt instruments, contingent consideration obligations and interest rate swaps. As of March 31, 2021 and December 31, 2020, the carrying values of cash and equivalents, trade receivables, restricted cash and investments, trade payables and contingent consideration are considered to be representative of their respective fair values. The carrying values of the Company’s debt instruments, excluding certain notes as listed in the table below, approximate their fair values as of March 31, 2021 and December 31, 2020, based on current borrowing rates, current remaining average life to maturity and borrower credit quality for similar types of borrowing arrangements, and are classified as Level 2 within the fair value hierarchy. The carrying values and fair values of the Company’s debt instruments where the carrying values do not approximate their fair values as of March 31, 2021 and December 31, 2020, are as follows:

	Carrying Value at				Fair Value* at
	March 31,		December 31,		March 31,		December 31,
	2021		2020		2021		2020
4.64% Senior Notes due 2021	$	100,000	$	100,000	$	100,010	$	100,850
2.39% Senior Notes due 2021	$	150,000	$	150,000	$	150,363	$	150,695
3.09% Senior Notes due 2022	$	125,000	$	125,000	$	128,420	$	128,482
2.75% Senior Notes due 2023	$	200,000	$	200,000	$	206,447	$	206,204
3.24% Senior Notes due 2024	$	150,000	$	150,000	$	157,859	$	158,140
3.41% Senior Notes due 2025	$	375,000	$	375,000	$	398,579	$	403,025
3.03% Senior Notes due 2026	$	400,000	$	400,000	$	416,544	$	424,874
3.49% Senior Notes due 2027	$	250,000	$	250,000	$	264,697	$	271,198
4.25% Senior Notes due 2028	$	500,000	$	500,000	$	563,500	$	597,050
3.50% Senior Notes due 2029	$	500,000	$	500,000	$	536,050	$	570,450
2.60% Senior Notes due 2030	$	600,000	$	600,000	$	603,240	$	644,520
3.05% Senior Notes due 2050	$	500,000	$	500,000	$	471,600	$	540,050

____________________

*Senior Notes are classified as Level 2 within the fair value hierarchy. Fair value inputs include third-party calculations of the market interest rate of notes with similar ratings in similar industries over the remaining note terms.

For details on the fair value of the Company’s interest rate swaps, restricted cash and investments and contingent consideration, refer to Note 14.

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Net Income Per Share Information

3 Months Ended

Mar. 31, 2021

Net Income Per Share Information [Abstract]

Net Income Per Share Information

13.NET INCOME PER SHARE INFORMATION

The following table sets forth the calculation of the numerator and denominator used in the computation of basic and diluted net income per common share attributable to the Company’s shareholders for the three months ended March 31, 2021 and 2020:

	Three Months Ended
	2021		2020
Numerator:
Net income attributable to Waste Connections for basic and diluted earnings per share	$	160,309	$	143,035
Denominator:
Basic shares outstanding		262,697,487		263,790,364
Dilutive effect of equity-based awards		459,168		562,794
Diluted shares outstanding		263,156,655		264,353,158

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Fair Value Measurements

3 Months Ended

Mar. 31, 2021

Fair Value [Abstract]

Fair Value Measurements

14.FAIR VALUE MEASUREMENTS

The Company uses a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis in periods subsequent to their initial measurement. These tiers include:  Level 1, defined as quoted market prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, model-based valuation techniques for which all significant assumptions are observable in the market, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and Level 3, defined as unobservable inputs that are not corroborated by market data.

The Company’s financial assets and liabilities recorded at fair value on a recurring basis include derivative instruments and restricted cash and investments. At March 31, 2021 and December 31, 2020, the Company’s derivative instruments included pay-fixed, receive-variable interest rate swaps. The Company’s interest rate swaps are recorded at their estimated fair values based on quotes received from financial institutions that trade these contracts. The Company verifies the reasonableness of these quotes using similar quotes from another financial institution as of each date for which financial statements are prepared. For the Company’s interest rate swaps, the Company also considers the Company’s creditworthiness in its determination of the fair value measurement of these instruments in a net liability position and the counterparties’ creditworthiness in its determination of the fair value measurement of these instruments in a net asset position. The Company’s restricted cash and investments are valued at quoted market prices in active markets for similar assets, which the Company receives from the financial institutions that hold such investments on its behalf. The Company’s restricted cash and investments measured at fair value are invested primarily in money market accounts, bank time deposits, U.S. government and agency securities and Canadian bankers’ acceptance notes.

The Company’s assets and liabilities measured at fair value on a recurring basis at March 31, 2021 and December 31, 2020, were as follows:

	Fair Value Measurement at March 31, 2021 Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Interest rate swap derivative instruments – net liability position	$	(69,154)	$	—	$	(69,154)	$	—
Restricted cash and investments	$	162,847	$	—	$	162,847	$	—
Contingent consideration	$	(66,978)	$	—	$	—	$	(66,978)

	Fair Value Measurement at December 31, 2020 Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Interest rate swap derivative instruments – net liability position	$	(94,689)	$	—	$	(94,689)	$	—
Restricted cash and investments	$	155,176	$	—	$	155,176	$	—
Contingent consideration	$	(71,736)	$	—	$	—	$	(71,736)

The following table summarizes the changes in the fair value for Level 3 liabilities related to contingent consideration for the three months ended March 31, 2021 and 2020:

	Three Months Ended March 31,
	2021		2020
Beginning balance	$	71,736	$	69,484
Payment of contingent consideration recorded at acquisition date		(4,807)		(1,976)
Payment of contingent consideration recorded in earnings		(520)		—
Adjustments to contingent consideration		89		—
Interest accretion expense		495		416
Foreign currency translation adjustment		(15)		(325)
Ending balance	$	66,978	$	67,599

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Other Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2021

Other Comprehensive Income (Loss) [Abstract]

Other Comprehensive Income (Loss)

15.OTHER COMPREHENSIVE INCOME (LOSS)

Other comprehensive income (loss) includes changes in the fair value of interest rate swaps that qualify for hedge accounting. The components of other comprehensive income (loss) and related tax effects for the three months ended March 31, 2021 and 2020 are as follows:

	Three Months Ended March 31, 2021
	Gross		Tax Effect		Net of Tax
Interest rate swap amounts reclassified into interest expense	$	4,796	$	(1,271)	$	3,525
Changes in fair value of interest rate swaps		20,739		(5,496)		15,243
Foreign currency translation adjustment		28,054		—		28,054
	$	53,589	$	(6,767)	$	46,822

	Three Months Ended March 31, 2020
	Gross		Tax Effect		Net of Tax
Interest rate swap amounts reclassified into interest expense	$	(440)	$	117	$	(323)
Changes in fair value of interest rate swaps		(58,026)		15,377		(42,649)
Foreign currency translation adjustment		(184,717)		—		(184,717)
	$	(243,183)	$	15,494	$	(227,689)

A rollforward of the amounts included in AOCIL, net of taxes, for the three months ended March 31, 2021 and 2020, is as follows:

			Foreign		Accumulated
			Currency		Other
	Interest		Translation		Comprehensive
	Rate Swaps		Adjustment		Income (Loss)
Balance at December 31, 2020	$	(69,596)	$	68,945	$	(651)
Amounts reclassified into earnings		3,525		—		3,525
Changes in fair value		15,243		—		15,243
Foreign currency translation adjustment		—		28,054		28,054
Balance at March 31, 2021	$	(50,828)	$	96,999	$	46,171

			Foreign		Accumulated
			Currency		Other
	Interest		Translation		Comprehensive
	Rate Swaps		Adjustment		Income (Loss)
Balance at December 31, 2019	$	(29,255)	$	18,292	$	(10,963)
Amounts reclassified into earnings		(323)		—		(323)
Changes in fair value		(42,649)		—		(42,649)
Foreign currency translation adjustment		—		(184,717)		(184,717)
Balance at March 31, 2020	$	(72,227)	$	(166,425)	$	(238,652)

See Note 11 for further discussion on the Company’s derivative instruments.

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Shareholders' Equity

3 Months Ended

Mar. 31, 2021

Shareholders' Equity [Abstract]

Shareholders' Equity

16.SHAREHOLDERS’ EQUITY

Share-Based Compensation

Restricted Share Units

A summary of activity related to restricted share units (“RSUs”) during the three-month period ended March 31, 2021, is presented below:

	Unvested Shares
Outstanding at December 31, 2020	772,625
Granted	447,301
Forfeited	(13,569)
Vested and issued	(340,529)
Outstanding at March 31, 2021	865,828

The weighted average grant-date fair value per share for the common shares underlying the RSUs granted during the three-month period ended March 31, 2021 was $97.56.

Recipients of the Company’s RSUs who participate in the Company’s Nonqualified Deferred Compensation Plan may have elected in years prior to 2015 to defer some or all of their RSUs as they vest until a specified date or dates they choose. At the end of the deferral periods, unless a qualified participant makes certain other elections, the Company issues to recipients who deferred their RSUs common shares of the Company underlying the deferred RSUs. At March 31, 2021 and 2020, the Company had 158,610 and 190,201 vested deferred RSUs outstanding, respectively.

Performance-Based Restricted Share Units

A summary of activity related to performance-based restricted share units (“PSUs”) during the three-month period ended March 31, 2021, is presented below:

	Unvested Shares
Outstanding at December 31, 2020	434,558
Granted	116,784
Forfeited	(5,048)
Vested and issued	(154,251)
Outstanding at March 31, 2021	392,043

During the three months ended March 31, 2021, the Company’s Compensation Committee granted PSUs with three-year performance-based metrics that the Company must meet before those awards may be earned, and the performance period for those grants ends on December 31, 2023. The Compensation Committee will determine the achievement of performance results and corresponding vesting of PSUs for each performance period. The weighted average grant-date fair value per share for the common shares underlying all PSUs granted during the three-month period ended March 31, 2021 was $96.99.

Deferred Share Units

A summary of activity related to deferred share units (“DSUs”) during the three-month period ended March 31, 2021, is presented below:

	Vested Shares
Outstanding at December 31, 2020	21,586
Granted	2,856
Outstanding at March 31, 2021	24,442

The DSUs consist of a combination of DSU grants outstanding under the Progressive Waste share-based compensation plans that were continued by the Company following the Progressive Waste acquisition and DSUs granted by the Company since the Progressive Waste acquisition. The weighted average grant-date fair value per share for the common shares underlying the DSUs granted during the three-month period ended March 31, 2021 was $99.80.

Other Restricted Share Units

RSU grants outstanding under the Progressive Waste share-based compensation plans were continued by the Company following the Progressive Waste acquisition and allow for the issuance of shares or cash settlement to employees upon vesting. A summary of activity related to Progressive Waste RSUs during the three-month period ended March 31, 2021, is presented below:

Outstanding at December 31, 2020	66,554
Cash settled	(1,318)
Outstanding at March 31, 2021	65,236

No RSUs under the Progressive Waste share-based compensation plans were granted subsequent to June 1, 2016.  All remaining RSUs were vested as of March 31, 2019.

Share Based Options

Share based options outstanding under the Progressive Waste share-based compensation plans were continued by the Company following the Progressive Waste acquisition and allow for the issuance of shares or cash settlement to employees upon vesting. A summary of activity related to Progressive Waste share based options during the three-month period ended March 31, 2021, is presented below:

Outstanding at December 31, 2020	51,200
Cash settled	(3,131)
Outstanding at March 31, 2021	48,069

No share based options under the Progressive Waste share-based compensation plans were granted subsequent to June 1, 2016. All outstanding share based options were vested as of December 31, 2017.

Employee Share Purchase Plan

On May 15, 2020, the Company’s shareholders approved the 2020 Employee Share Purchase Plan (the “ESPP”). Under the ESPP, qualified employees may elect to have payroll deductions withheld from their eligible compensation on

each payroll date in amounts equal to or greater than one percent (1%) but not in excess of ten percent (10%) of eligible compensation in order to purchase the Company’s common shares under certain terms and subject to certain restrictions set forth in the ESPP. The exercise price is equal to 95% of the closing price of the Company’s common shares on the last day of the relevant offering period, subject to certain restrictions. The maximum number of shares that may be issued under the ESPP is 1,000,000. As of March 31, 2021, none of the Company’s common shares have been purchased under the ESPP.

Normal Course Issuer Bid

On July 23, 2020, the Board of Directors of the Company approved, subject to receipt of regulatory approvals, the annual renewal of the Company’s normal course issuer bid (the “NCIB”) to purchase up to 13,144,773 of the Company’s common shares during the period of August 10, 2020 to August 9, 2021 or until such earlier time as the NCIB is completed or terminated at the option of the Company. The renewal followed the conclusion of the Company’s NCIB that expired August 7, 2020. The Company received Toronto Stock Exchange (the “TSX”) approval for its annual renewal of the NCIB on August 5, 2020.  Under the NCIB, the Company may make share repurchases only in the open market, including on the New York Stock Exchange (the “NYSE”), the TSX, and/or alternative Canadian trading systems, at the prevailing market price at the time of the transaction.

In accordance with TSX rules, any daily repurchases made through the TSX and alternative Canadian trading systems is limited to a maximum of 112,638 common shares, which represents 25% of the average daily trading volume on the TSX of 450,555 common shares for the period from February 1, 2020 to July 31, 2020. The TSX rules also allow the Company to purchase, once a week, a block of common shares not owned by any insiders, which may exceed such daily limit. The maximum number of shares that can be purchased per day on the NYSE will be 25% of the average daily trading volume for the four calendar weeks preceding the date of purchase, subject to certain exceptions for block purchases.

The timing and amounts of any repurchases pursuant to the NCIB will depend on many factors, including the Company’s capital structure, the market price of the common shares and overall market conditions. All common shares purchased under the NCIB shall be immediately cancelled following their repurchase.

For the three months ended March 31, 2021, the Company repurchased 666,184 common shares pursuant to the NCIB at an aggregate cost of $65,999.  During the three months ended March 31, 2020, the Company repurchased 1,271,977 common shares pursuant to the NCIB at an aggregate cost of $105,654.  As of March 31, 2021, the remaining maximum number of shares available for repurchase under the current NCIB was 12,478,589.

Cash Dividend

In October 2020, the Company announced that its Board of Directors increased its regular quarterly cash dividend by $0.02, from $0.185 to $0.205 per Company common share. Cash dividends of $53,909 and $48,018 were paid during the three months ended March 31, 2021 and 2020, respectively.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2021

Commitments and Contingencies [Abstract]

Commitments and Contingencies

17.COMMITMENTS AND CONTINGENCIES

In the normal course of its business and as a result of the extensive governmental regulation of the solid waste and E&P waste industries, the Company is subject to various judicial and administrative proceedings involving Canadian regulatory authorities as well as U.S. federal, state and local agencies. In these proceedings, an agency may subpoena the Company for records, or seek to impose fines on the Company or revoke or deny renewal of an authorization held by the Company, including an operating permit. From time to time, the Company may also be subject to actions brought by special interest or other groups, adjacent landowners or residents in connection with the permitting and licensing of

landfills, transfer stations, and E&P waste treatment, recovery and disposal operations, or alleging environmental damage or violations of the permits and licenses pursuant to which the Company operates. The Company uses $1,000 as a threshold (up from the previously required threshold of $300) for disclosing environmental matters involving potential monetary sanctions.

In addition, the Company is a party to various claims and suits pending for alleged damages to persons and property, alleged violations of certain laws and alleged liabilities arising out of matters occurring during the normal operation of the Company’s business. Except as noted in the matters described below, as of March 31, 2021, there is no current proceeding or litigation involving the Company or its property that the Company believes could have a material adverse effect on its business, financial condition, results of operations or cash flows.

Lower Duwamish Waterway Superfund Site Allocation Process

In November 2012, the Company’s subsidiary, Northwest Container Services, Inc. (“NWCS”), was named by the U.S. Environmental Protection Agency, Region 10 (the “EPA”) as a potentially responsible party (“PRP”), along with more than 100 others, under the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA” or the “Superfund” law) with respect to the Lower Duwamish Waterway Superfund Site (the “LDW Site”).  Listed on the National Priorities List in 2001, the LDW Site is a five-mile stretch of the Duwamish River flowing into Elliott Bay in Seattle, Washington.  A group of PRPs known as the Lower Duwamish Working Group (“LDWG”) and consisting of the City of Seattle, King County, the Port of Seattle, and Boeing Company conducted a Remedial Investigation/Feasibility Study for the LDW Site.  On December 2, 2014, the EPA issued its Record of Decision (the “ROD”) describing the selected clean-up remedy, and therein estimated that clean-up costs (in present value dollars as of November 2014) would total approximately $342,000. However, it is possible that additional costs could be incurred based upon various factors. The EPA estimates that it will take seven years to implement the clean-up. The ROD also requires ten years of monitoring following the clean-up, and provides that if clean-up goals have not been met by the end of this period, then additional clean-up activities, at additional cost, may be required at that time. Implementation of the clean-up will not begin until after the ongoing Early Action Area (“EAA”) clean-ups have been completed.  Typically, costs for monitoring may be in addition to those expended for the clean-up.  While three of the EAA clean-ups have been completed to date, some work remains to be done on three other EAAs.  Implementation of the clean-up also must await additional baseline sampling throughout the LDW Site and the preparation of a remedial design for performing the clean-up.  On April 27, 2016, the LDWG entered into a third amendment of its Administrative Order on Consent with the EPA (the “AOC 3”) in which it agreed to perform the additional baseline sediment sampling and certain technical studies needed to prepare the actual remedial design.  The LDWG and the EPA entered into a fourth amendment to the AOC in July 2018 primarily addressing development of a proposed remedy for the upper reach of the LDW Site, river mile 3 to river mile 5.  At the April 24, 2019 stakeholders meeting the LDWG projected completion of the remedial design for the upper reach could be completed by August 2024.  In late September 2020, the EPA informed attorneys for several PRPs that the work may be completed by late 2023 or early 2024.

On August 16, 2016, the EPA sent individual letters to each of the PRPs for the LDW Site, including NWCS, stating that it expected to initiate negotiations with all PRPs in early 2018 relating to a Remedial Design/Remedial Action (“RD/RA”) Consent Decree.  An RD/RA Consent Decree provides for the cleanup of the entire site and is often referred to as a “global settlement.”  In August 2014, NWCS entered into an Alternative Dispute Resolution Memorandum of Agreement with several dozen other PRPs and a neutral allocator to conduct a confidential and non-binding allocation of certain past response costs allegedly incurred at the LDW Site as well as the anticipated future response costs associated with the clean-up.  In March 2017, the PRPs provided the EPA with notice that the allocation was not scheduled to conclude until mid-2019.  Later extensions pushed the allocation conclusion date first to early 2020 and then to July 2020.  The EPA was informed of those changes.  The allocator’s most recent projection is that the preliminary allocation report may be issued by the end of April 2021.  The final allocation report will be issued only after the allocator considers comments of

the parties on the preliminary report.  In September 2020, the EPA informed attorneys for several PRPs that the EPA intends to initiate settlement negotiations in 2021, and the EPA was informed of the delay in the issuance of the preliminary allocation report. More recently, the EPA indicated that settlement negotiations would begin in 2022.  NWCS is defending itself vigorously in this confidential allocation process.  At this point, the Company is not able to determine the likelihood of the allocation process being completed as intended by the participating PRPs, its specific allocation, or the likelihood of the parties then negotiating a global settlement with the EPA.  Thus, NWCS cannot reasonably determine the likelihood of any outcome in this matter, including its potential liability.

On February 11, 2016, NWCS received a letter (the “Letter”) from the United States Department of Commerce, National Oceanic and Atmospheric Administration (“NOAA”), describing certain investigatory activities conducted by the Elliott Bay Trustee Council (the “Council”).  The Council consists of all of the natural resources trustees for the LDW Site as well as two nearby Superfund sites, the Harbor Island site and the Lockheed West site.  The members of the Council include the United States, on behalf of the U.S. National Oceanic and Atmospheric Administration and the U.S. Department of the Interior, the Washington State Department of Ecology, and the Suquamish and Muckleshoot Indian Tribes (together, the “Trustees”).  The Letter appears to allege that NWCS may be a potentially liable party that allegedly contributed to the release of hazardous substances that have injured natural resources at the LDW Site.  Damages to natural resources are in addition to clean-up costs.  The Letter, versions of which NWCS believes were sent to all or a group of the PRPs for the LDW Site, also notified its recipients of their opportunity to participate in the Trustees’ development of an Assessment Plan and the performance of a Natural Resources Damages Assessment (“NRDA”) in accordance with the Assessment Plan for both the LDW Site and the east and west waterways of the Harbor Island site.  NWCS timely responded with correspondence to the NOAA Office of General Counsel, in which it declined the invitation at that time.  NWCS does not know how other PRPs responded to the Letter, and has not received any further communication from NOAA or the Trustees.  The Trustees have not responded to NWCS’ letter.  The Trustees released their Assessment Plan in March 2019.  The Assessment Plan does not set forth a timeline for implementation.  At this point, the Company is not able to determine the likelihood or amount of an assessment of natural resource damages against NWCS in connection with this matter.

Los Angeles County, California Landfill Expansion Litigation

A. Chiquita Canyon, LLC Lawsuit Against Los Angeles County

In October 2004, the Company’s subsidiary, Chiquita Canyon, LLC (“CCL”), then under prior ownership, filed an application (the “Application”) with the County of Los Angeles (the “County”) Department of Regional Planning (“DRP”) for a conditional use permit (the “CUP”) to authorize the continued operation and expansion of the Chiquita Canyon Landfill (the “Landfill”). The Landfill has operated since 1972, and as a regional landfill, accepted over two million tons of materials for disposal and beneficial use in 2020.  The Application requested expansion of the existing waste footprint on CCL’s contiguous property, an increase in maximum elevation, creation of a new entrance and new support facilities, construction of a facility for the County or another third-party operator to host household hazardous waste collection events, designation of an area for mixed organics/composting, and other modifications.

After many years of reviews and delays, upon the recommendation of County staff, the County’s Regional Planning Commission (the “Commission”) approved the Application on April 19, 2017, but imposed operating conditions, fees and exactions that substantially reduce the historical landfill operations and represent a large increase in aggregate taxes and fees. CCL objected to many of the requirements imposed by the Commission.  Current estimates for new costs imposed on CCL under the CUP are in excess of $300,000.

CCL appealed the Commission’s decision to the County Board of Supervisors, but the appeal was not successful.  At a subsequent hearing, on July 25, 2017, the Board of Supervisors approved the CUP.  On October 20, 2017, CCL filed in

the Superior Court of California, County of Los Angeles a verified petition for writ of mandate and complaint against the County and the County Board of Supervisors captioned Chiquita Canyon, LLC v. County of Los Angeles, No. BS171262 (Los Angeles Co. Super Ct.) (the “Complaint”).  The Complaint challenges the terms of the CUP in 13 counts generally alleging that the County violated multiple California and federal statutes and California and federal constitutional protections. CCL seeks the following relief: (a) an injunction and writ of mandate against certain of the CUP’s operational restrictions, taxes and fees, (b) a declaration that the challenged conditions are unconstitutional and in violation of state and federal statutes, (c) reimbursement for any such illegal fees paid under protest, (d) damages, (e) an award of just compensation for a taking, (f) attorney fees, and (g) all other appropriate legal and equitable relief.

Extensive motions practice and an interlocutory appeal occurred in 2018 and 2019 over the permissible scope of CCL’s challenge to the CUP, specifically 13 operational conditions in the CUP. The Superior Court ruled in CCL’s favor on November 13, 2019, finding that the County was estopped from contending that CCL has waived its rights to challenge the legality of the 13 operational conditions. The County sought interlocutory review of the Superior Court’s decision in the Court of Appeal, which denied the County’s petition on February 7, 2020.

Following full briefing and oral argument on June 22, 2020 on six of CCL’s causes of action, the Superior Court issued its decision on July 2, 2020, granting CCL’s petition for writ of mandate in part and denying it in part. CCL prevailed with respect to 12 of the challenged conditions, many of which imposed new fees and exactions on the Landfill.  Before entry of final judgment, the Superior Court will hear CCL’s remaining causes of action.  A cause of action for a taking under the Fifth Amendment of the U.S. Constitution is the subject of a pending motion for leave to amend the Complaint.  Once the Superior Court has entered final judgment, CCL and the County will be permitted to appeal any adverse ruling to the California Court of Appeal.  After entry of final judgment and resolution of any appeals, the Superior Court will issue a writ directing the County Board of Supervisors to set aside its decision on the permit with respect to 12 of the challenged conditions.  The Board will be allowed to make additional findings to support four of those conditions and reconsider its permit decision in light of the Superior Court’s writ.  CCL will continue to vigorously prosecute the lawsuit.  However, at this point, the Company is not able to determine the likelihood of any outcome in this matter.

B. CEQA Lawsuit Against Los Angeles County Challenging Environmental Review for Landfill Expansion

A separate lawsuit involving CCL and the Landfill was filed on August 24, 2017 by community activists alleging that the environmental review underlying the CUP was inadequate under state law. The Val Verde Civic Association, Citizens for Chiquita Canyon Landfill Compliance, and the Santa Clarita Organization for Planning and the Environment filed a petition for writ of mandate in the Superior Court of California, County of Los Angeles against the County, naming CCL as the real party in interest. The lawsuit seeks to overturn the County’s approval of the CUP for the expansion of the Landfill and the certification of the final Environmental Impact Report, arguing that the report violates the California Environmental Quality Act. Pursuant to Condition No. 6 of the CUP, which requires CCL to defend, indemnify, and hold harmless the County, its agents, officers, and employees from any claim or proceeding against the County brought by any third party to attack, set aside, void, or annul the CUP approval, CCL agreed to reimburse the County for its legal costs associated with defense of the lawsuit. As the real party in interest, CCL has a right to notice and an opportunity to be heard in opposition to the petition for writ of mandate. Initial briefs were filed in 2018 and a trial date was set in February 2019, which was later rescheduled and held in August 2019. The court issued a final ruling on October 10, 2019 and a final judgment on December 4, 2019, denying the writ petition in full. One petitioner, Santa Clarita Organization for Planning and the Environment, appealed the judgment. All interested parties filed their briefs by July 1, 2020 and the County did not file an opposition brief.  No amicus or “friend of the court” briefs were filed, so the case was fully briefed on July 1, 2020.  The court heard oral argument on November 18, 2020. The court issued its opinion on February 10, 2021, upholding the trial court’s ruling in full and rejecting the petitioner’s appeal. On February 25, 2021, the Petitioner filed a petition for a rehearing, which the Court of Appeal denied on February 26, 2021. The Petitioner did not file a petition for

review to the California Supreme Court and the time for seeking review has expired. The Court of Appeal decision upholding the County’s Environmental Impact Report and approval of the CUP in full is now final.

C. December 11, 2017 Notice of Violation Regarding Certain CUP Conditions.

The County, through its DRP, issued a Notice of Violation, dated December 11, 2017 (the “NOV”), alleging that CCL violated certain conditions of the CUP, including Condition 79(B)(6) of the CUP by failing to pay an $11,600 Bridge & Thoroughfare Fee (“B&T Fee”) that was purportedly due on July 25, 2017. The alleged B&T fee was ostensibly to fund the construction of transportation infrastructure in the area of the Landfill. At the time the NOV was issued, CCL had already contested the legality of the B&T fee in the October 20, 2017 Complaint filed against the County in Los Angeles County Superior Court, described above under paragraph A (the “CUP lawsuit”).

On January 12, 2018, CCL filed an appeal of the alleged violations in the NOV.  Subsequently, CCL filed additional legal arguments and exhibits contesting the NOV.  On March 6, 2018, a DRP employee designated as hearing officer sustained the NOV, including the $11,600 B&T fee, and imposed an administrative penalty in the amount of $83 and a noncompliance fee of $0.75. A written decision memorializing the hearing officer’s findings and order was issued on July 10, 2018.  On April 13, 2018, CCL filed in the Superior Court of California, County of Los Angeles a Petition for Writ of Administrative Mandamus against the County seeking to overturn the decision sustaining the NOV, contending that the NOV and decision are not supported by the facts or law.  On July 17, 2018, the Court granted CCL leave to pay the $11,600 B&T fee and to amend its Complaint in the CUP lawsuit to reflect the payment under protest, allowing the challenge to the B&T fee under the Mitigation Fee Act to proceed in the CUP lawsuit.  CCL paid the B&T fee under protest on August 10, 2018, and also paid on that date the administrative penalty of $83 and a noncompliance fee of $0.75. The Court indicated that the NOV case would be coordinated with the CUP lawsuit.  The NOV case has been continued multiple times as the CUP lawsuit was adjudicated; it is now set for trial on September 14, 2021.  The Superior Court’s July 2, 2020 decision in the CUP lawsuit upheld the B&T fee against a Mitigation Fee Act challenge, and addressed two other conditions that were also the subject of the NOV, which may impact the scope of the B&T fee/NOV case.  CCL will continue to vigorously prosecute the lawsuit.  However, at this point, the Company is not able to determine the likelihood of any outcome in this matter.

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Subsequent Events

3 Months Ended

Mar. 31, 2021

Subsequent Events [Abstract]

Subsequent Events

18.SUBSEQUENT EVENT

On April 28, 2021, the Company announced that its Board of Directors approved a regular quarterly cash dividend of $0.205 per Company common share. The dividend will be paid on May 26, 2021, to shareholders of record on the close of business on May 12, 2021.

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Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenue [Abstract]

Total Reported Revenues by Service Line

		Three Months Ended March 31,
	2021		2020
Commercial	$	426,395	$	416,507
Residential		400,819		365,731
Industrial and construction roll off		209,258		206,771
Total collection		1,036,472		989,009
Landfill		271,936		266,218
Transfer		189,323		180,765
Recycling		32,448		18,108
E&P		28,012		65,377
Intermodal and other		35,634		30,018
Intercompany		(197,883)		(197,091)
Total	$	1,395,942	$	1,352,404

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Accounts Receivable (Tables)

3 Months Ended

Mar. 31, 2021

Accounts Receivable [Abstract]

Allowance for Credit Loss

	Three Months Ended March 31,
	2021		2020
Beginning balance	$	19,380	$	16,432
Current period provision for expected credit losses		1,915		2,027
Write-offs charged against the allowance		(3,501)		(5,063)
Recoveries collected		1,153		1,932
Impact of changes in foreign currency		23		(156)
Ending balance	$	18,970	$	15,172

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Landfill Accounting (Tables)

3 Months Ended

Mar. 31, 2021

Landfill Accounting [Abstract]

Reconciliation of Final Capping, Closure and Post-Closure Liability Balance

The following is a reconciliation of the Company’s final capping, closure and post-closure liability balance from December 31, 2020 to March 31, 2021:

Final capping, closure and post-closure liability at December 31, 2020	$	301,896
Liability adjustments		(7,134)
Accretion expense associated with landfill obligations		3,655
Closure payments		(3,237)
Foreign currency translation adjustment		562
Final capping, closure and post-closure liability at March 31, 2021	$	295,742

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Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2021

Intangible Assets, Net [Abstract]

Intangible Assets Exclusive of Goodwill

Intangible assets, exclusive of goodwill, consisted of the following at March 31, 2021:

	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	601,120	$	(245,880)	$	—	$	355,240
Customer lists		638,674		(400,314)		—		238,360
Permits and other		379,785		(83,178)		—		296,607
		1,619,579		(729,372)		—		890,207
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		172,056		—		—		172,056
Material recycling facility permits		42,283		—		—		42,283
E&P facility permits		59,855		—		(38,507)		21,348
		274,194		—		(38,507)		235,687
Intangible assets, exclusive of goodwill	$	1,893,773	$	(729,372)	$	(38,507)	$	1,125,894

Intangible assets, exclusive of goodwill, consisted of the following at December 31, 2020:

	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	600,674	$	(234,972)	$	—	$	365,702
Customer lists		636,035		(382,020)		—		254,015
Permits and other		378,952		(79,277)		—		299,675
		1,615,661		(696,269)		—		919,392
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		172,056		—		—		172,056
Material recycling facility permits		42,283		—		—		42,283
E&P facility permits		59,855		—		(38,507)		21,348
		274,194		—		(38,507)		235,687
Intangible assets, exclusive of goodwill	$	1,889,855	$	(696,269)	$	(38,507)	$	1,155,079

Estimated Future Amortization Expense of Amortizable Intangible Assets

Estimated future amortization expense for the next five years relating to finite-lived intangible assets is as follows:

For the year ending December 31, 2021	$	126,891
For the year ending December 31, 2022	$	108,169
For the year ending December 31, 2023	$	92,115
For the year ending December 31, 2024	$	79,163
For the year ending December 31, 2025	$	66,880

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Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2021

Long-Term Debt [Abstract]

Long-Term Debt

The following table presents the Company’s long-term debt as of March 31, 2021 and December 31, 2020:

	March 31,		December 31,
	2021		2020
Revolver under Credit Agreement, bearing interest ranging from 1.31% to 1.61% (a)	$	203,976	$	203,927
Term loan under Credit Agreement, bearing interest at 1.31% (a)		650,000		650,000
4.64% Senior Notes due 2021 (b)		100,000		100,000
2.39% Senior Notes due 2021 (c)		150,000		150,000
3.09% Senior Notes due 2022		125,000		125,000
2.75% Senior Notes due 2023		200,000		200,000
3.24% Senior Notes due 2024		150,000		150,000
3.41% Senior Notes due 2025		375,000		375,000
3.03% Senior Notes due 2026		400,000		400,000
3.49% Senior Notes due 2027		250,000		250,000
4.25% Senior Notes due 2028		500,000		500,000
3.50% Senior Notes due 2029		500,000		500,000
2.60% Senior Notes due 2030		600,000		600,000
3.05% Senior Notes due 2050		500,000		500,000
Notes payable to sellers and other third parties, bearing interest ranging from 2.42% to 10.35%, principal and interest payments due periodically with due dates ranging from 2028 to 2036 (a)		38,008		43,131
Finance leases, bearing interest at 1.89% with a lease expiration date of 2026 (a)		9,822		3,754
		4,751,806		4,750,812
Less – current portion		(105,386)		(8,268)
Less – unamortized debt discount and issuance costs		(32,818)		(33,866)
	$	4,613,602	$	4,708,678

____________________

(a) Interest rates represent the interest rates in effect at March 31, 2021.

(b) The Company redeemed the 4.64% Senior Notes due 2021 (the “2021 Senior Notes”) on April 1, 2021.

(c) The Company has recorded the 2.39% Senior Notes due 2021 (the “New 2021 Senior Notes”) in long-term debt in the table above as the Company has the intent and ability to redeem the New 2021 Senior Notes on June 1, 2021 using borrowings under the Credit Agreement.

Details of the Company's Credit Agreement

Details of the Credit Agreement are as follows:

	March 31,			December 31,
	2021			2020
Revolver under Credit Agreement
Available	$	1,240,137		$	1,238,937
Letters of credit outstanding	$	118,387		$	119,636
Total amount drawn, as follows:	$	203,976		$	203,927
Amount drawn - U.S. LIBOR rate loan	$	200,000		$	200,000
Interest rate applicable - U.S. LIBOR rate loan		1.31	%		1.35	%
Amount drawn – Canadian bankers’ acceptance	$	3,976		$	3,927
Interest rate applicable – Canadian bankers’ acceptance		1.61	%		1.66	%
Commitment – rate applicable		0.15	%		0.15	%
Term loan under Credit Agreement
Amount drawn – U.S. based LIBOR loan	$	650,000		$	650,000
Interest rate applicable – U.S. based LIBOR loan		1.31	%		1.35	%

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Summary of Financial Information Concerning Company's Reportable Segments

Summarized financial information concerning the Company’s reportable segments for the three months ended March 31, 2021 and 2020, is shown in the following tables:

Three Months Ended			Intercompany		Reported		Segment
March 31, 2021	Revenue		Revenue(b)		Revenue		EBITDA(c)
Southern	$	382,687	$	(44,526)	$	338,161	$	93,424
Eastern		398,830		(62,369)		336,461		89,121
Western		332,820		(35,816)		297,004		93,825
Central		267,702		(32,316)		235,386		79,040
Canada		211,786		(22,856)		188,930		73,940
Corporate(a)		—		—		—		(750)
	$	1,593,825	$	(197,883)	$	1,395,942	$	428,600

Three Months Ended			Intercompany		Reported		Segment
March 31, 2020	Revenue		Revenue(b)		Revenue		EBITDA(c)
Southern	$	416,382	$	(47,126)	$	369,256	$	106,319
Eastern		397,000		(64,798)		332,202		84,662
Western		305,436		(33,455)		271,981		81,029
Central		237,570		(29,028)		208,542		73,151
Canada		193,107		(22,684)		170,423		59,398
Corporate(a)		—		—		—		(3,631)
	$	1,549,495	$	(197,091)	$	1,352,404	$	400,928

____________________

(a) The majority of Corporate expenses are allocated to the five operating segments.  Direct acquisition expenses, expenses associated with common shares held in the deferred compensation plan exchanged for other investment options and share-based compensation expenses associated with Progressive Waste share-based grants outstanding at June 1, 2016 that were continued by the Company are not allocated to the five operating segments and comprise the net EBITDA of the Company’s Corporate segment for the periods presented.

(b) Intercompany revenues reflect each segment’s total intercompany sales, including intercompany sales within a segment and between segments. Transactions within and between segments are generally made on a basis intended to reflect the market value of the service.

(c) For those items included in the determination of segment EBITDA, the accounting policies of the segments are the same as those described in the Company’s most recent Annual Report on Form 10-K.

Total Assets for Reportable Segments

Total assets for each of the Company’s reportable segments at March 31, 2021 and December 31, 2020, were as follows:

	March 31,		December 31,
	2021		2020
Southern	$	3,373,593	$	3,402,081
Eastern		3,094,800		3,134,462
Western		1,859,205		1,861,079
Central		2,144,461		2,160,246
Canada		2,552,952		2,544,379
Corporate		1,017,918		890,117
Total Assets	$	14,042,929	$	13,992,364

Changes in Goodwill by Reportable Segment

The following tables show changes in goodwill during the three months ended March 31, 2021 and 2020, by reportable segment:

	Southern		Eastern		Western		Central		Canada		Total
Balance as of December 31, 2020	$	1,532,215	$	1,374,577	$	442,862	$	824,204	$	1,552,792	$	5,726,650
Goodwill acquired		—		—		2,289		—		—		2,289
Goodwill acquisition adjustments		(4)		1,408		—		4,385		(2)		5,787
Impact of changes in foreign currency		—		—		—		—		19,375		19,375
Balance as of March 31, 2021	$	1,532,211	$	1,375,985	$	445,151	$	828,589	$	1,572,165	$	5,754,101

	Southern		Eastern		Western		Central		Canada		Total
Balance as of December 31, 2019	$	1,528,225	$	1,331,180	$	400,037	$	729,470	$	1,521,939	$	5,510,851
Goodwill acquired		—		—		—		3,741		—		3,741
Goodwill acquisition adjustments		195		(524)		70		—		—		(259)
Impact of changes in foreign currency		—		—		—		—		(128,492)		(128,492)
Balance as of March 31, 2020	$	1,528,420	$	1,330,656	$	400,107	$	733,211	$	1,393,447	$	5,385,841

Reconciliation of Primary Measure of Segment Profitability to Income Before Income Tax Provision

A reconciliation of the Company’s primary measure of segment profitability (segment EBITDA) to Income before income tax provision in the Condensed Consolidated Statements of Net Income is as follows:

	Three Months Ended
	March 31,
	2021		2020
Southern segment EBITDA	$	93,424	$	106,319
Eastern segment EBITDA		89,121		84,662
Western segment EBITDA		93,825		81,029
Central segment EBITDA		79,040		73,151
Canada segment EBITDA		73,940		59,398
Subtotal reportable segments		429,350		404,559
Unallocated corporate overhead		(750)		(3,631)
Depreciation		(157,402)		(150,821)
Amortization of intangibles		(32,192)		(31,638)
Impairments and other operating items		(634)		(1,506)
Interest expense		(42,425)		(37,990)
Interest income		1,103		2,175
Other income (expense), net		3,548		(9,521)
Income before income tax provision	$	200,598	$	171,627

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Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2021

Fair Value of Derivative Instrument Designated as Cash Flow Hedges

The fair values of derivative instruments designated as cash flow hedges as of March 31, 2021, were as follows:

Derivatives Designated as Cash	Asset Derivatives			Liability Derivatives
Flow Hedges	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swaps	Prepaid expenses and other current assets	$	—	Accrued liabilities(a)	$	(19,778)
				Other long-term liabilities		(49,376)
Total derivatives designated as cash flow hedges		$	—		$	(69,154)

____________________

(a)Represents the estimated amount of the existing unrealized losses on interest rate swaps as of March 31, 2021 (based on the interest rate yield curve at that date), included in AOCIL expected to be reclassified into pre-tax earnings within the next 12 months. The actual amounts reclassified into earnings are dependent on future movements in interest rates.

The fair values of derivative instruments designated as cash flow hedges as of December 31, 2020, were as follows:

Derivatives Designated as Cash	Asset Derivatives			Liability Derivatives
Flow Hedges	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swaps	Prepaid expenses and other current assets	$	—	Accrued liabilities	$	(20,023)
				Other long-term liabilities		(74,666)
Total derivatives designated as cash flow hedges		$	—		$	(94,689)

Impact of Cash Flow Hedges on Results of Operations, Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss)

The following table summarizes the impact of the Company’s cash flow hedges on the results of operations, comprehensive income (loss) and AOCIL for the three months ended March 31, 2021 and 2020:

Derivatives					Statement of	Amount of (Gain) or Loss Reclassified
Designated as Cash	Amount of Gain or (Loss) Recognized				Net Income	from AOCIL into Earnings,
Flow Hedges	as AOCIL on Derivatives, Net of Tax (a)				Classification	Net of Tax (b)
	Three Months Ended					Three Months Ended
	March 31,					March 31,
	2021		2020			2021		2020
Interest rate swaps	$	15,243	$	(42,649)	Interest expense	$	3,525	$	(323)

____________________

(a)In accordance with the derivatives and hedging guidance, the changes in fair values of interest rate swaps have been recorded in equity as a component of AOCIL. As the critical terms of the interest rate swaps match the underlying debt being hedged, all unrealized changes in fair value are recorded in AOCIL.

(b)Amounts reclassified from AOCIL into earnings related to realized gains and losses on interest rate swaps are recognized when interest payments or receipts occur related to the swap contracts, which correspond to when interest payments are made on the Company’s hedged debt.

Interest Rate Swap [Member]

Company's Derivative Instruments

At March 31, 2021, the Company’s derivative instruments included six interest rate swap agreements as follows:

			Fixed		Variable
	Notional		Interest		Interest Rate
Date Entered	Amount		Rate Paid*		Received	Effective Date	Expiration Date
August 2017	$	100,000	1.900	%	1-month LIBOR	July 2019	July 2022
August 2017	$	200,000	2.200	%	1-month LIBOR	October 2020	October 2025
August 2017	$	150,000	1.950	%	1-month LIBOR	February 2020	February 2023
June 2018	$	200,000	2.925	%	1-month LIBOR	October 2020	October 2025
June 2018	$	200,000	2.925	%	1-month LIBOR	October 2020	October 2025
December 2018	$	200,000	2.850	%	1-month LIBOR	July 2022	July 2027

____________________

* Plus applicable margin.

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Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2021

Fair Value [Abstract]

Carrying Values and Fair Values of Debt Instruments

	Carrying Value at				Fair Value* at
	March 31,		December 31,		March 31,		December 31,
	2021		2020		2021		2020
4.64% Senior Notes due 2021	$	100,000	$	100,000	$	100,010	$	100,850
2.39% Senior Notes due 2021	$	150,000	$	150,000	$	150,363	$	150,695
3.09% Senior Notes due 2022	$	125,000	$	125,000	$	128,420	$	128,482
2.75% Senior Notes due 2023	$	200,000	$	200,000	$	206,447	$	206,204
3.24% Senior Notes due 2024	$	150,000	$	150,000	$	157,859	$	158,140
3.41% Senior Notes due 2025	$	375,000	$	375,000	$	398,579	$	403,025
3.03% Senior Notes due 2026	$	400,000	$	400,000	$	416,544	$	424,874
3.49% Senior Notes due 2027	$	250,000	$	250,000	$	264,697	$	271,198
4.25% Senior Notes due 2028	$	500,000	$	500,000	$	563,500	$	597,050
3.50% Senior Notes due 2029	$	500,000	$	500,000	$	536,050	$	570,450
2.60% Senior Notes due 2030	$	600,000	$	600,000	$	603,240	$	644,520
3.05% Senior Notes due 2050	$	500,000	$	500,000	$	471,600	$	540,050

____________________

*Senior Notes are classified as Level 2 within the fair value hierarchy. Fair value inputs include third-party calculations of the market interest rate of notes with similar ratings in similar industries over the remaining note terms.

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Net Income Per Share Information (Tables)

3 Months Ended

Mar. 31, 2021

Net Income Per Share Information [Abstract]

Basic and Diluted Net Income Per Common Share

The following table sets forth the calculation of the numerator and denominator used in the computation of basic and diluted net income per common share attributable to the Company’s shareholders for the three months ended March 31, 2021 and 2020:

	Three Months Ended
	2021		2020
Numerator:
Net income attributable to Waste Connections for basic and diluted earnings per share	$	160,309	$	143,035
Denominator:
Basic shares outstanding		262,697,487		263,790,364
Dilutive effect of equity-based awards		459,168		562,794
Diluted shares outstanding		263,156,655		264,353,158

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2021

Fair Value [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The Company’s assets and liabilities measured at fair value on a recurring basis at March 31, 2021 and December 31, 2020, were as follows:

	Fair Value Measurement at March 31, 2021 Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Interest rate swap derivative instruments – net liability position	$	(69,154)	$	—	$	(69,154)	$	—
Restricted cash and investments	$	162,847	$	—	$	162,847	$	—
Contingent consideration	$	(66,978)	$	—	$	—	$	(66,978)

	Fair Value Measurement at December 31, 2020 Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Interest rate swap derivative instruments – net liability position	$	(94,689)	$	—	$	(94,689)	$	—
Restricted cash and investments	$	155,176	$	—	$	155,176	$	—
Contingent consideration	$	(71,736)	$	—	$	—	$	(71,736)

Fair Value for Level 3 Liabilities

The following table summarizes the changes in the fair value for Level 3 liabilities related to contingent consideration for the three months ended March 31, 2021 and 2020:

	Three Months Ended March 31,
	2021		2020
Beginning balance	$	71,736	$	69,484
Payment of contingent consideration recorded at acquisition date		(4,807)		(1,976)
Payment of contingent consideration recorded in earnings		(520)		—
Adjustments to contingent consideration		89		—
Interest accretion expense		495		416
Foreign currency translation adjustment		(15)		(325)
Ending balance	$	66,978	$	67,599

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Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2021

Other Comprehensive Income (Loss) [Abstract]

Components of Other Comprehensive Income (Loss)

	Three Months Ended March 31, 2021
	Gross		Tax Effect		Net of Tax
Interest rate swap amounts reclassified into interest expense	$	4,796	$	(1,271)	$	3,525
Changes in fair value of interest rate swaps		20,739		(5,496)		15,243
Foreign currency translation adjustment		28,054		—		28,054
	$	53,589	$	(6,767)	$	46,822

	Three Months Ended March 31, 2020
	Gross		Tax Effect		Net of Tax
Interest rate swap amounts reclassified into interest expense	$	(440)	$	117	$	(323)
Changes in fair value of interest rate swaps		(58,026)		15,377		(42,649)
Foreign currency translation adjustment		(184,717)		—		(184,717)
	$	(243,183)	$	15,494	$	(227,689)

Amounts Included in Accumulated Other Comprehensive Income (Loss)

A rollforward of the amounts included in AOCIL, net of taxes, for the three months ended March 31, 2021 and 2020, is as follows:

			Foreign		Accumulated
			Currency		Other
	Interest		Translation		Comprehensive
	Rate Swaps		Adjustment		Income (Loss)
Balance at December 31, 2020	$	(69,596)	$	68,945	$	(651)
Amounts reclassified into earnings		3,525		—		3,525
Changes in fair value		15,243		—		15,243
Foreign currency translation adjustment		—		28,054		28,054
Balance at March 31, 2021	$	(50,828)	$	96,999	$	46,171

			Foreign		Accumulated
			Currency		Other
	Interest		Translation		Comprehensive
	Rate Swaps		Adjustment		Income (Loss)
Balance at December 31, 2019	$	(29,255)	$	18,292	$	(10,963)
Amounts reclassified into earnings		(323)		—		(323)
Changes in fair value		(42,649)		—		(42,649)
Foreign currency translation adjustment		—		(184,717)		(184,717)
Balance at March 31, 2020	$	(72,227)	$	(166,425)	$	(238,652)

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Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2021

Restricted Stock Units (RSUs) [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Activity Related to Restricted Share Units

A summary of activity related to restricted share units (“RSUs”) during the three-month period ended March 31, 2021, is presented below:

	Unvested Shares
Outstanding at December 31, 2020	772,625
Granted	447,301
Forfeited	(13,569)
Vested and issued	(340,529)
Outstanding at March 31, 2021	865,828

Performance Shares [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Performance-Based Restricted Share Units Activity and Related Information

A summary of activity related to performance-based restricted share units (“PSUs”) during the three-month period ended March 31, 2021, is presented below:

	Unvested Shares
Outstanding at December 31, 2020	434,558
Granted	116,784
Forfeited	(5,048)
Vested and issued	(154,251)
Outstanding at March 31, 2021	392,043

Deferred Share Units [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Activity Related to Restricted Share Units

A summary of activity related to deferred share units (“DSUs”) during the three-month period ended March 31, 2021, is presented below:

	Vested Shares
Outstanding at December 31, 2020	21,586
Granted	2,856
Outstanding at March 31, 2021	24,442

Progressive Waste Solutions Ltd. [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Stock Option Activity and Related Information

Outstanding at December 31, 2020	51,200
Cash settled	(3,131)
Outstanding at March 31, 2021	48,069

Progressive Waste Solutions Ltd. [Member] | Restricted Stock Units (RSUs) [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Activity Related to Restricted Share Units

Outstanding at December 31, 2020	66,554
Cash settled	(1,318)
Outstanding at March 31, 2021	65,236

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New Accounting Standards (Adoption of New Standard) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
New Accounting Standards [Abstract]
Operating lease right-of-use assets	$ 174,635	$ 170,923
Total assets	14,042,929	13,992,364
Current portion of operating lease liabilities	35,699	30,671
Total current liabilities	1,106,886	1,028,654
Long-term portion of operating lease liabilities	146,018	147,223
Deferred income taxes	776,498	760,044
Total liabilities	7,101,056	7,128,926
Retained earnings	2,765,401	2,659,001
Total liabilities and equity	$ 14,042,929	$ 13,992,364

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Revenue (Total Reported Revenues by Service Line) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue from External Customer [Line Items]
Revenues	$ 1,395,942	$ 1,352,404
Reportable Segments [Member] | Collection [Member]
Revenue from External Customer [Line Items]
Revenues	1,036,472	989,009
Reportable Segments [Member] | Commercial [Member] | Collection [Member]
Revenue from External Customer [Line Items]
Revenues	426,395	416,507
Reportable Segments [Member] | Residential [Member] | Collection [Member]
Revenue from External Customer [Line Items]
Revenues	400,819	365,731
Reportable Segments [Member] | Industrial and Construction Roll Off [Member] | Collection [Member]
Revenue from External Customer [Line Items]
Revenues	209,258	206,771
Reportable Segments [Member] | Landfill [Member]
Revenue from External Customer [Line Items]
Revenues	271,936	266,218
Reportable Segments [Member] | Transfer [Member]
Revenue from External Customer [Line Items]
Revenues	189,323	180,765
Reportable Segments [Member] | Recycling [Member]
Revenue from External Customer [Line Items]
Revenues	32,448	18,108
Reportable Segments [Member] | E&P [Member]
Revenue from External Customer [Line Items]
Revenues	28,012	65,377
Reportable Segments [Member] | Intermodal and Other [Member]
Revenue from External Customer [Line Items]
Revenues	35,634	30,018
Intercompany Revenue [Member]
Revenue from External Customer [Line Items]
Revenues	$ (197,883)	$ (197,091)

XML

Revenue (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Capitalized contract costs	$ 18,954	$ 19,669
Minimum [Member]
Estimated life of relevant customer relationship	1 year
Maximum [Member]
Estimated life of relevant customer relationship	5 years

XML

Accounts Receivable (Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accounts Receivable [Abstract]
Beginning Balance	$ 19,380	$ 16,432
Current period provision for expected credit losses	1,915	2,027
Write-offs charged against the allowance	(3,501)	(5,063)
Recoveries collected	1,153	1,932
Impact of changes in foreign currency	23	(156)
Ending Balance	$ 18,970	$ 15,172

XML

Landfill Accounting (Narrative) (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021 USD ($) site $ / T	Mar. 31, 2020 USD ($) $ / T	Dec. 31, 2020 USD ($)
Landfill Accounting [Line Items]
Number of landfills owned and operated by company | site	82
Number of landfills operated, not owned, under life-of-site operating agreements | site	5
Number of landfills operated under limited-term operating agreements | site	4
Number of landfills in development stage | site	1
Property and equipment, net	$ 5,232,682		$ 5,284,506
Average remaining landfill life based on permitted capacity and projected annual disposal volumes	28 years
Number of owned landfills the company is seeking to expand | site	9
Number of landfills operated under life-of-site operating agreements that the company is seeking to expand | site	3
Average remaining landfill life based on permitted capacity, projected annual disposal volumes and probable expansion capacity	31 years
Life of Company's owned landfills and landfills operated under life-of-site operating agreements min range	1 year
Life of Company's owned landfills and landfills operated under life of site operating agreements max range	283 years
Percentage of projected annual disposal volume from landfills with remaining lives within threshold period	90.00%
Threshold period used for measurement of projected annual disposal volume from landfills	70 years
Landfill depletion expense	$ 46,137	$ 48,737
Average rate per ton consumed related to landfill depletion at owned landfills and landfills operated under life-of-site agreements | $ / T	4.53	4.49
Accretion expense associated with landfill obligations	$ 3,655	$ 3,849
Average rate per ton consumed related to final capping, closure and post-closure landfill accretion expense | $ / T	0.36	0.36
Restricted cash	$ 105,689		97,095
Restricted investments	56,620		$ 57,516
Liability adjustments	7,134
Landfill [Member]
Landfill Accounting [Line Items]
Property and equipment, net	$ 2,625,877
Inflation rate for purposes of computing layers for final capping, closure and post-closure obligations	2.25%		2.50%
Restricted cash	$ 14,134		$ 12,533
Restricted investments	$ 53,924		$ 54,833
Landfill [Member] | Measurement Input, Discount Rate [Member]
Landfill Accounting [Line Items]
Discount rate for purposes of computing layers for final capping, closure and post-closure obligations	3.25%		4.75%

XML

Landfill Accounting (Reconciliation of Final Capping, Closure and Post-Closure Liability Balance) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Landfill Accounting [Abstract]
Final capping, closure and post-closure liability at the beginning of the period	$ 301,896
Liability adjustments	(7,134)
Accretion expense associated with landfill obligations	3,655	$ 3,849
Closure payments	(3,237)
Foreign currency translation adjustment	562
Final capping, closure and post-closure liability at the end of the period	$ 295,742

XML

Intangible Assets, Net (Intangible Assets Exclusive of Goodwill) (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 1,619,579	$ 1,615,661
Intangible assets, exclusive of goodwill, gross	1,893,773	1,889,855
Indefinite-lived intangible assets, gross carrying amount	274,194	274,194
Finite-lived intangible assets, accumulated amortization	(729,372)	(696,269)
Intangible assets, accumulated impairment loss	(38,507)	(38,507)
Finite-lived intangible assets, net carrying amount	890,207	919,392
Intangible assets, net, exclusive of goodwill	1,125,894	1,155,079
Indefinite-lived intangible assets	235,687	235,687
Solid Waste Collection and Transportation Permits [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	172,056	172,056
Indefinite-lived intangible assets	172,056	172,056
Material Recycling Facility Permits [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	42,283	42,283
Indefinite-lived intangible assets	42,283	42,283
Exploration and Production Facility Permits [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	59,855	59,855
Intangible assets, accumulated impairment loss	(38,507)	(38,507)
Indefinite-lived intangible assets	21,348	21,348
Long-term Franchise Agreements and Contracts [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	601,120	600,674
Finite-lived intangible assets, accumulated amortization	(245,880)	(234,972)
Finite-lived intangible assets, net carrying amount	355,240	365,702
Customer Lists [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	638,674	636,035
Finite-lived intangible assets, accumulated amortization	(400,314)	(382,020)
Finite-lived intangible assets, net carrying amount	238,360	254,015
Permits and Other [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	379,785	378,952
Finite-lived intangible assets, accumulated amortization	(83,178)	(79,277)
Finite-lived intangible assets, net carrying amount	$ 296,607	$ 299,675

XML

Intangible Assets, Net (Estimated Future Amortization Expense of Amortizable Intangible Assets) (Detail) $ in Thousands	Mar. 31, 2021 USD ($)
Intangible Assets, Net [Abstract]
For the year ending December 31, 2021	$ 126,891
For the year ending December 31, 2022	108,169
For the year ending December 31, 2023	92,115
For the year ending December 31, 2024	79,163
For the year ending December 31, 2025	$ 66,880

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Long-Term Debt (Long-Term Debt) (Detail) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total debt and lease obligations		$ 4,751,806	$ 4,750,812	[1]
Less - current portion		(105,386)	(8,268)	[1]
Finance leases		9,822	3,754	[1]
Less - current portion		(105,386)	(8,268)
Less - unamortized debt discount and issuance costs		(32,818)	(33,866)	[1]
Long-term debt and notes payable		4,613,602	4,708,678
Long-term debt and lease obligation		$ 4,613,602	$ 4,708,678	[1]
Finance leases, expiration year		2026	2026
Finance leases interest rate		1.89%	1.89%
Credit Agreement [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long term debt	[1]	$ 203,976	$ 203,927
Credit Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Line of credit, interest rate		1.31%
Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Line of credit, interest rate		1.61%
Credit Agreement [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Long term debt	[1]	$ 650,000	650,000
Line of credit, interest rate		1.31%
Senior Notes due 2021 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 100,000	$ 100,000	[1]
Interest rate		4.64%	4.64%
Senior note year due		2021
New Senior Notes due 2021 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 150,000	$ 150,000	[1]
Interest rate		2.39%	2.39%
Senior note year due		2021
Senior Notes due 2022 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 125,000	$ 125,000	[1]
Interest rate		3.09%	3.09%
Senior note year due		2022
Senior Notes due 2023 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 200,000	$ 200,000	[1]
Interest rate		2.75%	2.75%
Senior note year due		2023
Senior Notes due 2024 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 150,000	$ 150,000	[1]
Interest rate		3.24%	3.24%
Senior note year due		2024
Senior Notes due 2025 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 375,000	$ 375,000	[1]
Interest rate		3.41%	3.41%
Senior note year due		2025
Senior Notes due 2026 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 400,000	$ 400,000	[1]
Interest rate		3.03%	3.03%
Senior note year due		2026
Senior Notes due 2027 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 250,000	$ 250,000	[1]
Interest rate		3.49%	3.49%
Senior note year due		2027
Senior Notes due 2028 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 500,000	$ 500,000	[1]
Interest rate		4.25%	4.25%
Senior note year due		2028
Senior Notes due 2029 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 500,000	$ 500,000	[1]
Interest rate		3.50%	3.50%
Senior note year due		2029
Senior Notes due 2030 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 600,000	$ 600,000	[1]
Interest rate		2.60%	2.60%
Senior note year due		2030
Senior Notes due 2050 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt		$ 500,000	$ 500,000	[1]
Interest rate		3.05%	3.05%
Senior note year due		2050
Notes Payable to Sellers and Other Third Parties [Member]
Debt Instrument [Line Items]
Long term debt	[1]	$ 38,008	$ 43,131
Debt maturity, start		2028
Debt maturity, end		2036
Notes Payable to Sellers and Other Third Parties [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate	[1]	2.42%
Notes Payable to Sellers and Other Third Parties [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate	[1]	10.35%

[1] Interest rates represent the interest rates in effect at March 31, 2021

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Long-Term Debt (Narrative) (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt discount and issuance costs	$ 32,818	$ 33,866	[1]
Credit Agreement [Member] | Letter of Credit [Member]
Letter of credit	118,387	$ 119,636
Other Facilities Not Affiliated With Credit Agreement [Member] | Letter of Credit [Member]
Letter of credit	$ 6,796
Senior Notes [Member] | Senior Notes due 2029 [Member]
Interest rate	3.50%	3.50%
Senior Notes [Member] | Senior Notes due 2030 [Member]
Interest rate	2.60%	2.60%
Senior Notes [Member] | Senior Notes due 2050 [Member]
Interest rate	3.05%	3.05%

[1] Interest rates represent the interest rates in effect at March 31, 2021

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Long-Term Debt (Details of the Company's Credit Agreement) (Details) - Credit Agreement [Member] - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2021	Dec. 31, 2020
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Available		$ 1,240,137	$ 1,238,937
Amount drawn	[1]	$ 203,976	$ 203,927
Commitment - rate applicable		0.15%	0.15%
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Letter of credit		$ 118,387	$ 119,636
LIBOR [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Amount drawn		$ 200,000	$ 200,000
Interest rate applicable		1.31%	1.35%
LIBOR [Member] | Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Amount drawn		$ 650,000	$ 650,000
Interest rate applicable		1.31%	1.35%
Canadian Bankers Acceptance Loan [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Amount drawn		$ 3,976	$ 3,927
Interest rate applicable		1.61%	1.66%

[1] Interest rates represent the interest rates in effect at March 31, 2021

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Segment Reporting (Narrative) (Detail) - segment	3 Months Ended	6 Months Ended
	Mar. 31, 2021	Jun. 30, 2020
Segment Reporting [Abstract]
Number of contracts or customers accounted for more than 10% of the Company's total revenues at the consolidated or reportable segment level	No single contract or customer accounted for more than 10% of the Company’s total revenues at the consolidated or reportable segment level during the periods presented.
Number of geographic operating segments		5
Number of reportable segments	5

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Segment Reporting (Summary of Financial Information Concerning Company's Reportable Segments) (Detail) $ in Thousands		3 Months Ended
		Mar. 31, 2021 USD ($) segment	Mar. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Revenue		$ 1,395,942	$ 1,352,404
Segment EBITDA	[1]	$ 428,600	400,928
Number of Reportable Segments | segment		5
Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenue		$ 1,593,825	1,549,495
Segment EBITDA		429,350	404,559
Intercompany Revenue [Member]
Segment Reporting Information [Line Items]
Revenue	[2]	(197,883)	(197,091)
Southern [Member]
Segment Reporting Information [Line Items]
Revenue		338,161	369,256
Segment EBITDA	[1]	93,424	106,319
Southern [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenue		382,687	416,382
Southern [Member] | Intercompany Revenue [Member]
Segment Reporting Information [Line Items]
Revenue	[2]	(44,526)	(47,126)
Eastern [Member]
Segment Reporting Information [Line Items]
Revenue		336,461	332,202
Segment EBITDA	[1]	89,121	84,662
Eastern [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenue		398,830	397,000
Eastern [Member] | Intercompany Revenue [Member]
Segment Reporting Information [Line Items]
Revenue	[2]	(62,369)	(64,798)
Western [Member]
Segment Reporting Information [Line Items]
Revenue		297,004	271,981
Segment EBITDA	[1]	93,825	81,029
Western [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenue		332,820	305,436
Western [Member] | Intercompany Revenue [Member]
Segment Reporting Information [Line Items]
Revenue	[2]	(35,816)	(33,455)
Central [Member]
Segment Reporting Information [Line Items]
Revenue		235,386	208,542
Segment EBITDA	[1]	79,040	73,151
Central [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenue		267,702	237,570
Central [Member] | Intercompany Revenue [Member]
Segment Reporting Information [Line Items]
Revenue	[2]	(32,316)	(29,028)
Canada [Member]
Segment Reporting Information [Line Items]
Revenue		188,930	170,423
Segment EBITDA	[1]	73,940	59,398
Canada [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenue		211,786	193,107
Canada [Member] | Intercompany Revenue [Member]
Segment Reporting Information [Line Items]
Revenue	[2]	(22,856)	(22,684)
Corporate [Member]
Segment Reporting Information [Line Items]
Revenue
Segment EBITDA	[1]	$ (750)	(3,631)
Corporate [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenue
Corporate [Member] | Intercompany Revenue [Member]
Segment Reporting Information [Line Items]
Revenue	[2]

[1] For those items included in the determination of segment EBITDA, the accounting policies of the segments are the same as those described in the Company’s most recent Annual Report on Form 10-K.

[2] Intercompany revenues reflect each segment’s total intercompany sales, including intercompany sales within a segment and between segments. Transactions within and between segments are generally made on a basis intended to reflect the market value of the service.

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Segment Reporting (Total Assets for Reportable Segments) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Assets	$ 14,042,929	$ 13,992,364
Southern [Member]
Segment Reporting Information [Line Items]
Assets	3,373,593	3,402,081
Eastern [Member]
Segment Reporting Information [Line Items]
Assets	3,094,800	3,134,462
Western [Member]
Segment Reporting Information [Line Items]
Assets	1,859,205	1,861,079
Central [Member]
Segment Reporting Information [Line Items]
Assets	2,144,461	2,160,246
Canada [Member]
Segment Reporting Information [Line Items]
Assets	2,552,952	2,544,379
Corporate [Member]
Segment Reporting Information [Line Items]
Assets	$ 1,017,918	$ 890,117

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Segment Reporting (Changes in Goodwill by Reportable Segment) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 5,726,650	$ 5,510,851
Goodwill acquired	2,289	3,741
Goodwill acquisition adjustments	5,787	(259)
Impact of changes in foreign currency	19,375	(128,492)
Goodwill, Ending Balance	5,754,101	5,385,841
Southern [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,532,215	1,528,225
Goodwill acquisition adjustments	(4)	195
Goodwill, Ending Balance	1,532,211	1,528,420
Eastern [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,374,577	1,331,180
Goodwill acquisition adjustments	1,408	(524)
Goodwill, Ending Balance	1,375,985	1,330,656
Western [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	442,862	400,037
Goodwill acquired	2,289
Goodwill acquisition adjustments		70
Goodwill, Ending Balance	445,151	400,107
Central [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	824,204	729,470
Goodwill acquired		3,741
Goodwill acquisition adjustments	4,385
Goodwill, Ending Balance	828,589	733,211
Canada [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,552,792	1,521,939
Goodwill acquisition adjustments	(2)
Impact of changes in foreign currency	19,375	(128,492)
Goodwill, Ending Balance	$ 1,572,165	$ 1,393,447

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Segment Reporting (Reconciliation of Primary Measure of Segment Profitability to Income Before Income Tax Provision) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Segment EBITDA	[1]	$ 428,600	$ 400,928
Depreciation		(157,402)	(150,821)
Amortization of intangibles		(32,192)	(31,638)
Impairments and other operating items		(634)	(1,506)
Interest expense		(42,425)	(37,990)
Interest income		1,103	2,175
Other income (expense), net		3,548	(9,521)
Income before income tax provision		200,598	171,627
Southern [Member]
Segment EBITDA	[1]	93,424	106,319
Eastern [Member]
Segment EBITDA	[1]	89,121	84,662
Western [Member]
Segment EBITDA	[1]	93,825	81,029
Central [Member]
Segment EBITDA	[1]	79,040	73,151
Canada [Member]
Segment EBITDA	[1]	73,940	59,398
Corporate [Member]
Segment EBITDA	[1]	(750)	(3,631)
Reportable Segments [Member]
Segment EBITDA		$ 429,350	$ 404,559

[1] For those items included in the determination of segment EBITDA, the accounting policies of the segments are the same as those described in the Company’s most recent Annual Report on Form 10-K.

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Derivative Financial Instruments (Narrative) (Details)	Mar. 31, 2021 agreement
Derivative Financial Instruments [Abstract]
Number of interest rate swap agreements	6

XML

Derivative Financial Instruments (Company's Derivative Instruments of Interest Rate Swaps) (Details) - LIBOR [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)
Interest Rate Swap One [Member]
Derivative [Line Items]
Date entered	2017-08
Notional amount	$ 100,000
Fixed interest rate paid	1.90%
Variable interest rate received	1-month LIBOR
Effective date	2019-07
Expiration date	2022-07
Interest Rate Swap Two [Member]
Derivative [Line Items]
Date entered	2017-08
Notional amount	$ 200,000
Fixed interest rate paid	2.20%
Variable interest rate received	1-month LIBOR
Effective date	2020-10
Expiration date	2025-10
Interest Rate Swap Three [Member]
Derivative [Line Items]
Date entered	2017-08
Notional amount	$ 150,000
Fixed interest rate paid	1.95%
Variable interest rate received	1-month LIBOR
Effective date	2020-02
Expiration date	2023-02
Interest Rate Swap Four [Member]
Derivative [Line Items]
Date entered	2018-06
Notional amount	$ 200,000
Fixed interest rate paid	2.925%
Variable interest rate received	1-month LIBOR
Effective date	2020-10
Expiration date	2025-10
Interest Rate Swap Five [Member]
Derivative [Line Items]
Date entered	2018-06
Notional amount	$ 200,000
Fixed interest rate paid	2.925%
Variable interest rate received	1-month LIBOR
Effective date	2020-10
Expiration date	2025-10
Interest Rate Swap Six [Member]
Derivative [Line Items]
Date entered	2018-12
Notional amount	$ 200,000
Fixed interest rate paid	2.85%
Variable interest rate received	1-month LIBOR
Effective date	2022-07
Expiration date	2027-07

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Derivative Financial Instruments (Fair Values of Derivative Instruments Designated as Cash Flow Hedges) (Details) - USD ($) $ in Thousands	Mar. 31, 2021		Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Derivatives designated as cash flow hedges, liability derivatives	$ (69,154)		$ (94,689)
Interest Rate Swap [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivatives designated as cash flow hedges, liability derivatives	(19,778)	[1]	(20,023)
Interest Rate Swap [Member] | Other Long-term Liabilities [Member}
Derivatives, Fair Value [Line Items]
Derivatives designated as cash flow hedges, liability derivatives	$ (49,376)		$ (74,666)

[1] Represents the estimated amount of the existing unrealized losses on interest rate swaps as of March 31, 2021 (based on the interest rate yield curve at that date), included in AOCIL expected to be reclassified into pre-tax earnings within the next 12 months. The actual amounts reclassified into earnings are dependent on future movements in interest rates.

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Derivative Financial Instruments (Impact of Cash Flow Hedges on Results of Operations, Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized as AOCIL on Derivatives, Net of Tax		$ (15,243)	$ 42,649
Amounts reclassified into earnings, net of taxes		3,525	(323)
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized as AOCIL on Derivatives, Net of Tax		(15,243)	42,649
Amounts reclassified into earnings, net of taxes		(3,525)	323
Cash Flow Hedging [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amounts reclassified into earnings, net of taxes	[1]	3,525	(323)
Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized as AOCIL on Derivatives, Net of Tax	[2]	$ (15,243)	$ (42,649)

[1] Amounts reclassified from AOCIL into earnings related to realized gains and losses on interest rate swaps are recognized when interest payments or receipts occur related to the swap contracts, which correspond to when interest payments are made on the Company’s hedged debt.

[2] In accordance with the derivatives and hedging guidance, the changes in fair values of interest rate swaps have been recorded in equity as a component of AOCIL. As the critical terms of the interest rate swaps match the underlying debt being hedged, all unrealized changes in fair value are recorded in AOCIL.

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Fair Value of Financial Instruments (Carrying Values and Fair Values of Debt Instruments) (Detail) - Senior Notes [Member] - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Dec. 31, 2020
Senior Notes due 2021 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 100,000	$ 100,000	[1]
Fair value of senior notes	[2]	$ 100,010	$ 100,850
Interest rate		4.64%	4.64%
Senior note year due		2021
New Senior Notes due 2021 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 150,000	$ 150,000	[1]
Fair value of senior notes	[2]	$ 150,363	$ 150,695
Interest rate		2.39%	2.39%
Senior note year due		2021
Senior Notes due 2022 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 125,000	$ 125,000	[1]
Fair value of senior notes	[2]	$ 128,420	$ 128,482
Interest rate		3.09%	3.09%
Senior note year due		2022
Senior Notes due 2023 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 200,000	$ 200,000	[1]
Fair value of senior notes	[2]	$ 206,447	$ 206,204
Interest rate		2.75%	2.75%
Senior note year due		2023
Senior Notes due 2024 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 150,000	$ 150,000	[1]
Fair value of senior notes	[2]	$ 157,859	$ 158,140
Interest rate		3.24%	3.24%
Senior note year due		2024
Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 375,000	$ 375,000	[1]
Fair value of senior notes	[2]	$ 398,579	$ 403,025
Interest rate		3.41%	3.41%
Senior note year due		2025
Senior Notes due 2026 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 400,000	$ 400,000	[1]
Fair value of senior notes	[2]	$ 416,544	$ 424,874
Interest rate		3.03%	3.03%
Senior note year due		2026
Senior Notes due 2027 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 250,000	$ 250,000	[1]
Fair value of senior notes	[2]	$ 264,697	$ 271,198
Interest rate		3.49%	3.49%
Senior note year due		2027
Senior Notes due 2028 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 500,000	$ 500,000	[1]
Fair value of senior notes	[2]	$ 563,500	$ 597,050
Interest rate		4.25%	4.25%
Senior note year due		2028
Senior Notes due 2029 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 500,000	$ 500,000	[1]
Fair value of senior notes	[2]	$ 536,050	$ 570,450
Interest rate		3.50%	3.50%
Senior note year due		2029
Senior Notes due 2030 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 600,000	$ 600,000	[1]
Fair value of senior notes	[2]	$ 603,240	$ 644,520
Interest rate		2.60%	2.60%
Senior note year due		2030
Senior Notes due 2050 [Member]
Debt Instrument [Line Items]
Carrying value of senior notes		$ 500,000	$ 500,000	[1]
Fair value of senior notes	[2]	$ 471,600	$ 540,050
Interest rate		3.05%	3.05%
Senior note year due		2050

[1] Interest rates represent the interest rates in effect at March 31, 2021

[2] Senior Notes are classified as Level 2 within the fair value hierarchy. Fair value inputs include third-party calculations of the market interest rate of notes with similar ratings in similar industries over the remaining note terms.

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Net Income Per Share Information (Basic and Diluted Net Income Per Common Share) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net income attributable to Waste Connections for basic and diluted earnings per share	$ 160,309	$ 143,035
Denominator:
Basic shares outstanding	262,697,487	263,790,364
Dilutive effect of equity-based awards	459,168	562,794
Diluted shares outstanding	263,156,655	264,353,158

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Fair Value Measurements (Assets and Liabilities Measured at Fair Value on Recurring Basis) (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash and investments	$ 162,847	$ 155,176
Contingent consideration	(66,978)	(71,736)
Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instrument - net	(69,154)	(94,689)
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash and investments	162,847	155,176
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instrument - net	(69,154)	(94,689)
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	$ (66,978)	$ (71,736)

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Fair Value Measurements (Fair Value for Level 3 Liabilities) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Fair Value [Abstract]
Beginning balance	$ 71,736	$ 69,484
Payment of contingent consideration recorded at acquisition date	(4,807)	(1,976)
Payment of contingent consideration recorded in earnings	(520)
Adjustments to contingent consideration	89
Interest accretion expense	495	416
Foreign currency translation adjustment	(15)	(325)
Ending balance	$ 66,978	$ 67,599
Payment of contingent consideration recorded in earnings, location	us-gaap:InterestExpense

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Other Comprehensive Income (Loss) (Components of Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount of Gain or (Loss) Recognized from AOCIL into Earnings, Net of Tax	$ (3,525)	$ 323
Amount of Gain or (Loss) Recognized as AOCIL on Derivatives, Net of Tax	15,243	(42,649)
Foreign currency translation adjustment, gross	28,054	(184,717)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total	28,054	(184,717)
Other Comprehensive Income (Loss), before Tax	53,589	(243,183)
Other Comprehensive Income (Loss), Tax	(6,767)	15,494
Other comprehensive income (loss), net of tax	46,822	(227,689)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount of Gain or (Loss) Recognized from AOCIL into Earnings, Net of Tax	(3,525)	323
Amount of Gain or (Loss) Recognized as AOCIL on Derivatives, Net of Tax	15,243	(42,649)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total	28,054	(184,717)
Interest Rate Swap [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	4,796	(440)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	(1,271)	117
Amount of Gain or (Loss) Recognized from AOCIL into Earnings, Net of Tax	3,525	(323)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	20,739	(58,026)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	(5,496)	15,377
Amount of Gain or (Loss) Recognized as AOCIL on Derivatives, Net of Tax	$ 15,243	$ (42,649)

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Other Comprehensive Income (Loss) (Amounts Included in Accumulated Other Comprehensive Income (Loss)) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Components of Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent, Beginning Balance	$ 6,859,273
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	28,054	$ (184,717)
Stockholders' Equity Attributable to Parent, Ending Balance	6,937,710
Foreign currency translation adjustment	28,054	(184,717)
Accumulated Other Comprehensive Income (Loss) [Member]
Components of Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent, Beginning Balance	(651)	(10,963)
Amounts reclassified into earnings	3,525	323
Change in fair value	15,243	(42,649)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	28,054	(184,717)
Stockholders' Equity Attributable to Parent, Ending Balance	46,171	(238,652)
Foreign currency translation adjustment	28,054	(184,717)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | Interest Rate Swap [Member]
Components of Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent, Beginning Balance	(69,596)	(29,255)
Amounts reclassified into earnings	3,525	323
Change in fair value	15,243	(42,649)
Stockholders' Equity Attributable to Parent, Ending Balance	(50,828)	(72,227)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | Foreign Currency Translation Adjustment [Member]
Components of Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent, Beginning Balance	68,945	18,292
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	28,054	(184,717)
Stockholders' Equity Attributable to Parent, Ending Balance	96,999	(166,425)
Foreign currency translation adjustment	$ 28,054	$ (184,717)

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Shareholders' Equity (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended	8 Months Ended	11 Months Ended	58 Months Ended
	Oct. 31, 2020	Sep. 30, 2020	Mar. 31, 2021	Mar. 31, 2020	Jul. 31, 2020	Mar. 31, 2021	Mar. 31, 2021	Mar. 31, 2021	Dec. 31, 2020	Jul. 23, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares authorized for repurchase										13,144,773
Share repurchase plan expiration date						Aug. 09, 2021
Daily repurchase of shares, maximum					112,638
Average daily trading volume during period					450,555
Repurchase of common stock (shares)			666,184	1,271,977
Aggregate cost of stock repurchased			$ 65,999	$ 105,654
Maximum remaining number of shares available for repurchase			12,478,589			12,478,589	12,478,589	12,478,589
Cash dividend per share	$ 0.205	$ 0.185	$ 0.205	$ 0.185
Cash dividend per common share, increase	$ 0.02
Cash dividends on common stock			$ 53,909	$ 48,018
Employee Share Purchase Plan 2020 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum percent of eligible compensation to purchase shares			1.00%			1.00%	1.00%	1.00%
Maximum percent of eligible compensation to purchase shares			10.00%			10.00%	10.00%	10.00%
Maximum number of share authorized to be issued under plan			1,000,000			1,000,000	1,000,000	1,000,000
Number of common shares purchased under plan							0
Maximum [Member] | Employee Share Purchase Plan 2020 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price percentage of closing price of common shares							95.00%
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value of award			$ 97.56
Units granted in period			447,301
Vested deferred RSUs outstanding			158,610	190,201		158,610	158,610	158,610
Restricted Stock Units (RSUs) [Member] | Progressive Waste Solutions Ltd. [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted in period								0
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value of award			$ 96.99
Units granted in period			116,784
Performance Shares [Member] | 2021 Performance Based Restricted Share Units Plan One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of award			3 years
Performance period end date			Dec. 31, 2023
Employee Stock Option [Member] | Progressive Waste Solutions Ltd. [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period								0
Deferred Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant-date fair value of award			$ 99.80
Units granted in period			2,856
Vested deferred RSUs outstanding			24,442			24,442	24,442	24,442	21,586
Progressive Waste Solutions Ltd. [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested deferred RSUs outstanding			65,236			65,236	65,236	65,236	66,554

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Shareholders' Equity (Summary of Activity Related to Restricted Stock Units) (Detail)	3 Months Ended
	Mar. 31, 2021 shares
Restricted Stock Units (RSUs) [Member]
Unvested shares
Outstanding, shares at beginning	772,625
Granted	447,301
Forfeited	(13,569)
Vested and issued	(340,529)
Outstanding at ending	158,610
Outstanding, shares at ending	865,828
Performance Shares [Member]
Unvested shares
Outstanding, shares at beginning	434,558
Granted	116,784
Forfeited	(5,048)
Vested and issued	(154,251)
Outstanding, shares at ending	392,043
Progressive Waste Solutions Ltd. [Member] | Restricted Stock Units (RSUs) [Member]
Unvested shares
Outstanding at beginning	66,554
Cash settled	(1,318)
Outstanding at ending	65,236

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Shareholders' Equity (Summary of Warrant and Deferred Share Unit Activity) (Detail) - Deferred Share Units [Member]	3 Months Ended
	Mar. 31, 2021 shares
Warrant
Outstanding at beginning	21,586
Granted	2,856
Outstanding at ending	24,442

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Shareholders' Equity (Summary of Vesting Activity Related to Restricted Share Units) (Details) - Restricted Stock Units (RSUs) [Member]	3 Months Ended
	Mar. 31, 2021 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vested over remaining service period	340,529
Forfeited	(13,569)
Progressive Waste Solutions Ltd. [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cash settled	(1,318)

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Shareholders' Equity (Summary of Stock Option Activity and Related Information) (Detail) - Progressive Waste Solutions Ltd. [Member]	3 Months Ended
	Mar. 31, 2021 shares
Number of Shares (Options)
Outstanding at beginning	51,200
Cash settled	(3,131)
Outstanding at ending	48,069

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Commitments and Contingencies (Narrative) (Detail) T in Millions			3 Months Ended	7 Months Ended	12 Months Ended
	Aug. 10, 2018 USD ($)	Mar. 06, 2018 USD ($)	Mar. 31, 2021 USD ($)	Jul. 25, 2017 USD ($)	Dec. 31, 2020 T	Dec. 31, 2014 USD ($)
Contingencies And Commitments [Line Items]
Threshold used for disclosing environmental matters involving potential monetary sanctions			$ 1,000,000
Minimum required threshold for disclosing environmental matters involving potential monetary sanctions			300,000
Estimated clean up costs						$ 342,000,000
Bridge and Thoroughfare Fee [Member]
Contingencies And Commitments [Line Items]
Loss contingency amount sought		$ 83,000		$ 11,600,000
Noncompliance fee		$ 750
Chiquita Canyon, LLC [Member]
Contingencies And Commitments [Line Items]
Annual tons of waste accepted at landfill | T					2
Estimate of total new fees and other new taxes over the life of the conditional use permit			$ 300,000,000
Environmental Remediation Expense [Member]
Contingencies And Commitments [Line Items]
Estimated period to implement clean-up			seven years
Required period of monitoring following the clean-up			10 years
Penalties [Member] | Bridge and Thoroughfare Fee [Member]
Contingencies And Commitments [Line Items]
Fee paid	$ 83,000
Fees [Member] | Bridge and Thoroughfare Fee [Member]
Contingencies And Commitments [Line Items]
Fee paid	$ 750

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Subsequent Events (Details) - $ / shares		8 Months Ended
	Apr. 28, 2021	Mar. 31, 2021
Subsequent Event [Line Items]
Share repurchase plan expiration date		Aug. 09, 2021
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends, declared date	Apr. 28, 2021
Dividends per share amount	$ 0.205
Dividends, date to be paid	May 26, 2021
Dividends, date of record	May 12, 2021