Stericycle (SRCL) 10-Q 2 Nov 21 2021 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2021	Oct. 29, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	1-37556
Entity Registrant Name	Stericycle, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-3640402
Entity Address, Address Line One	2355 Waukegan Road
Entity Address, City or Town	Bannockburn
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60015
City Area Code	847
Local Phone Number	367-5910
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	SRCL
Security Exchange Name	NASDAQ
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		91,863,023
Entity Central Index Key	0000861878
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF (LOSS) INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenues	$ 648.9	$ 636.4	$ 1,989.6	$ 2,019.6
Cost of revenues	409.2	369.1	1,219.4	1,236
Gross profit	239.7	267.3	770.2	783.6
Selling, general and administrative expenses	279.4	219	695.2	678.7
Divestiture losses (gains), net	10.9	104.1	10.9	166.2
(Loss) income from operations	(50.6)	(55.8)	64.1	(61.3)
Interest expense, net	(18.8)	(17.7)	(55.1)	(62)
Other income (expense), net	0.5	(0.9)	0.5	(4.8)
(Loss) income before income taxes	(68.9)	(74.4)	9.5	(128.1)
Income tax benefit (expense)	3	(6.5)	(19.9)	23.2
Net (loss) income	(65.9)	(80.9)	(10.4)	(104.9)
Net income attributable to noncontrolling interests	(0.1)	(0.3)	(0.2)	(0.9)
Net (loss) income attributable to Stericycle, Inc. common shareholders	$ (66)	$ (81.2)	$ (10.6)	$ (105.8)
(Loss) earnings per common share attributable to Stericycle, Inc. common shareholders:
Basic (in dollars per share)	$ (0.72)	$ (0.89)	$ (0.11)	$ (1.16)
Diluted (in dollars per share)	$ (0.72)	$ (0.89)	$ (0.11)	$ (1.16)
Weighted average number of common shares outstanding:
Basic (in shares)	91.9	91.5	91.8	91.4
Diluted (in shares)	91.9	91.5	91.8	91.4

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net (loss) income	$ (65.9)	$ (80.9)	$ (10.4)	$ (104.9)
Currency translation adjustments	(18.2)	30.3	(24.6)	1.5
Cumulative currency translation loss realized through disposition of operations	3.8	87.2	3.8	87.2
Total other comprehensive (loss) income	(14.4)	117.5	(20.8)	88.7
Comprehensive (loss) income	(80.3)	36.6	(31.2)	(16.2)
Less: comprehensive income (loss) attributable to noncontrolling interests	0.1	0.4	0.2	1.1
Comprehensive (loss) income attributable to Stericycle, Inc. common shareholders	(80.4)	36.2	(31.4)	(17.3)
JAPAN
Cumulative currency translation loss realized through disposition of operations	3.8	0	3.8	0
ARGENTINA
Cumulative currency translation loss realized through disposition of operations	$ 0	$ 87.2	$ 0	$ 87.2

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 37.5	$ 53.3
Accounts receivable, less allowance for doubtful accounts of $42.6 in 2021 and $56.2 in 2020	425.7	380.7
Prepaid expenses	58.5	63
Other current assets	48.5	55.5
Total Current Assets	570.2	552.5
Property, plant and equipment, less accumulated depreciation of $668.7 in 2021 and $629.7 in 2020	704	701.3
Operating lease right-of-use assets	355.3	365
Goodwill	2,799.3	2,819.3
Intangible assets, less accumulated amortization of $718.8 in 2021 and $641.6 in 2020	986.1	1,087.4
Other assets	54.6	56.4
Total Assets	5,469.5	5,581.9
Current Liabilities:
Current portion of long-term debt	18	91
Bank overdrafts	3.5	0
Accounts payable	211.2	181.2
Accrued liabilities	319.4	289.4
Operating lease liabilities	87.2	86.2
Other current liabilities	47.9	49.3
Total Current Liabilities	687.2	697.1
Long-term debt, net	1,621	1,689.1
Long-term operating lease liabilities	287.1	299
Deferred income taxes	389	380.4
Long-term taxes payable	18.6	22.7
Other liabilities	44.4	59.2
Total Liabilities	3,047.3	3,147.5
Commitments and contingencies
EQUITY
Common stock (par value $0.01 per share, 120.0 shares authorized, 91.8 and 91.6 issued and outstanding in 2021 and 2020, respectively)	0.9	0.9
Additional paid-in capital	1,253.6	1,234
Retained earnings	1,372	1,382.6
Accumulated other comprehensive loss	(208)	(187.4)
Total Stericycle, Inc.’s Equity	2,418.5	2,430.1
Noncontrolling interests	3.7	4.3
Total Equity	2,422.2	2,434.4
Total Liabilities and Equity	$ 5,469.5	$ 5,581.9

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 42.6	$ 56.2
Property, plant and equipment, accumulated depreciation	668.7	629.7
Intangible assets, accumulated amortization	$ 718.8	$ 641.6
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	120,000,000	120,000,000
Common stock, issued (in shares)	91,800,000	91,600,000
Common stock, outstanding (in shares)	91,800,000	91,600,000

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
OPERATING ACTIVITIES:
Net (loss) income	$ (10.4)	$ (104.9)
Adjustments to reconcile net (loss) income to net cash from operating activities:
Depreciation	77.9	83.3
Intangible amortization	89.1	94.5
Stock-based compensation expense	18.8	20.3
Deferred income taxes	11.5	(3.7)
Divestiture losses (gains), net	10.9	166.2
Asset impairments, loss on disposal of property plant and equipment and other charges	0	15.7
Other, net	3.9	(0.1)
Changes in operating assets and liabilities, net of the effects of divestitures:
Accounts receivable	(52.3)	32.9
Prepaid expenses	4.3	26.4
Accounts payable	26.8	(13)
Accrued liabilities	45.6	9.9
Other assets and liabilities	(23.9)	37.7
Net cash from operating activities	202.2	365.2
INVESTING ACTIVITIES:
Capital expenditures	(85.8)	(94.7)
Proceeds from divestiture of businesses, net	10.6	421.2
Other, net	2.2	1.7
Net cash from investing activities	(73)	328.2
FINANCING ACTIVITIES:
Repayments of long-term debt and other obligations	(14.8)	(23.5)
Proceeds from foreign bank debt	0	1.8
Repayments of foreign bank debt	(28.1)	(5.2)
Repayments of term loan	(222.5)	(404.5)
Proceeds from credit facility	1,158.6	943.1
Repayments of credit facility	(1,029.4)	(1,175.9)
Proceeds (repayments) from bank overdrafts, net	3.6	1.4
Payments of finance lease obligations	(3)	(3.2)
Payments of debt issuance costs	(3.9)	(1.4)
Proceeds from issuance of common stock, net of (payments of) taxes from withheld shares	(3.1)	(0.9)
Payments to noncontrolling interest	(0.6)	0
Net cash from financing activities	(143.2)	(668.3)
Effect of exchange rate changes on cash and cash equivalents	(1.8)	(0.4)
Net change in cash and cash equivalents	(15.8)	24.7
Cash and cash equivalents at beginning of period	53.3	34.7
Cash and cash equivalents at end of period	37.5	59.4
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid, net of capitalized interest	55	69.5
Income taxes paid (refunded), net	11.3	(42.9)
Capital expenditures in Accounts payable	$ 16.8	$ 8.5

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In Capital	Retained Earnings	Retained EarningsCumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning Balance at Dec. 31, 2019	$ 2,334.7	$ (2.5)	$ 0.9	$ 1,205.7	$ 1,442.4	$ (2.5)	$ (318.1)	$ 3.8
Beginning Balance (in shares) at Dec. 31, 2019			91.2
Net (loss) income	(104.9)				(105.8)			0.9
Currency translation adjustments	1.5						1.3	0.2
Cumulative currency translation loss realized through disposition of operations	87.2						87.2
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares	2.2			2.2
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares (in shares)			0.3
Stock-based compensation expense	20.3			20.3
Ending Balance at Sep. 30, 2020	2,338.5		$ 0.9	1,228.2	1,334.1		(229.6)	4.9
Ending Balance (in shares) at Sep. 30, 2020			91.5
Beginning Balance at Jun. 30, 2020	2,296.1		$ 0.9	1,222.4	1,415.3		(347)	4.5
Beginning Balance (in shares) at Jun. 30, 2020			91.5
Net (loss) income	(80.9)				(81.2)			0.3
Currency translation adjustments	30.3						30.2	0.1
Cumulative currency translation loss realized through disposition of operations	87.2						87.2
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares	(1.6)			(1.6)
Stock-based compensation expense	7.4			7.4
Ending Balance at Sep. 30, 2020	2,338.5		$ 0.9	1,228.2	1,334.1		(229.6)	4.9
Ending Balance (in shares) at Sep. 30, 2020			91.5
Beginning Balance at Dec. 31, 2020	2,434.4		$ 0.9	1,234	1,382.6		(187.4)	4.3
Beginning Balance (in shares) at Dec. 31, 2020			91.6
Net (loss) income	(10.4)				(10.6)			0.2
Currency translation adjustments	(24.6)						(24.4)	(0.2)
Cumulative currency translation loss realized through disposition of operations	3.8						3.8
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares	0.8			0.8
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares (in shares)			0.2
Stock-based compensation expense	18.8			18.8
Changes to noncontrolling interest	(0.6)							(0.6)
Ending Balance at Sep. 30, 2021	2,422.2		$ 0.9	1,253.6	1,372		(208)	3.7
Ending Balance (in shares) at Sep. 30, 2021			91.8
Beginning Balance at Jun. 30, 2021	2,493.5		$ 0.9	1,244.6	1,438		(193.7)	3.7
Beginning Balance (in shares) at Jun. 30, 2021			91.8
Net (loss) income	(65.9)				(66)			0.1
Currency translation adjustments	(18.2)						(18.1)	(0.1)
Cumulative currency translation loss realized through disposition of operations	3.8						3.8
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares	2.3			2.3
Stock-based compensation expense	6.7			6.7
Ending Balance at Sep. 30, 2021	$ 2,422.2		$ 0.9	$ 1,253.6	$ 1,372		$ (208)	$ 3.7
Ending Balance (in shares) at Sep. 30, 2021			91.8

BASIS OF PRESENTATION AND SUMMA

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	NOTE 1 – BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of Significant Accounting Policies Basis of Presentation: The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of Stericycle, Inc. and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The Company's Condensed Consolidated Financial Statements were prepared in accordance with U.S. GAAP and include the assets, liabilities, revenues, and expenses of all wholly owned subsidiaries and majority-owned subsidiaries over which the Company exercises control. Outside shareholders' interests in subsidiaries are shown on the Condensed Consolidated Financial Statements as “Noncontrolling interests". The accompanying unaudited Condensed Consolidated Financial Statements as of September 30, 2021 and for the three and nine months ended September 30, 2021 and 2020 have been prepared pursuant to the rules and regulations of the SEC for interim reporting and, therefore, do not include all information and footnote disclosures normally included in audited financial statements prepared in conformity with U.S. GAAP. In the opinion of management, however, all adjustments, consisting of normal recurring adjustments necessary to present fairly the results of operations, financial position and cash flows have been made. These Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and notes thereto included in the 2020 Form 10-K. The results of operations for any interim period are not necessarily indicative of the results of operations to be expected for the full year or any other period. Use of Estimates: The preparation of financial statements in conformity with generally accepted accounting principles requires the Company to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Some areas where the Company makes estimates include its allowance for doubtful accounts, credit memo reserve, accrued employee health and welfare benefits, contingent liabilities, asset retirement obligations, stock-based compensation expense, income tax liabilities, accrued auto and workers’ compensation self-insured claims, operating lease ROU assets and lease liabilities, intangible asset and long-lived asset valuations, assets held for sale, and goodwill impairment. Actual results may differ from those estimates. Adoption of New Accounting Standards Simplifying the Accounting for Income Taxes In December 2019, the FASB issued ASU 2019-12, “ Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” (“ ASU 2019-12 ”). ASU 2019-12 attempts to simplify aspects of accounting for franchise taxes and en acted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. ASU 2019-12 was effective for public business entities for fiscal years beginning after December 15, 2020, including interim periods within that fiscal year. The Company adopted ASU 2019-12 on January 1, 2021 and there was no material impact on the Company’s Condensed Consolidated Financial Statements.

REVENUES FROM CONTRACTS WITH CU

REVENUES FROM CONTRACTS WITH CUSTOMERS	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
REVENUES FROM CONTRACTS WITH CUSTOMERS	NOTE 2 – REVENUES FROM CONTRACTS WITH CUSTOMERS The Company provides RWCS, which provide collection and processing of regulated and specialized waste, including medical, pharmaceutical and hazardous waste, for disposal and compliance programs and communication solutions, and SID Services, which provide for the collection of personal and confidential information for secure destruction and recycling of shredded paper. The Company’s customers typically enter into a contract for the provision of services on a regular and scheduled basis, e.g., weekly, monthly or on an as needed basis over the contract term. Under the contract terms, the Company receives fees based on a monthly, quarterly or annual rate and/or fees based on contractual rates depending upon measures including the volume, weight, and type of waste, number and size of containers collected, weight and type of shredded paper, and number of call minutes. Amounts are invoiced based on the terms of the underlying contract either on a regular basis, e.g., monthly or quarterly, or as services are performed and are generally due within a short period of time after invoicing based upon normal terms and conditions for our business type and the geography of the services performed. Disaggregation of Revenues In the first quarter of 2021, we updated our service lines to include Communication Solutions (formally part of CRS) in RWCS. This reclassification was driven by the divestiture of the Company's global product recall business (Expert Solutions) in December of 2020 and the remaining Communication Solutions service line synergies with the Company's RWCS customers. For 2020 periods presented, amounts have been recast to reflect this change. In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenue by Service Regulated Waste and Compliance Services $ 461.7 $ 449.1 $ 1,398.3 $ 1,461.7 Secure Information Destruction Services 187.2 187.3 591.3 557.9 Total Revenues $ 648.9 $ 636.4 $ 1,989.6 $ 2,019.6 North America Regulated Waste and Compliance Services $ 365.4 $ 353.7 $ 1,094.4 $ 1,176.2 Secure Information Destruction Services 158.5 163.4 505.8 486.8 Total North America Segment $ 523.9 $ 517.1 $ 1,600.2 $ 1,663.0 International Regulated Waste and Compliance Services $ 96.3 $ 95.4 $ 303.9 $ 285.5 Secure Information Destruction Services 28.7 23.9 85.5 71.1 Total International Segment $ 125.0 $ 119.3 $ 389.4 $ 356.6 Contract Liabilities Contract liabilities at September 30, 2021 and December 31, 2020 were $8.7 million and $8.8 million, respectively. Contract liabilities as of September 30, 2021 are expected to be recognized in Revenues, as the amounts are earned, which will be over the next 12 months. Contract Acquisition Costs The Company’s incremental direct costs of obtaining a contract, which consist primarily of sales incentives, are deferred and amortized to SG&A over a weighted average estimated period of benefit of 6.5 years. During the three months ended September 30, 2021 and 2020, the Company amortized $3.2 million and $2.7 million, respectively, of deferred sales incentives to SG&A. During the nine months ended September 30, 2021 and 2020, the Company amortized $9.3 million and $7.8 million, respectively, of deferred sales incentives to SG&A. Total contract acquisition costs, net of accumulated amortization, were classified as follows: In millions September 30, 2021 December 31, 2020 Other current assets $ 11.9 $ 11.1 Other assets 32.7 31.1 Total contract acquisition costs $ 44.6 $ 42.2 Allowance for Doubtful Accounts The Company estimates its allowance for doubtful accounts based on past collection history and specific risks identified among uncollected amounts, as well as management’s expectation of future economic conditions. If current or expected future economic trends, 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 collection efforts have been exhausted. The changes in allowance for doubtful accounts were reported as follows: In millions Total Balance as of December 31, 2020 $ 56.2 Bad debt expense, net of recoveries 2.8 Write-offs (13.3) Other changes (1) (3.1) Balance as of September 30, 2021 $ 42.6 (1) Amount consists primarily of currency translation adjustments and divestitures.

RESTRUCTURING, DIVESTITURES, AN

RESTRUCTURING, DIVESTITURES, AND IMPAIRMENTS	9 Months Ended
	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
RESTRUCTURING, DIVESTITURES, AND IMPAIRMENTS	NOTE 3 – RESTRUCTURING, DIVESTITURES AND IMPAIRMENTS Restructuring There were no restructuring charges during the three and nine months ended September 30, 2021 and 2020, respectively. Divestitures On September 1, 2021, the Company completed the sale of its operations in Japan for proceeds of approximately $11.3 million. Revenues of operations in Japan were approximately 1% of our consolidated annual revenues for 2020. The transaction resulted in a third quarter divestiture pre-tax loss of $10.9 million, of which $3.8 million related to the reclassification of accumulated currency translation adjustments to earnings. Stericycle recognized the following Divestiture losses (gains), net in the Condensed Consolidated Statements of (Loss) Income: In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 North America Segment Domestic Environmental Solutions business $ — $ (8.3) $ — $ 53.8 Total North America charges, net — (8.3) — 53.8 International Segment Japan operations 10.9 — 10.9 — Argentina operations — 112.4 — 112.4 Total International charges, net 10.9 112.4 10.9 112.4 Divestiture losses (gains), net $ 10.9 $ 104.1 $ 10.9 $ 166.2 Impairments Impairments recognized for the period were reported as follows: In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Impairments Operational Optimization - SG&A $ — $ 2.8 $ — $ 2.8 Asset Impairment - COR — — — 6.8 Asset Impairment - SG&A — 0.6 — 6.1 Total Impairments $ — $ 3.4 $ — $ 15.7 North America Operational Optimization - SG&A $ — $ — $ — $ — Asset Impairment - COR — — — 6.1 Asset Impairment - SG&A — — — 4.0 Total North America Segment $ — $ — $ — $ 10.1 International Operational Optimization - SG&A $ — $ 2.8 $ — $ 2.8 Asset Impairment - COR — — — 0.7 Asset Impairment - SG&A — 0.6 — 2.1 Total International Segment $ — $ 3.4 $ — $ 5.6 Operational optimization impairments are associated with our actions to reduce operating costs and optimize operations. In the three and nine months ended September 30, 2020 our International reportable segment includes charges primarily related to the discontinuation of a service line in the U.K. Asset impairments for the three and nine months ended September 30, 2020, in North America includes charges associated with rationalization of software application assets and intangibles assets as a result of a discontinuation of a service line, and in International, includes charges associated with certain property, plant and equipment assets and operating permit intangible assets primarily in Brazil.

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	NOTE 4 – GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill Changes in the carrying amount of goodwill by reportable segment were as follows: In millions North America International Total Balance as of December 31, 2020 $ 2,448.8 $ 370.5 $ 2,819.3 Divestiture — (6.0) (6.0) Changes due to foreign currency fluctuations — (14.0) (14.0) Balance as of September 30, 2021 $ 2,448.8 $ 350.5 $ 2,799.3 Intangible Assets Intangible assets were as follows: In millions September 30, 2021 December 31, 2020 Gross Carrying Amount Accumulated Amortization Net Value Gross Carrying Amount Accumulated Amortization Net Value Amortizable intangibles: Customer relationships $ 1,293.8 $ 704.1 $ 589.7 $ 1,314.9 $ 630.2 $ 684.7 Covenants not-to-compete 3.5 3.2 0.3 3.5 3.0 0.5 Tradenames 3.6 1.3 2.3 3.6 1.3 2.3 Operating permits 13.4 9.6 3.8 11.5 6.5 5.0 Other 0.6 0.6 — 0.6 0.6 — Indefinite lived intangibles: Operating permits 75.6 — 75.6 79.6 — 79.6 Tradenames 314.4 — 314.4 315.3 — 315.3 Total $ 1,704.9 $ 718.8 $ 986.1 $ 1,729.0 $ 641.6 $ 1,087.4 Changes in the carrying amount of intangible assets were as follows: In millions Total Balance as of December 31, 2020 $ 1,087.4 Divestiture (5.9) Amortization during the period (89.1) Changes due to foreign currency fluctuations (6.3) Balance as of September 30, 2021 $ 986.1 The estimated amortization expense for each of the next five years (based upon exchange rates at September 30, 2021) is as follows for the years ending December 31: In millions 2021 (remainder) $ 39.2 2022 115.8 2023 111.9 2024 110.6 2025 90.2

LONG-TERM DEBT

LONG-TERM DEBT	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
LONG-TERM DEBT	NOTE 5 – LONG-TERM DEBT The Company’s long-term debt consisted of the following: In millions September 30, 2021 December 31, 2020 $1.2 billion Credit Facility, due in 2026 $ 301.9 $ 173.3 $200 million Term Loan, due in 2026 200.0 422.5 $600 million Senior Notes, due in 2024 600.0 600.0 $500 million Senior Notes, due in 2029 500.0 500.0 Promissory notes and deferred consideration weighted average maturity 1.7 years at 2021 and 2.1 years at 2020 27.4 42.3 Foreign bank debt weighted average maturity 2.9 years at 2021 and 1.1 years at 2020 2.2 32.3 Obligations under finance leases 22.3 24.8 Total debt 1,653.8 1,795.2 Less: current portion of total debt 18.0 91.0 Less: unamortized debt issuance costs 14.8 15.1 Long-term portion of total debt $ 1,621.0 $ 1,689.1 The estimated fair value of our debt approximated $1.67 billion and $1.86 billion as of September 30, 2021 and December 31, 2020, respectively. These fair value amounts were estimated using an income approach by applying market interest rates for comparable instruments and developed based on inputs classified as Level 2. The Company renewed its Credit Agreement, dated as of September 30, 2021, that amended and extended its previous credit agreement dated November 17, 2017. The Credit Agreement provides for a term loan facility under which the Company has outstanding term loans in an aggregate principal amount of $200.0 million and a revolving credit facility of $1.2 billion. The Term Loan and the Credit Facility will mature on September 30, 2026. If the Company's 2024 Senior Notes are still outstanding 91 days prior to their respective maturity date (the “Springing Maturity Date”), then the Credit Agreement maturity date will be the Springing Maturity Date. The proceeds of the Term Loan Facility and loans under the Revolving Credit Facility were used to refinance the loans and other credit extensions that were made under the previous credit agreement. In the three and nine months ended September 30, 2021 and in connection with the Credit Agreement, the Company incurred issuance costs of $4.1 million, of which $0.2 million has been charged to Interest expense, net. The remainder was capitalized as unamortized debt issuance costs and is being amortized to Interest expense, net over the remaining term of the Credit Agreement. A portion, $0.5 million, of unamortized debt issuance costs associated with the previous credit agreement has been charged to Interest expense, net. The obligations under the Credit Agreement are secured by substantially all of the assets of the Company and all of its material domestic subsidiaries and are guaranteed by certain subsidiaries of the Company, excluding certain excluded subsidiaries pursuant to the Credit Agreement. The Credit Agreement contains a financial covenant requiring maintenance of a minimum Consolidated Interest Coverage Ratio (as defined in the Credit Agreement) of 3.00 to 1.00 as of the end of any fiscal quarter. The Credit Agreement contains a financial covenant requiring maintenance of a maximum Consolidated Leverage Ratio of 4.25 to 1.00 in any fiscal quarter ending before September 30, 2022 and 4.00 to 1.00 for any fiscal quarter ending on or after September 30, 2022, with a leverage holiday if a permitted acquisition or series of related permitted acquisitions involving aggregate consideration in excess of $200.0 million (a “Material Acquisition”) occurs during a fiscal quarter. If a Material Acquisition occurs, the Company shall have the right to increase the maximum Consolidated Leverage Ratio covenant to 4.50 to 1.00 during such fiscal quarter and the subsequent three fiscal quarters. As of September 30, 2021, the Company was in compliance with its financial covenants. The Credit Agreement Defined Debt Leverage Ratio covenant was 3.40 to 1.00, which was below the allowed maximum ratio of 4.25 to 1.00 as set forth in the Credit Agreement. The Applicable Interest Rate for loans depends on the Consolidated Leverage Ratio (as defined in the Credit Agreement) for the Company. The tiered pricing is based on the leverage grid provided in the Credit Agreement. Based on the then current Consolidated Leverage Ratio, the initial pricing under the Credit Agreement was set at an Applicable Rate of 1.30% for Eurocurrency Rate/SONIA Daily Rate Loans and 0.30% for Base Rate Loans, and the facility fee is set at a rate of 0.20% times the actual daily amount of the Revolving Credit Facility regardless of usage. Amounts committed to outstanding letters of credit and the unused portion of the Company’s Credit Facility were as follows: In millions September 30, 2021 December 31, 2020 Outstanding letters of credit under Credit Facility $ 73.0 $ 79.5 Unused portion of the Credit Facility 825.2 947.2

INCOME TAXES

INCOME TAXES	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
INCOME TAXES	NOTE 6 – INCOME TAXES The Company reported an income tax benefit of $3.0 million compared to an income tax expense of $6.5 million for the three months ended September 30, 2021 and 2020, respectively. The effective tax rates for the three months ended September 30, 2021 and 2020 were 4.4% and (8.7)%, respectively. The effective tax rate for the three months ended September 30, 2021 reflects (i) a non-deductible legal matter and (ii) losses in jurisdictions that are not eligible for tax benefits on account of valuation allowances, partially offset by (iii) the net tax benefit from divestitures. The effective tax rate for the three months ended September 30, 2020 reflects the impact of non-deductible divestiture charges. The Company reported an income tax expense of $19.9 million for the nine months ended September 30, 2021 compared to an income tax benefit of $23.2 million for the nine months ended September 30, 2020. The effective tax rates for the nine months ended September 30, 2021 and 2020 were 209.5% and 18.1%, respectively. The effective tax rate for the nine months ended September 30, 2021 reflects (i) a non-deductible legal matter, (ii) losses in jurisdictions that are not eligible for tax benefits on account of valuation allowances, and (iii) equity-based compensation awards expiring without a tax benefit, partially offset by (iv) a $5.5 million tax benefit associated with a tax matter that was subject to a PFA with the IRS (see further description below) and (v) the net tax benefit from divestitures. The effective tax rate for the nine months ended September 30, 2020 reflects (i) a $39.4 million tax benefit related to the CARES Act (see further description below), (ii) the impact of non-deductible divestiture charges, and (iii) equity-based compensation awards expiring without a tax benefit. In response to the COVID-19 pandemic the government took the following tax-related government actions: • On March 11, 2021, the President signed into law the ARP Act, a legislative package which is generally not significant to the Company's current business; however, the Company will continue to assess the ARP Act on an ongoing basis. • On December 27, 2020, the President signed the CAA 2021, which provides several business tax relief provisions, which are generally not significant to the Company's current business; however, the Company will continue to assess the CAA 2021 on an ongoing basis. • On March 27, 2020, the P resident signed into law the CARES Act, which was a substantial tax-and-spending package. As a result of the CARES Act tax law changes, for the year ended December 31, 2020, we recognized a $44.4 million tax benefit related to our ability to carryback net operating losses to prior years that had higher tax rates. Note that in the first quarter of 2020, the Company recognized an initial $39.4 million tax benefit; in the fourth quarter of 2020, upon finalizing the 2019 federal income tax return which impacted the carryback to prior years, the Company recognized an incremental $5.0 million tax benefit. In July 2020, the Company received a cash refund of $48.0 million, and in December 2020, the Company received $64.2 million (of which $62.0 million was the cash refund claim, and $2.2 million was interest income). A remaining carryback claim of less than $1.0 million associated with the finalization of the 2019 U.S. federal income tax return was filed with the IRS and the refund was received in June of 2021. Similar tax provisions and other stimulus measures have been granted either before or after September 30, 2021 by certain foreign and U.S. state jurisdictions, which the Company continues to evaluate and apply, if applicable. The Company filed a PFA with the IRS related to a claim under Internal Revenue Code Section 1341 concerning the tax rate to be applied to the SQ Settlement on the Company’s 2018 tax return. As a result of the enactment of the CARES Act, the Company was able to realize a benefit at the higher tax rate in prior years on a portion of the SQ Settlement. In 2020, in consideration of the CARES Act, the Company revised the PFA, a portion of the long-term receivable previously established for the Section 1341 claim was reclassified to a current income tax receivable and the related uncertain tax position was released as part of the tax benefit recognized in 2020 (a balance sheet reclassification in part as described above). Subsequently in late 2020 the Company amended the 2018 tax return to reduce the Section 1341 benefit as a result of discussions with the IRS as part of the PFA program. Consequently, the remaining long-term receivable established for the Section 1341 claim and the corresponding uncertain tax position was reclassified to a current income tax receivable and current income tax liability, respectively, as both are expected to settle in cash in 2021. In April 2021, the Company was advised that the IRS completed its review of the 2018 tax return and took no exception to the Section 1341 benefit. Consequently, the Company recorded a tax benefit of approximately $5.5 million in the second quarter of 2021 associated with the Section 1341 claim.

(LOSS) EARNINGS PER COMMON SHAR

(LOSS) EARNINGS PER COMMON SHARE	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
(LOSS) EARNINGS PER COMMON SHARE	NOTE 7 – (LOSS) EARNINGS PER COMMON SHARE Basic (loss) earnings per share is computed by dividing Net (Loss) Income by the number of weighted average common shares outstanding during the reporting period. Diluted earnings per share is calculated to give effect to all potentially dilutive common shares that were outstanding during the reporting period, only in the periods in which such effect is dilutive. The following table shows the effect of stock-based awards on the weighted average number of shares outstanding used in calculating diluted earnings per share: In millions of shares Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Weighted average common shares outstanding - basic 91.9 91.5 91.8 91.4 Incremental shares outstanding related to stock-based awards (1) — — — — Weighted average common shares outstanding - diluted 91.9 91.5 91.8 91.4 (1) In periods of net loss, stock-based awards are anti-dilutive and therefore excluded from the earnings (loss) per share cal culation. Anti-dilutive stock-based awards excluded from the computation of diluted (loss) earnings per share using the treasury stock method includes the following: In thousands of shares Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Option awards 1,741 2,691 2,042 3,190 RSU awards 318 278 307 281 PSUs are offered to key employees and are subject to achievement of specified performance conditions . Contingently issuable shares are excluded from the computation of diluted earnings per share based on current period results. The shares would not be issuable if the end of the reporting period were the end of the contingency period. If such goals are not met, no compensation expense is recognized, and any previously recognized compensation expense is reversed.

SEGMENT REPORTING

SEGMENT REPORTING	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
SEGMENT REPORTING	NOTE 8 – SEGMENT REPORTING The Company evaluates, oversees, and manages the financial performance of two operating and reportable segments – North America and International. The following tables show financial information for the Company's reportable segments: In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues North America $ 523.9 $ 517.1 $ 1,600.2 $ 1,663.0 International 125.0 119.3 389.4 356.6 Total $ 648.9 $ 636.4 $ 1,989.6 $ 2,019.6 Adjusted Income from Operations North America $ 132.7 $ 157.0 $ 449.9 $ 447.0 International 15.1 15.4 43.3 32.3 Other Costs (75.3) (71.4) (205.0) (199.2) Total $ 72.5 $ 101.0 $ 288.2 $ 280.1 The following table reconciles the Company's primary measure of segment profitability, Adjusted Income from Operations, to (Loss) income from operations: In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Total Reportable Segment Adjusted Income from Operations $ 72.5 $ 101.0 $ 288.2 $ 280.1 Adjusting Items: ERP Implementation (14.6) (10.7) (49.8) (37.9) Intangible Amortization (29.2) (31.4) (89.1) (94.5) Operational Optimization — (3.1) — (3.1) Divestitures (including Divestiture (losses) gains, net) (12.2) (105.4) (13.8) (172.9) Litigation, Settlements and Regulatory Compliance (67.1) (3.5) (71.4) (12.1) Asset Impairments — (0.6) — (12.9) Other — (2.1) — (8.0) (Loss) income from operations $ (50.6) $ (55.8) $ 64.1 $ (61.3)

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	NOTE 9 - COMMITMENTS AND CONTINGENCIES Legal Proceedings The Company operates in highly regulated industries and responds to regulatory inquiries or investigations from time to time that may be initiated for a variety of reasons. At any given time, the Company has matters at various stages of resolution with the applicable government authorities. The Company is also routinely involved in actual or threatened legal actions, including those involving alleged personal injuries and commercial, employment, environmental, tax, and other issues. The outcomes of these matters are not within the Company’s complete control and may not be known for prolonged periods of time. In some actions, claimants seek damages, as well as other relief, including injunctive relief, that could require significant expenditures or result in lost revenue. In accordance with applicable accounting standards, the Company establishes an accrued liability for loss contingencies related to legal and regulatory matters when the loss is both probable and reasonably estimable. If the reasonable estimate of a probable loss is a range, and no amount within the range is a better estimate than any other, the minimum amount of the range is accrued. If a loss is not probable or a probable loss is not reasonably estimable, no liability is recorded. When determining the estimated loss or range of loss, significant judgment is required to estimate the amount and timing of a loss to be recorded. These accruals represent management’s best estimate of probable losses and, in such cases, there may be an exposure to loss in excess of the amounts accrued. Estimates of probable losses resulting from litigation and regulatory proceedings are difficult to predict. Legal and regulatory matters inherently involve significant uncertainties based on, among other factors, the jurisdiction and stage of the proceedings, developments in the applicable facts or law, and the unpredictability of the ultimate determination of the merits of any claim, any defenses the Company may assert against that claim, and the amount of any damages that may be awarded. The Company’s accrued liabilities for loss contingencies related to legal and regulatory matters may change in the future as a result of new developments, including, but not limited to, the occurrence of new legal matters, changes in the law or regulatory environment, adverse or favorable rulings, newly discovered facts relevant to the matter, or changes in the strategy for the matter. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors. Contract Class Action and Opt Out Lawsuits. Beginning on March 12, 2013, the Company was served with several class action complaints filed in federal and state courts in several jurisdictions. These complaints asserted, among other things, that the Company had imposed unauthorized or excessive price increases and other charges on its customers in breach of its contracts and in violation of the Illinois Consumer Fraud and Deceptive Business Practices Act. The complaints sought certification of the lawsuit as a class action and the award to class members of appropriate damages and injunctive relief. These related actions were ultimately transferred to the United States District Court for the Northern District of Illinois for centralized pretrial proceedings. The parties engaged in discussions through and overseen by a mediator regarding a potential resolution of the matter and reached a settlement agreement, as previously disclosed, which settlement agreement obtained court approval on March 8, 2018. Under the terms of the SQ Settlement, the Company admitted no fault or wrongdoing whatsoever, and it entered into the SQ Settlement to avoid the cost and uncertainty of litigation. Certain class members who have opted out of the SQ Settlement have filed lawsuits against the Company, and the Company is defending and intends to resolve those actions. The Company has made an accrual in respect of these collective matters consistent with its accrual policies described above, which is not material. Government Investigations. On June 12, 2017, the SEC issued a subpoena to the Company, requesting documents and information relating to the Company’s compliance with the FCPA or other foreign or domestic anti-corruption laws with respect to certain of the Company’s operations in Latin America. In addition, the DOJ notified the Company that it was investigating this matter in parallel with the SEC. The Company is cooperating with these agencies and certain foreign authorities. The Company also conducted an internal investigation of these and other matters, including outside of Latin America, under the oversight of the Audit Committee of the Board of Directors and with the assistance of outside counsel, and this investigation found evidence of improper conduct. As part of the FCPA investigation discussed above, the SEC requested certain additional information from the Company. As previously disclosed, the Company has engaged in settlement discussions in connection with the foregoing government investigations. The Company is continuing to discuss with the DOJ and the SEC possible resolution, including settlement, of these matters. The Company is also discussing potential settlement of investigations by Brazilian authorities. Based on these discussions to date and as provided by U.S. GAAP, the Company has recognized an estimated aggregate accrued liability for these matters of $61.0 million within its condensed consolidated financial statements as of September 30, 2021. However, the Company cannot predict the eventual scope, duration, or outcome of these government investigations at this time, including whether a settlement will be reached, the amount of any potential monetary payments, or injunctive or other relief, the results of which may be materially adverse to the Company, its financial condition, its results of operations, and its operations. At the present time, the Company is unable to reasonably estimate nor provide any assurance regarding the amount of any potential loss in excess of the amount accrued relating to these matters. On July 29, 2019, the SEC issued a subpoena to the Company requesting documents relating to the Company’s pricing practices concerning small quantity customers, as alleged in the Contract Class Action previously discussed. The Company cooperated with the SEC’s request, and the SEC has advised the Company that the SEC is no longer pursuing this matter. In addition, the Company has been informed that the office of the United States Attorney for the Southern District of New York is conducting an investigation into compliance with the False Claims Act and other federal statutes in connection with the collection, transportation and disposal of hazardous waste by the Company’s former ESOL business unit. The Company has also been informed that the State of California Department of Justice is conducting an investigation related to the Company’s collection, transportation, and disposal of waste generated by government customers in California. The Company is cooperating with these investigations. The Company has not accrued any amounts in respect of the investigation matters set forth in the preceding paragraph, as it cannot estimate any reasonably possible loss or any range of reasonably possible losses that the Company may incur. The Company is unable to make such an estimate because, based on what the Company knows now, in the Company’s judgment, the factual and legal issues presented in these matters are sufficiently unique that the Company is unable to identify other circumstances sufficiently comparable to provide guidance in making estimates. Environmental and Regulatory Matters. The Company is regulated by federal, state and local laws enacted to regulate the discharge of materials into the environment, the generation, transportation and disposal of waste, and the cleanup of contaminated soil and groundwater and protection of the environment. Because of the highly regulated nature of its business, the Company frequently becomes a party to legal or administrative proceedings involving various governmental authorities and other interested parties. The issues involved in these proceedings generally relate to alleged violations of existing permits and licenses or alleged responsibility under federal or state Superfund laws to remediate contamination at properties owned either by the Company or by other parties to which either the Company or the prior owners of certain of its facilities shipped waste. From time to time, the Company may be subject to fines or penalties in regulatory proceedings relating primarily to waste treatment, storage or disposal facilities. Effective April 6, 2020, the Company completed the divestiture of its Domestic Environmental Solutions business, including the facility in Rancho Cordova, California, to Harsco Corporation. Pursuant to the Purchase Agreement, the Company may have liability under certain indemnification claims for matters relating to those Environmental Solutions facilities, including potentially with respect to the investigations by the Southern District of New York and California Department of Justice described above and the Rancho Cordova, California, and DEA Investigation matters discussed below. North Salt Lake, Utah. On May 10, 2021, the United States District Court for the District of Utah approved a settlement between the Company and the United States DOJ that resolved an investigation by the EPA into alleged past Clean Air Act and permit violations, as previously disclosed. Under the resulting civil consent decree the Company paid a civil penalty, which is not material, and has begun working with the local Davis County School District on a Supplemental Environmental Project that will replace older, higher-emission school buses with new, more efficient buses to reduce pollution and protect the local environment. The Company has accrued the amount remaining to be spent under the Supplemental Environmental Project, which is not material. Rancho Cordova, California. On June 25 and 26, 2018, the California DTSC conducted a Compliance Enforcement Inspection of the Company’s former Environmental Solutions facility in Rancho Cordova, California. On February 14, 2020, DTSC filed an action in the Superior Court for the State of California, Sacramento County Division, alleging violations of California’s Hazardous Waste Control Law and the facility’s hazardous waste permit arising from the inspection. That action is ongoing. Separately, on August 15, 2019, the Company received from DTSC a written Intent to Deny Hazardous Waste Facility Permit application for the Rancho Cordova facility. A public hearing was held on September 22, 2019, and the public comment period closed on October 25, 2019. The Company entered a written submission as part of that process. On August 27, 2020, DTSC issued a Notice of Denial of Hazardous Waste Facility Permit Application and on September 25, 2020, the Company filed a Petition for Review, which instituted an administrative appeal of DTSC’s action, which is currently pending. The Company is vigorously defending itself in all of the Rancho Cordova, California matters. The Company has not accrued any amounts in respect of these matters and cannot estimate the reasonably possible loss or the range of reasonably possible losses that it may incur. The Company is unable to make such an estimate because (i) litigation is by its nature uncertain and unpredictable and (ii) in the Company’s judgment, the factual and legal allegations asserted by DTSC are sufficiently unique that it is unable to identify other proceedings with circumstances sufficiently comparable to provide guidance in making estimates. DEA Investigation. On February 11, 2020, the Company received an administrative subpoena from the DEA, which executed a search warrant at the Company’s former Environmental Solutions facility at Rancho Cordova, California and an administrative inspection warrant at the Company’s former facility in Indianapolis, Indiana for materials related to the former Environmental Solutions business of collecting, transporting, and destroying controlled substances from retail customers (the “ESOL Retail Controlled Substances Business”). On that same day, agents from the DTSC executed a separate search warrant at the Rancho Cordova facility. Since that time, the U.S. Attorney’s Office for the Eastern District of California (“USAO EDCA”) has been overseeing criminal and civil investigations of the ESOL Retail Controlled Substances Business. The USAO EDCA has informed the Company that it may have civil liability under the Controlled Substances Act related to the Domestic Environmental Solutions Retail Controlled Substances Business. The Company is cooperating with the civil and criminal investigations, which are ongoing. The Company has not accrued any amounts in respect of these investigations and cannot estimate the reasonably possible loss or any range of reasonably possible losses that the Company may incur. The Company is unable to make such an estimate because, based on what the Company knows now, in the Company’s judgment, the factual and legal issues presented in this matter are sufficiently unique that the Company is unable to identify other circumstances sufficiently comparable to provide guidance in making estimates. European Retrovirus Investigations. In conjunction with Europol, governmental authorities of Spain, Portugal, and Romania have conducted coordinated inspections of a large number of medical waste management facilities, including Stericycle facilities, relating to the transportation, management and disposal of waste that may be infected with the COVID-19 virus, and related matters. The inspections have resulted in proceedings in Spain and Portugal. The Company intends to vigorously defend itself in these proceedings.

BASIS OF PRESENTATION AND SUM_2

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation: The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of Stericycle, Inc. and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The Company's Condensed Consolidated Financial Statements were prepared in accordance with U.S. GAAP and include the assets, liabilities, revenues, and expenses of all wholly owned subsidiaries and majority-owned subsidiaries over which the Company exercises control. Outside shareholders' interests in subsidiaries are shown on the Condensed Consolidated Financial Statements as “Noncontrolling interests". The accompanying unaudited Condensed Consolidated Financial Statements as of September 30, 2021 and for the three and nine months ended September 30, 2021 and 2020 have been prepared pursuant to the rules and regulations of the SEC for interim reporting and, therefore, do not include all information and footnote disclosures normally included in audited financial statements prepared in conformity with U.S. GAAP. In the opinion of management, however, all adjustments, consisting of normal recurring adjustments necessary to present fairly the results of operations, financial position and cash flows have been made. These Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and notes thereto included in the 2020 Form 10-K. The results of operations for any interim period are not necessarily indicative of the results of operations to be expected for the full year or any other period.
Use of Estimates	Use of Estimates: The preparation of financial statements in conformity with generally accepted accounting principles requires the Company to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Some areas where the Company makes estimates include its allowance for doubtful accounts, credit memo reserve, accrued employee health and welfare benefits, contingent liabilities, asset retirement obligations, stock-based compensation expense, income tax liabilities, accrued auto and workers’ compensation self-insured claims, operating lease ROU assets and lease liabilities, intangible asset and long-lived asset valuations, assets held for sale, and goodwill impairment. Actual results may differ from those estimates.
Adoption of New Accounting Standards	Adoption of New Accounting Standards Simplifying the Accounting for Income Taxes In December 2019, the FASB issued ASU 2019-12, “ Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” (“ ASU 2019-12 ”). ASU 2019-12 attempts to simplify aspects of accounting for franchise taxes and en acted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. ASU 2019-12 was effective for public business entities for fiscal years beginning after December 15, 2020, including interim periods within that fiscal year. The Company adopted ASU 2019-12 on January 1, 2021 and there was no material impact on the Company’s Condensed Consolidated Financial Statements.

REVENUES FROM CONTRACTS WITH _2

REVENUES FROM CONTRACTS WITH CUSTOMERS (Tables)	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Schedule of Revenues Disaggregated by Service, Primary Geographical Regions and Timing of Revenue Recognition	In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenue by Service Regulated Waste and Compliance Services $ 461.7 $ 449.1 $ 1,398.3 $ 1,461.7 Secure Information Destruction Services 187.2 187.3 591.3 557.9 Total Revenues $ 648.9 $ 636.4 $ 1,989.6 $ 2,019.6 North America Regulated Waste and Compliance Services $ 365.4 $ 353.7 $ 1,094.4 $ 1,176.2 Secure Information Destruction Services 158.5 163.4 505.8 486.8 Total North America Segment $ 523.9 $ 517.1 $ 1,600.2 $ 1,663.0 International Regulated Waste and Compliance Services $ 96.3 $ 95.4 $ 303.9 $ 285.5 Secure Information Destruction Services 28.7 23.9 85.5 71.1 Total International Segment $ 125.0 $ 119.3 $ 389.4 $ 356.6
Schedule of Total Contract Acquisition Costs	Total contract acquisition costs, net of accumulated amortization, were classified as follows: In millions September 30, 2021 December 31, 2020 Other current assets $ 11.9 $ 11.1 Other assets 32.7 31.1 Total contract acquisition costs $ 44.6 $ 42.2
Schedule of Allowance for Credit Loss Activity	The changes in allowance for doubtful accounts were reported as follows: In millions Total Balance as of December 31, 2020 $ 56.2 Bad debt expense, net of recoveries 2.8 Write-offs (13.3) Other changes (1) (3.1) Balance as of September 30, 2021 $ 42.6 (1) Amount consists primarily of currency translation adjustments and divestitures.

RESTRUCTURING, DIVESTITURES, _2

RESTRUCTURING, DIVESTITURES, AND IMPAIRMENTS (Tables)	9 Months Ended
	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
Schedule of Divestiture Losses (Gains)	Stericycle recognized the following Divestiture losses (gains), net in the Condensed Consolidated Statements of (Loss) Income: In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 North America Segment Domestic Environmental Solutions business $ — $ (8.3) $ — $ 53.8 Total North America charges, net — (8.3) — 53.8 International Segment Japan operations 10.9 — 10.9 — Argentina operations — 112.4 — 112.4 Total International charges, net 10.9 112.4 10.9 112.4 Divestiture losses (gains), net $ 10.9 $ 104.1 $ 10.9 $ 166.2
Schedule of Impairments	Impairments recognized for the period were reported as follows: In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Impairments Operational Optimization - SG&A $ — $ 2.8 $ — $ 2.8 Asset Impairment - COR — — — 6.8 Asset Impairment - SG&A — 0.6 — 6.1 Total Impairments $ — $ 3.4 $ — $ 15.7 North America Operational Optimization - SG&A $ — $ — $ — $ — Asset Impairment - COR — — — 6.1 Asset Impairment - SG&A — — — 4.0 Total North America Segment $ — $ — $ — $ 10.1 International Operational Optimization - SG&A $ — $ 2.8 $ — $ 2.8 Asset Impairment - COR — — — 0.7 Asset Impairment - SG&A — 0.6 — 2.1 Total International Segment $ — $ 3.4 $ — $ 5.6

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	Changes in the carrying amount of goodwill by reportable segment were as follows: In millions North America International Total Balance as of December 31, 2020 $ 2,448.8 $ 370.5 $ 2,819.3 Divestiture — (6.0) (6.0) Changes due to foreign currency fluctuations — (14.0) (14.0) Balance as of September 30, 2021 $ 2,448.8 $ 350.5 $ 2,799.3
Intangible Assets	Intangible assets were as follows: In millions September 30, 2021 December 31, 2020 Gross Carrying Amount Accumulated Amortization Net Value Gross Carrying Amount Accumulated Amortization Net Value Amortizable intangibles: Customer relationships $ 1,293.8 $ 704.1 $ 589.7 $ 1,314.9 $ 630.2 $ 684.7 Covenants not-to-compete 3.5 3.2 0.3 3.5 3.0 0.5 Tradenames 3.6 1.3 2.3 3.6 1.3 2.3 Operating permits 13.4 9.6 3.8 11.5 6.5 5.0 Other 0.6 0.6 — 0.6 0.6 — Indefinite lived intangibles: Operating permits 75.6 — 75.6 79.6 — 79.6 Tradenames 314.4 — 314.4 315.3 — 315.3 Total $ 1,704.9 $ 718.8 $ 986.1 $ 1,729.0 $ 641.6 $ 1,087.4
Changes in Carrying Amount of Intangible Assets	Changes in the carrying amount of intangible assets were as follows: In millions Total Balance as of December 31, 2020 $ 1,087.4 Divestiture (5.9) Amortization during the period (89.1) Changes due to foreign currency fluctuations (6.3) Balance as of September 30, 2021 $ 986.1
Estimated Amortization Expense	The estimated amortization expense for each of the next five years (based upon exchange rates at September 30, 2021) is as follows for the years ending December 31: In millions 2021 (remainder) $ 39.2 2022 115.8 2023 111.9 2024 110.6 2025 90.2

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	The Company’s long-term debt consisted of the following: In millions September 30, 2021 December 31, 2020 $1.2 billion Credit Facility, due in 2026 $ 301.9 $ 173.3 $200 million Term Loan, due in 2026 200.0 422.5 $600 million Senior Notes, due in 2024 600.0 600.0 $500 million Senior Notes, due in 2029 500.0 500.0 Promissory notes and deferred consideration weighted average maturity 1.7 years at 2021 and 2.1 years at 2020 27.4 42.3 Foreign bank debt weighted average maturity 2.9 years at 2021 and 1.1 years at 2020 2.2 32.3 Obligations under finance leases 22.3 24.8 Total debt 1,653.8 1,795.2 Less: current portion of total debt 18.0 91.0 Less: unamortized debt issuance costs 14.8 15.1 Long-term portion of total debt $ 1,621.0 $ 1,689.1
Schedule of Outstanding Letters of Credit and the Unused Portion of Senior Credit Facility	Amounts committed to outstanding letters of credit and the unused portion of the Company’s Credit Facility were as follows: In millions September 30, 2021 December 31, 2020 Outstanding letters of credit under Credit Facility $ 73.0 $ 79.5 Unused portion of the Credit Facility 825.2 947.2

(LOSS) EARNINGS PER COMMON SH_2

(LOSS) EARNINGS PER COMMON SHARE (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings (Loss) Per Share	The following table shows the effect of stock-based awards on the weighted average number of shares outstanding used in calculating diluted earnings per share: In millions of shares Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Weighted average common shares outstanding - basic 91.9 91.5 91.8 91.4 Incremental shares outstanding related to stock-based awards (1) — — — — Weighted average common shares outstanding - diluted 91.9 91.5 91.8 91.4 (1) In periods of net loss, stock-based awards are anti-dilutive and therefore excluded from the earnings (loss) per share cal culation.
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	Anti-dilutive stock-based awards excluded from the computation of diluted (loss) earnings per share using the treasury stock method includes the following: In thousands of shares Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Option awards 1,741 2,691 2,042 3,190 RSU awards 318 278 307 281

SEGMENT REPORTING (Tables)

SEGMENT REPORTING (Tables)	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Financial Information Concerning Company's Reportable Segments	The following tables show financial information for the Company's reportable segments: In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenues North America $ 523.9 $ 517.1 $ 1,600.2 $ 1,663.0 International 125.0 119.3 389.4 356.6 Total $ 648.9 $ 636.4 $ 1,989.6 $ 2,019.6 Adjusted Income from Operations North America $ 132.7 $ 157.0 $ 449.9 $ 447.0 International 15.1 15.4 43.3 32.3 Other Costs (75.3) (71.4) (205.0) (199.2) Total $ 72.5 $ 101.0 $ 288.2 $ 280.1
Reconciliation of Company's Primary Measure of Segment Profitability Adjusted Income from Operations to Income (loss) from Operations	The following table reconciles the Company's primary measure of segment profitability, Adjusted Income from Operations, to (Loss) income from operations: In millions Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Total Reportable Segment Adjusted Income from Operations $ 72.5 $ 101.0 $ 288.2 $ 280.1 Adjusting Items: ERP Implementation (14.6) (10.7) (49.8) (37.9) Intangible Amortization (29.2) (31.4) (89.1) (94.5) Operational Optimization — (3.1) — (3.1) Divestitures (including Divestiture (losses) gains, net) (12.2) (105.4) (13.8) (172.9) Litigation, Settlements and Regulatory Compliance (67.1) (3.5) (71.4) (12.1) Asset Impairments — (0.6) — (12.9) Other — (2.1) — (8.0) (Loss) income from operations $ (50.6) $ (55.8) $ 64.1 $ (61.3)

REVENUES FROM CONTRACTS WITH _3

REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Revenues Disaggregated by Service, Primary Geographical Regions and Timing of Revenue Recognition (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 648.9	$ 636.4	$ 1,989.6	$ 2,019.6
Regulated Waste and Compliance Services
Disaggregation of Revenue [Line Items]
Revenues	461.7	449.1	1,398.3	1,461.7
Secure Information Destruction Services
Disaggregation of Revenue [Line Items]
Revenues	187.2	187.3	591.3	557.9
North America
Disaggregation of Revenue [Line Items]
Revenues	523.9	517.1	1,600.2	1,663
North America | Regulated Waste and Compliance Services
Disaggregation of Revenue [Line Items]
Revenues	365.4	353.7	1,094.4	1,176.2
North America | Secure Information Destruction Services
Disaggregation of Revenue [Line Items]
Revenues	158.5	163.4	505.8	486.8
International
Disaggregation of Revenue [Line Items]
Revenues	125	119.3	389.4	356.6
International | Regulated Waste and Compliance Services
Disaggregation of Revenue [Line Items]
Revenues	96.3	95.4	303.9	285.5
International | Secure Information Destruction Services
Disaggregation of Revenue [Line Items]
Revenues	$ 28.7	$ 23.9	$ 85.5	$ 71.1

REVENUES FROM CONTRACTS WITH _4

REVENUES FROM CONTRACTS WITH CUSTOMERS - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Contract liability	$ 8.7		$ 8.7		$ 8.8
Contract acquisition costs weighted average estimated period			6 years 6 months
Amortized deferred sales incentive cost	$ 3.2	$ 2.7	$ 9.3	$ 7.8

REVENUES FROM CONTRACTS WITH _5

REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Total Contract Acquisition Costs (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total contract acquisition costs	$ 44.6	$ 42.2
Other current assets
Disaggregation of Revenue [Line Items]
Total contract acquisition costs	11.9	11.1
Other assets
Disaggregation of Revenue [Line Items]
Total contract acquisition costs	$ 32.7	$ 31.1

REVENUES FROM CONTRACTS WITH _6

REVENUES FROM CONTRACTS WITH CUSTOMERS - Allowance for Credit Loss (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021USD ($)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 56.2
Bad debt expense, net of recoveries	2.8
Write-offs	(13.3)
Other charges	(3.1)
Ending balance	$ 42.6

RESTRUCTURING, DIVESTITURES, _3

RESTRUCTURING, DIVESTITURES, AND IMPAIRMENTS - Narrative (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Dec. 31, 2020	Aug. 04, 2021USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 0	$ 0	$ 0
Loss on sale of business	10,900,000	104,100,000	10,900,000	166,200,000
Reclassification of accumulated currency translation adjustments to earnings	(3,800,000)	$ (87,200,000)	$ (3,800,000)	$ (87,200,000)
Disposed of by sale | Japan operations
Restructuring Cost and Reserve [Line Items]
Sale price for transaction						$ 11,300,000
Percentage of revenue in last fiscal period					0.01
Loss on sale of business	10,900,000
Reclassification of accumulated currency translation adjustments to earnings	$ (3,800,000)

RESTRUCTURING, DIVESTITURES, _4

RESTRUCTURING, DIVESTITURES, AND IMPAIRMENTS - Divestiture Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Loss on sale of business	$ 10.9	$ 104.1	$ 10.9	$ 166.2
North America
Restructuring Cost and Reserve [Line Items]
Loss on sale of business	0	(8.3)	0	53.8
North America | Domestic Environmental Solutions business
Restructuring Cost and Reserve [Line Items]
Loss on sale of business	0	(8.3)	0	53.8
International
Restructuring Cost and Reserve [Line Items]
Loss on sale of business	10.9	112.4	10.9	112.4
International | Japan operations
Restructuring Cost and Reserve [Line Items]
Loss on sale of business	10.9	0	10.9	0
International | Argentina operations
Restructuring Cost and Reserve [Line Items]
Loss on sale of business	$ 0	$ 112.4	$ 0	$ 112.4

RESTRUCTURING, DIVESTITURES, _5

RESTRUCTURING, DIVESTITURES, AND IMPAIRMENTS - Schedule of Impairments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	$ 0	$ 3.4	$ 0	$ 15.7
Selling, general and administrative expenses (SG&A)
Restructuring Cost and Reserve [Line Items]
Operational optimization	0	2.8	0	2.8
Asset impairment charges	0	0.6	0	6.1
Cost of revenue (COR)
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	0	0	0	6.8
North America
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	0	0	0	10.1
North America | Selling, general and administrative expenses (SG&A)
Restructuring Cost and Reserve [Line Items]
Operational optimization	0	0	0	0
Asset impairment charges	0	0	0	4
North America | Cost of revenue (COR)
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	0	0	0	6.1
International
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	0	3.4	0	5.6
International | Selling, general and administrative expenses (SG&A)
Restructuring Cost and Reserve [Line Items]
Operational optimization	0	2.8	0	2.8
Asset impairment charges	0	0.6	0	2.1
International | Cost of revenue (COR)
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	$ 0	$ 0	$ 0	$ 0.7

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2021USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 2,819.3
Divestiture	(6)
Changes due to foreign currency fluctuations	(14)
Ending Balance	2,799.3
North America
Goodwill [Roll Forward]
Beginning Balance	2,448.8
Divestiture	0
Changes due to foreign currency fluctuations	0
Ending Balance	2,448.8
International
Goodwill [Roll Forward]
Beginning Balance	370.5
Divestiture	(6)
Changes due to foreign currency fluctuations	(14)
Ending Balance	$ 350.5

GOODWILL AND OTHER INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Intangible Assets By Major Class [Line Items]
Accumulated Amortization	$ 718.8	$ 641.6
Gross Carrying Amount	1,704.9	1,729
Net Value	986.1	1,087.4
Operating permits
Intangible Assets By Major Class [Line Items]
Carrying amount, indefinite lived intangible assets	75.6	79.6
Tradenames
Intangible Assets By Major Class [Line Items]
Carrying amount, indefinite lived intangible assets	314.4	315.3
Customer relationships
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	1,293.8	1,314.9
Accumulated Amortization	704.1	630.2
Net Value	589.7	684.7
Covenants not-to-compete
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	3.5	3.5
Accumulated Amortization	3.2	3
Net Value	0.3	0.5
Tradenames
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	3.6	3.6
Accumulated Amortization	1.3	1.3
Net Value	2.3	2.3
Operating permits
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	13.4	11.5
Accumulated Amortization	9.6	6.5
Net Value	3.8	5
Other
Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	0.6	0.6
Accumulated Amortization	0.6	0.6
Net Value	$ 0	$ 0

GOODWILL AND OTHER INTANGIBLE_5

GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Carrying Amount of Intangible Assets (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Finite-lived and Indefinite-lived Intangible Assets [Roll Forward]
Beginning balance			$ 1,087.4
Divestiture			(5.9)
Amortization during the period	$ (29.2)	$ (31.4)	(89.1)	$ (94.5)
Changes due to foreign currency fluctuations			(6.3)
Ending balance	$ 986.1		$ 986.1

GOODWILL AND OTHER INTANGIBLE_6

GOODWILL AND OTHER INTANGIBLE ASSETS - Estimated Amortization Expense (Detail) $ in Millions	Sep. 30, 2021USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2021 (remainder)	$ 39.2
2022	115.8
2023	111.9
2024	110.6
2025	$ 90.2

LONG-TERM DEBT - Schedule of Lo

LONG-TERM DEBT - Schedule of Long-Term Debt (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Obligations under finance leases	$ 22.3	$ 24.8
Total debt	1,653.8	1,795.2
Less: current portion of total debt	18	91
Less: unamortized debt issuance costs	14.8	15.1
Long-term portion of total debt	1,621	1,689.1
Line of credit | $1.2 billion Credit Facility, due in 2026 | Credit Agreement Amended Sept 2021
Debt Instrument [Line Items]
Long-term debt	301.9	173.3
Line of credit | $200 million Term Loan, due in 2026 | Credit Agreement Amended Sept 2021
Debt Instrument [Line Items]
Long-term debt	200	422.5
Senior Notes | $500 million Senior Notes, due in 2029
Debt Instrument [Line Items]
Long-term debt	500	500
Senior Notes | $600 million Senior Notes, due in 2024
Debt Instrument [Line Items]
Long-term debt	600	600
Promissory notes and deferred consideration | Promissory notes and deferred consideration (fixed rate)
Debt Instrument [Line Items]
Long-term debt	27.4	42.3
Foreign bank debt | Foreign bank debt (variable rate)
Debt Instrument [Line Items]
Long-term debt	$ 2.2	$ 32.3

LONG-TERM DEBT - Schedule of _2

LONG-TERM DEBT - Schedule of Long-Term Debt (Parenthetical) (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Line of credit | $1.2 billion Credit Facility, due in 2026 | Credit Agreement Amended Sept 2021
Debt Instrument [Line Items]
Maximum borrowing capacity of line of credit facility	$ 1,200,000,000
Line of credit | $200 million Term Loan, due in 2026 | Credit Agreement Amended Sept 2021
Debt Instrument [Line Items]
Maximum borrowing capacity of line of credit facility	200,000,000
Senior Notes | $500 million Senior Notes, due in 2029
Debt Instrument [Line Items]
Debt instrument, face amount	500,000,000
Senior Notes | $600 million Senior Notes, due in 2024
Debt Instrument [Line Items]
Maximum borrowing capacity of line of credit facility	$ 600,000,000
Promissory notes and deferred consideration | Promissory notes and deferred consideration
Debt Instrument [Line Items]
Long-term debt, maturity	1 year 8 months 12 days	2 years 1 month 6 days
Foreign bank debt | Foreign bank debt
Debt Instrument [Line Items]
Long-term debt, maturity	2 years 10 months 24 days	1 year 1 month 6 days

LONG-TERM DEBT - Narrative (Det

LONG-TERM DEBT - Narrative (Detail)	9 Months Ended
	Sep. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Credit Agreement Amended Sept 2021 | Line of credit
Debt Instrument [Line Items]
Issuance cost	$ 4,100,000
Amortization of debt issuance costs	$ 200,000
Interest coverage ratio	3
Leverage ratio	3.40
Facility fee	0.20%
Credit Agreement Amended Sept 2021 | Line of credit | Quarters ending before Sept 30, 2022
Debt Instrument [Line Items]
Maximum consolidated leverage ratio	425.00%
Credit Agreement Amended Sept 2021 | Line of credit | Quarters ending after Sept 30, 2022
Debt Instrument [Line Items]
Maximum consolidated leverage ratio	400.00%
Material acquisition threshold	$ 200,000,000
Credit Agreement Amended Sept 2021 | Line of credit | Quarters with Material Acquisition
Debt Instrument [Line Items]
Maximum consolidated leverage ratio	450.00%
Credit Agreement Amended Sept 2021 | Base Rate | Line of credit
Debt Instrument [Line Items]
Applicable rate based on variable rate	0.30%
Credit Agreement Amended Sept 2021 | Eurodollar | Line of credit
Debt Instrument [Line Items]
Applicable rate based on variable rate	1.30%
Credit Agreement Amended Sept 2021 | $200 million Term Loan, due in 2026 | Line of credit
Debt Instrument [Line Items]
Maximum borrowing capacity of line of credit facility	$ 200,000,000
Credit Agreement Amended Sept 2021 | $1.2 billion Credit Facility, due in 2026 | Line of credit
Debt Instrument [Line Items]
Maximum borrowing capacity of line of credit facility	1,200,000,000
Existing credit agreement | Line of credit
Debt Instrument [Line Items]
Amortization of debt issuance costs	500,000
Level 2
Debt Instrument [Line Items]
Estimated fair value of debt	$ 1,670,000,000	$ 1,860,000,000

LONG-TERM DEBT - Schedule of Ou

LONG-TERM DEBT - Schedule of Outstanding Letters of Credit and the Unused Portion of Senior Credit Facility (Detail) - Senior credit facility - Line of credit - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Outstanding letters of credit under Credit Facility	$ 73	$ 79.5
Unused portion of the Credit Facility	$ 825.2	$ 947.2

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended		3 Months Ended					9 Months Ended		12 Months Ended
	Dec. 31, 2020	Jul. 31, 2020	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Income Tax Contingency [Line Items]
Income tax (benefit) expense			$ (3)			$ 6.5		$ 19.9	$ (23.2)
Effective tax rate			4.40%			(8.70%)		209.50%	18.10%
Income tax benefit, CARES Act					$ (5)		$ (39.4)
Tax benefit from net operating losses carry back related to CARES Act										$ 44.4
Proceeds from income tax refunds, CARES Act	$ 62	$ 48
Income taxes receivable, net operating loss, CARES Act	64.2
Interest on income tax expense, CARES Act	$ 2.2
Tax adjustment provision (benefit)				$ (5.5)
Internal Revenue Service | Tax Year 2019
Income Tax Contingency [Line Items]
Income tax refund, CARES Act			$ (1)					$ (1)

(LOSS) EARNINGS PER COMMON SH_3

(LOSS) EARNINGS PER COMMON SHARE - Computation of Basic and Diluted Earnings (Loss) Per Share (Detail) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Weighted average common shares outstanding - basic (in shares)	91.9	91.5	91.8	91.4
Incremental shares outstanding related to stock-based awards (in shares)	0	0	0	0
Weighted average common shares outstanding - diluted (in shares)	91.9	91.5	91.8	91.4

(LOSS) EARNINGS PER COMMON SH_4

(LOSS) EARNINGS PER COMMON SHARE - Schedule of Antidilutive Securities Excluded from EPS Calculation (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Option awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computation of diluted earnings (loss) per share (in shares)	1,741	2,691	2,042	3,190
RSU awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computation of diluted earnings (loss) per share (in shares)	318	278	307	281

SEGMENT REPORTING - Narrative (

SEGMENT REPORTING - Narrative (Detail)	9 Months Ended
	Sep. 30, 2021segment
Segment Reporting [Abstract]
Number of operating segments (in segments)	2
Number of reportable segments (in segments)	2

SEGMENT REPORTING - Financial I

SEGMENT REPORTING - Financial Information Concerning Company's Reportable Segments (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 648.9	$ 636.4	$ 1,989.6	$ 2,019.6
Adjusted Income from Operations	72.5	101	288.2	280.1
North America
Segment Reporting Information [Line Items]
Revenues	523.9	517.1	1,600.2	1,663
Adjusted Income from Operations	132.7	157	449.9	447
International
Segment Reporting Information [Line Items]
Revenues	125	119.3	389.4	356.6
Adjusted Income from Operations	15.1	15.4	43.3	32.3
Other Costs
Segment Reporting Information [Line Items]
Adjusted Income from Operations	$ (75.3)	$ (71.4)	$ (205)	$ (199.2)

SEGMENT REPORTING - Reconciliat

SEGMENT REPORTING - Reconciliation of Company's Primary Measure of Segment Profitability Adjusted Income from Operations to Income (loss) from Operations (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting [Abstract]
Total Reportable Segment Adjusted Income from Operations	$ 72.5	$ 101	$ 288.2	$ 280.1
ERP Implementation	(14.6)	(10.7)	(49.8)	(37.9)
Intangible Amortization	(29.2)	(31.4)	(89.1)	(94.5)
Operational Optimization	0	(3.1)	0	(3.1)
Divestitures (including Divestiture (losses) gains, net)	(12.2)	(105.4)	(13.8)	(172.9)
Litigation, Settlements and Regulatory Compliance	(67.1)	(3.5)	(71.4)	(12.1)
Asset Impairments	0	(0.6)	0	(12.9)
Other	0	(2.1)	0	(8)
(Loss) income from operations	$ (50.6)	$ (55.8)	$ 64.1	$ (61.3)

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Millions	Sep. 30, 2021USD ($)
Commitments and Contingencies Disclosure [Abstract]
Estimated legal settlement liability	$ 61

Uncategorized Items - scl-20210

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2016-13 [Member]