Entity Central Index Key Lessee operating lease liability payments due year five and thereafter. Finance lease liability payments due year five and thereafter. Adjusted earnings before interest taxes depreciation and amortization (EBITDA). Depreciation charges excluding business transformation costs. Business combination acquisition and integration related costs. Amount of expenses associated with operational optimization. Expenses (Income) related to divestitures. Litigation settlement and regulatory compliance. Document and entity information. Document Document And Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Current Reporting Status Entity Current Reporting Status Entity Shell Company Entity Shell Company Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address Address Line1 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Income Statement [Abstract] Revenues Revenue From Contract With Customer Excluding Assessed Tax Cost of revenues Cost Of Goods And Services Sold Gross profit Gross Profit Selling, general and administrative expenses Selling General And Administrative Expense Goodwill impairment Goodwill Impairment Loss Income from operations Operating Income Loss Interest expense, net Interest Revenue Expense Net Loss on early extinguishment of debt Gains Losses On Extinguishment Of Debt Other expense, net Other Nonoperating Income Expense (Loss) Income before income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income tax benefit (expense) Income Tax Expense Benefit Net (loss) income Profit Loss Net (income) loss attributable to noncontrolling interests Net Income Loss Attributable To Noncontrolling Interest Net (loss) income attributable to Stericycle, Inc. Net Income Loss Mandatory convertible preferred stock dividend Preferred Stock Dividends Income Statement Impact Gain on repurchases of preferred stock Preferred Stock Redemption Discount Net (loss) income attributable to Stericycle, Inc. common shareholders Net Income Loss Available To Common Stockholders Basic (Loss) earnings per common share attributable to Stericycle, Inc. common shareholders: Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted Weighted average number of common shares outstanding: Weighted Average Number Of Shares Outstanding [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Net (loss) income Other comprehensive income (loss): Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Foreign currency translation adjustments Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Amortization of cash flow hedge into income, net of tax ($0.1 and $0.1 and $0.2 and $0.2) for the three and six months ended June 30, 2019 and 2018, respectively) Other Comprehensive Income Loss Reclassification Adjustment From A O C I On Derivatives Net Of Tax Change in fair value of cash flow hedge, net of tax expense ($0.1 and $0.0 and $0.1 and $0.0) for the three and six months ended June 30, 2019 and 2018, respectively Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax Reclassification of cash flow hedge, net of tax ($1.1 for both the three and six months ended June 30, 2019) Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax Total other comprehensive income (loss) Other Comprehensive Income Loss Net Of Tax Comprehensive loss Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest Less: comprehensive income (loss) attributable to noncontrolling interests Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest Comprehensive loss attributable to Stericycle, Inc. common shareholders Comprehensive Income Net Of Tax Amortization of cash flow hedge into income, tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I On Derivatives Tax Change in fair value of cash flow hedge, tax expense Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax Reclassification of cash flow hedge, tax Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current Assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts receivable, less allowance for doubtful accounts of $75.1 in 2019 and $71.9 in 2018 Accounts Receivable Net Current Prepaid expenses Prepaid Expense Current Other current assets Other Assets Current Total Current Assets Assets Current Property, plant and equipment, less accumulated depreciation of $737.8 in 2019 and $678.1 in 2018 Property Plant And Equipment Net Operating lease right-of-use assets Operating Lease Right Of Use Asset Goodwill Goodwill Intangible assets, less accumulated amortization of $572.7 in 2019 and $499.9 in 2018 Intangible Assets Net Excluding Goodwill Other assets Other Assets Noncurrent Total Assets Assets LIABILITIES AND EQUITY Liabilities And Stockholders Equity [Abstract] Current Liabilities: Liabilities Current [Abstract] Current portion of long-term debt Long Term Debt And Capital Lease Obligations Current Bank overdrafts Bank Overdrafts Accounts payable Accounts Payable Current Accrued liabilities Accrued Liabilities Current Operating lease liabilities Operating Lease Liability Current Other current liabilities Other Liabilities Current Total Current Liabilities Liabilities Current Long-term debt, net Long Term Debt And Capital Lease Obligations Long-term operating lease liabilities Operating Lease Liability Noncurrent Deferred income taxes Deferred Tax Liabilities Noncurrent Long-term taxes payable Accrued Income Taxes Noncurrent Other liabilities Other Liabilities Noncurrent Total Liabilities Liabilities Commitments and contingencies Commitments And Contingencies Equity: Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract] Preferred stock (par value $0.01 per share, 1.0 shares authorized), 0.0 issued and outstanding in 2019 and 2018, respectively Preferred Stock Value Common stock (par value $0.01 per share, 120.0 shares authorized, 91.1 and 90.7 issued and outstanding in 2019 and 2018, respectively) Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Retained earnings Retained Earnings Accumulated Deficit Accumulated other comprehensive loss Accumulated Other Comprehensive Income Loss Net Of Tax Total Stericycle, Inc.’s Equity Stockholders Equity Noncontrolling interests Minority Interest Total Equity Stockholders Equity Including Portion Attributable To Noncontrolling Interest Total Liabilities and Equity Liabilities And Stockholders Equity Accounts receivable, allowance for doubtful accounts Allowance For Doubtful Accounts Receivable Current Property, plant and equipment, accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Intangible assets, accumulated amortization Finite Lived Intangible Assets Accumulated Amortization Preferred stock, par value (in dollars per share) Preferred Stock Par Or Stated Value Per Share Preferred stock, authorized (in shares) Preferred Stock Shares Authorized Preferred stock, issued (in shares) Preferred Stock Shares Issued Preferred stock, outstanding (in shares) Preferred Stock Shares Outstanding Common stock, par value (in dollars per share) Common Stock Par Or Stated Value Per Share Common stock, authorized (in shares) Common Stock Shares Authorized Common stock, issued (in shares) Common Stock Shares Issued Common stock, outstanding (in shares) Common Stock Shares Outstanding Gains losses on extinguishment of debt and related charges. Repayments of long-term bank debt, deferred acquisition consideration, and contingent acquisition consideration. Obligations related to acquisitions. Statement Of Cash Flows [Abstract] OPERATING ACTIVITIES: Net Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net (loss) income to net cash from operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Depreciation Depreciation Intangible amortization Amortization Of Intangible Assets Loss on early extinguishment of debt and related charges Gains Losses On Extinguishment Of Debt And Related Charges Stock-based compensation expense Share Based Compensation Deferred income taxes Deferred Income Taxes And Tax Credits Goodwill and other impairment charges and gains on divestiture of businesses, net Gain Loss On Sales Of Assets And Asset Impairment Charges Other, net Other Noncash Income Expense Changes in operating assets and liabilities, net of the effects of acquisitions and divestitures: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Prepaid expenses Increase Decrease In Prepaid Expense Accounts payable Increase Decrease In Accounts Payable Accrued liabilities Increase Decrease In Accrued Liabilities Other assets and liabilities Increase Decrease In Other Operating Capital Net Net cash from operating activities Net Cash Provided By Used In Operating Activities INVESTING ACTIVITIES: Net Cash Provided By Used In Investing Activities [Abstract] Capital expenditures Payments To Acquire Property Plant And Equipment Payments for acquisitions, net of cash acquired Payments To Acquire Businesses Net Of Cash Acquired Proceeds from divestiture of businesses Proceeds From Divestiture Of Businesses Other, net Payments For Proceeds From Other Investing Activities Net cash from investing activities Net Cash Provided By Used In Investing Activities FINANCING ACTIVITIES: Net Cash Provided By Used In Financing Activities [Abstract] Repayments of long-term debt and other obligations Repayments Of Long Term Debt And Other Obligations Proceeds from foreign bank debt Proceeds From Issuance Of Long Term Debt Repayment of foreign bank debt Repayments Of Long Term Debt Proceeds from Term Loan Proceeds From Lines Of Credit Repayment of Term Loan Repayments Of Lines Of Credit Proceeds from issuance of Senior Notes Proceeds From Issuance Of Senior Long Term Debt Proceeds from Senior Credit Facility Proceeds From Long Term Lines Of Credit Repayment of Senior Credit Facility Repayments Of Long Term Lines Of Credit Repayments of private placement notes Repayments Of Unsecured Debt Payments on early extinguishment of debt Payments Of Debt Extinguishment Costs (Repayments of) proceeds from bank overdrafts, net Proceeds From Repayments Of Bank Overdrafts Payments of capital lease obligations Repayments Of Long Term Capital Lease Obligations Payment of debt issuance costs Payments Of Debt Issuance Costs Proceeds from issuance of common stock, net of shares withheld for tax Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options Payments for repurchase of mandatory convertible preferred stock Payments For Repurchase Of Redeemable Convertible Preferred Stock Dividends paid on mandatory convertible preferred stock Payments Of Dividends Preferred Stock And Preference Stock Net cash from financing activities Net Cash Provided By Used In Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect Of Exchange Rate On Cash And Cash Equivalents Net change in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash and cash equivalents at beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Cash and cash equivalents at end of period SUPPLEMENTAL CASH FLOW INFORMATION: Supplemental Cash Flow Information [Abstract] Net issuances of obligations for acquisitions Obligations Related To Acquisitions Capital expenditures in accounts payable Capital Expenditures Incurred But Not Yet Paid Interest paid during the period, net of capitalized interest Interest Paid Net Income taxes paid during the period, net of refunds Income Taxes Paid Net Repurchase and cancellation of convertible preferred stock. Repurchase and cancellation of convertible preferred stock value. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Preferred Stock Preferred Stock [Member] Common Stock Common Stock [Member] Additional Paid-In Capital Additional Paid In Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income [Member] Noncontrolling Interests Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Beginning Balance Beginning Balance (in shares) Shares Outstanding Cumulative effect of new accounting standard, net of tax Cumulative Effect On Retained Earnings Net Of Tax1 Currency translation adjustment Change in qualifying cash flow hedge, net of tax Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Accelerated amortization of cash flow hedge, net of tax Issuance of common stock for exercise of options, RSU vesting, and employee stock purchases, net Stock Issued During Period Value Share Based Compensation Issuance of common stock for exercise of options, RSU vesting, and employee stock purchases, net (in shares) Stock Issued During Period Shares Share Based Compensation Repurchase and cancellation of convertible preferred stock Repurchase And Cancellation Of Convertible Preferred Stock Value Repurchase and cancellation of convertible preferred stock (in shares) Repurchase And Cancellation Of Convertible Preferred Stock Preferred stock dividend Dividends Preferred Stock Stock compensation expense Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Payments to noncontrolling interest Minority Interest Decrease From Distributions To Noncontrolling Interest Holders Ending Balance Ending Balance (in shares) Accounting Policies [Abstract] BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis Of Presentation And Significant Accounting Policies [Text Block] Revenue From Contract With Customer [Abstract] REVENUES FROM CONTRACTS WITH CUSTOMERS Revenue From Contract With Customer [Text Block] Restructuring And Related Activities [Abstract] RESTRUCTURING AND DIVESTITURES Restructuring Impairment And Other Activities Disclosure [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill And Intangible Assets Disclosure [Text Block] Leases [Abstract] LEASES Leases Of Lessee Disclosure [Text Block] Debt Disclosure [Abstract] DEBT Long Term Debt [Text Block] Income Tax Disclosure [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] Fair Value Disclosures [Abstract] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] STOCK BASED COMPENSATION Disclosure Of Compensation Related Costs Share Based Payments [Text Block] (LOSS) EARNINGS PER COMMON SHARE Earnings Per Share [Text Block] Segment Reporting [Abstract] SEGMENT REPORTING Segment Reporting Disclosure [Text Block] Environmental Remediation Obligations [Abstract] ENVIRONMENTAL REMEDIATION LIABILITIES Environmental Loss Contingency Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] LEGAL PROCEEDINGS Legal Matters And Contingencies [Text Block] Basis of Presentation Consolidation Policy [Text Block] Use of Estimates Use Of Estimates Leases Lessee Leases Policy [Text Block] New Accounting Standards New Accounting Pronouncements Policy Policy [Text Block] Schedule of Revenues Disaggregated by Service, Primary Geographical Regions and Timing of Revenue Recognition Disaggregation Of Revenue Table [Text Block] Schedule of Total Contract Acquisition Costs Capitalized Contract Cost Table [Text Block] Changes in Carrying Amount of Goodwill Schedule Of Goodwill [Text Block] Schedule of goodwill impaired by segment. Summary of Accumulated Non-Cash Impairment Charges by Segment Schedule Of Goodwill Impaired By Segment Table [Text Block] Schedule of carrying values of finite and indefinite lived intangible assets. Intangible Assets Schedule Of Carrying Values Of Finite And Indefinite Lived Intangible Assets Table [Text Block] Schedule of changes in finite lived and indefinite lived intangible assets. Changes in Carrying Amount of Intangible Assets Schedule Of Changes In Finite Lived And Indefinite Lived Intangible Assets Table [Text Block] Estimated Amortization Expense Scheduleof Finite Lived Intangible Assets Future Amortization Expense Table [Text Block] Components of Net Lease Cost Lease Cost Table [Text Block] Schedule of supplemental cash flow disclosures related to leases table text block. Schedule of Supplemental Cash Flow Information Related To Leases Schedule Of Supplemental Cash Flow Disclosures Related To Leases Table [Text Block] Schedule of information regarding lease terms and discount rates. Schedule Of Information Regarding Lease Terms and Discount Rates Schedule Of Information Regarding Lease Terms And Discount Rates Table [Text Block] Schedule of maturities of lease liabilities for operating leases and financing leases. Schedule of Maturities of Lease Liabilities Schedule Of Maturities Of Lease Liabilities For Operating Leases And Financing Leases Table [Text Block] Schedule of Debt Schedule Of Debt Instruments [Text Block] Schedule of Outstanding Letters of Credit, Unused Portion of Senior Credit Facility And Other Letters of Credit Outstanding Schedule Of Line Of Credit Facilities [Text Block] Schedule of contingent consideration liabilities recorded using level 3 inputs, amount recorded as current liabilities. Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Liability Class Fair Value By Liability Class [Axis] Fair Value by Liability Class Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation By Liability Class [Domain] Contingent consideration liability. Contingent Consideration Liability Contingent Consideration Liability [Member] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Schedule of Contingent Consideration Liabilities Recorded Using Level 3 Inputs Schedule Of Contingent Consideration Liabilities Recorded Using Level3 Inputs Amount Recorded As Current Liabilities Table [Text Block] Changes to Contingent Consideration Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] Estimated Fair Value of Company's Debt Obligations, Using Level 2 Inputs, Compared to Carrying Value Schedule Of Carrying Values And Estimated Fair Values Of Debt Instruments Table [Text Block] Stock-Based Compensation Expense Resulting from Stock Option Awards, RSUs, PSUs, and ESPP Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Stock Option Activity Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Assumptions Used in Black-Scholes Option Pricing Model Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary of RSU Activity Schedule Of Share Based Compensation Restricted Stock Units Award Activity Table [Text Block] Summary of PSU Activity Schedule Of Nonvested Performance Based Units Activity Table [Text Block] Computation of Basic and Diluted (Loss) Earnings Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Financial Information Concerning Company's Reportable Segments Schedule Of Segment Reporting Information By Segment [Text Block] Reconciliation of Company's Primary Measure of Segment Profitability (EBITDA) to (Loss) Income from Operations Reconciliation Of Operating Profit Loss From Segments To Consolidated [Text Block] Schedule of Total Environmental Liabilities Environmental Exit Costs By Cost [Text Block] Disaggregation Of Revenue [Abstract] Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Medical waste and compliance solutions. Medical Waste and Compliance Solutions Medical Waste And Compliance Solutions [Member] Hazardous waste solutions. Hazardous Waste Solutions Hazardous Waste Solutions [Member] Manufacturing and industrial services. Manufacturing and Industrial Services Manufacturing And Industrial Services [Member] Secure information destruction services. Secure Information Destruction Services Secure Information Destruction Services [Member] Communication services. Communication Services Communication Services [Member] Expert solutions. Expert Solutions Expert Solutions [Member] Segments Statement Business Segments [Axis] Segments Segment [Domain] Domestic and Canada regulated waste and compliance services. Domestic And Canada Regulated Waste And Compliance Services Domestic And Canada Regulated Waste And Compliance Services [Member] International regulated waste and compliance services. International RWCS International Regulated Waste And Compliance Services [Member] All Other All Other Segments [Member] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] United States UNITED STATES Canada CANADA Europe Europe [Member] Other geographical area. Others Other Geographical Area [Member] International Regulated Waste And Compliance Services All Other Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Contract liability Contract With Customer Liability Current Contract acquisition costs weighted average useful life. Contract acquisition costs weighted average estimated period Contract Acquisition Costs Weighted Average Useful Life Amortized deferred sales incentive cost Capitalized Contract Cost Amortization Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Other Current Assets Other Current Assets [Member] Other Noncurrent Assets Other Noncurrent Assets [Member] Total contract acquisition costs Capitalized Contract Cost Net Restructuring charges approximate paid over period. Schedule Of Restructuring And Related Costs [Table] Schedule Of Restructuring And Related Costs [Table] Domestic And Canada Regulated Waste And Compliance Services Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Selling, General and Administrative Expenses Selling General And Administrative Expenses [Member] Disposal Group Classification Disposal Group Classification [Axis] Disposal Group Classification Disposal Group Classification [Domain] Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group Disposed Of By Sale Not Discontinued Operations [Member] United Kingdom UNITED KINGDOM Receivable Type Accounts Notes Loans And Financing Receivable By Receivable Type [Axis] Receivable Receivable Type [Domain] Note Receivable Due in Nine Months Notes Receivable [Member] Assets and Liabilities Held for Sale, Not Discontinued Operations Disposal Group Heldforsale Not Discontinued Operations [Member] Restructuring Cost And Reserve [Line Items] Restructuring Cost And Reserve [Line Items] Restructuring charges Restructuring Charges Restructuring charges approximate paid over period Restructuring Charges Approximate Paid Over Period Restructuring charges future payments outstanding Restructuring And Related Cost Expected Cost Remaining1 Proceeds from sale of business Pre-tax gain from sale Gain Loss On Sale Of Business Non-cash impairment charges Impairment Of Long Lived Assets To Be Disposed Of Escrow deposit related to sale of business. Consideration for sale of business Disposal Group Including Discontinued Operation Consideration Consideration from business sale held in escrow Escrow Deposit Related To Sale Of Business Schedule Of Goodwill [Table] Schedule Of Goodwill [Table] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill Roll Forward Beginning Balance Goodwill acquired during period Goodwill Acquired During Period Valuation adjustments from prior year acquisitions Goodwill Purchase Accounting Adjustments Impairment during the period Divestiture of business Goodwill Written Off Related To Sale Of Business Unit Changes due to foreign currency fluctuations Goodwill Foreign Currency Translation Gain Loss Ending Balance Intangible assets by major class. Schedule of intangible assets by major class. Schedule Of Intangible Assets By Major Class [Table] Schedule Of Intangible Assets By Major Class [Table] Reporting Unit Reporting Unit [Axis] Reporting Unit Reporting Unit [Domain] Latin America reporting unit. Latin America [Member] Latin America Reporting Unit [Member] Intangible Assets By Major Class [Line Items] Intangible Assets By Major Class [Line Items] Goodwill impairment Goodwill, net of accumulated impairments Total accumulated non-cash goodwill impairment charges by reportable segment Goodwill Impaired Accumulated Impairment Loss Finite-Lived Intangible Assets by Major Class Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name Finite Lived Intangible Assets Major Class Name [Domain] Customer relationships Customer Relationships [Member] Covenants not-to-compete Noncompete Agreements [Member] Tradenames Trade Names [Member] Other Other Intangible Assets [Member] Indefinite-lived Intangible Assets Indefinite Lived Intangible Assets By Major Class [Axis] Indefinite-lived Intangible Assets, Major Class Name Indefinite Lived Intangible Assets Major Class Name [Domain] Operating permits. Operating permits Operating Permits [Member] Gross Carrying Amount Intangible Assets Gross Excluding Goodwill Gross Carrying Amount Finite Lived Intangible Assets Gross Carrying Amount, Indefinite Lived Intangible Assets Indefinite Lived Intangible Assets Excluding Goodwill Accumulated Amortization Net Value Finite Lived Intangible Assets Net Net Value Finite-lived and Indefinite-lived intangible assets acquired. Intangible assets excluding goodwill valuation adjustments for prior year acquisitions. Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance, with a finite life or projected indefinite period of benefit, for foreign currency translation adjustments. Finite-lived and indefinite-lived intangible assets. Finite-lived and Indefinite-lived Intangible Assets [Roll Forward] Finite Lived And Indefinite Lived Intangible Assets Roll Forward Beginning of period Intangible assets acquired during the period Finite Lived And Indefinite Lived Intangible Assets Acquired Valuation adjustments for prior year acquisitions Intangible Assets Excluding Goodwill Valuation Adjustments For Prior Year Acquisitions Divestiture of business Indefinite Lived Intangible Assets Written Off Related To Sale Of Business Unit Impairments during the period Impairment Of Intangible Assets Excluding Goodwill Amortization during the period Changes due to foreign currency fluctuations Intangible Assets Translation Adjustments End of period 2019 Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year 2020 Finite Lived Intangible Assets Amortization Expense Year Two 2021 Finite Lived Intangible Assets Amortization Expense Year Three 2022 Finite Lived Intangible Assets Amortization Expense Year Four 2023 Finite Lived Intangible Assets Amortization Expense Year Five Operating lease cost Operating Lease Cost Finance lease cost Finance Lease Cost [Abstract] Amortization of leased assets Finance Lease Right Of Use Asset Amortization Interest on lease liabilities Finance Lease Interest Expense Net lease cost Lease Cost Cash paid for amounts included in measurement of lease liabilities. Right-of-use assets obtained in exchange for lease obligations. Cash paid for amounts included in the measurement of lease liabilities: Cash Paid For Amounts Included In Measurement Of Lease Liabilities [Abstract] Operating cash flows from operating leases Operating Lease Payments Operating cash flows from finance leases Finance Lease Interest Payment On Liability Financing cash flows from finance leases Finance Lease Principal Payments Right-of-use assets obtained in exchange for lease obligations: Right Of Use Assets Obtained In Exchange For Lease Obligations [Abstract] Operating leases Right Of Use Asset Obtained In Exchange For Operating Lease Liability Finance leases Right Of Use Asset Obtained In Exchange For Finance Lease Liability Leases. Leases. Leases [Table] Leases [Table] Range Range [Axis] Range Range [Member] Minimum Minimum [Member] Maximum Maximum [Member] Leases [Line Items] Leases [Line Items] Finance lease assets, net of accumulated amortization Finance Lease Right Of Use Asset Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List Weighted average remaining lease term. Weighted average discount rate. Weighted average remaining lease term (years): Weighted Average Remaining Lease Term [Abstract] Operating leases Operating Lease Weighted Average Remaining Lease Term1 Finance leases Finance Lease Weighted Average Remaining Lease Term1 Weighted average discount rate: Weighted Average Discount Rate [Abstract] Operating leases Operating Lease Weighted Average Discount Rate Percent Finance leases Finance Lease Weighted Average Discount Rate Percent Operating leases Operating Lease Liabilities Payments Due [Abstract] 2019 Lessee Operating Lease Liability Payments Remainder Of Fiscal Year 2020 Lessee Operating Lease Liability Payments Due Year Two 2021 Lessee Operating Lease Liability Payments Due Year Three 2022 Lessee Operating Lease Liability Payments Due Year Four 2023 and thereafter Lessee Operating Lease Liability Payments Due Year Five And Thereafter Total lease payments Lessee Operating Lease Liability Payments Due Less: Interest Lessee Operating Lease Liability Undiscounted Excess Amount Present value of lease liabilities Operating Lease Liability Finance leases Finance Lease Liabilities Payments Due [Abstract] 2019 Finance Lease Liability Payments Remainder Of Fiscal Year 2020 Finance Lease Liability Payments Due Year Two 2021 Finance Lease Liability Payments Due Year Three 2022 Finance Lease Liability Payments Due Year Four 2023 and thereafter Finance Lease Liability Payments Due Year Five And Thereafter Total lease payments Finance Lease Liability Payments Due Less: Interest Finance Lease Liability Undiscounted Excess Amount Present value of lease liabilities Finance Lease Liability Lessee, operating lease, lease not yet commenced, liability incurred. Operating lease, not yet commenced, liability Lessee Operating Lease Lease Not Yet Commenced Liability Incurred Operating leases, not yet commenced, lease term Lessee Operating Lease Lease Not Yet Commenced Term Of Contract1 Debt Instrument [Table] Debt Instrument [Table] Long-term Debt, Type Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] Line of credit Line Of Credit [Member] Term loan. Term Loan Term Loan [Member] Senior Notes Senior Notes [Member] Private placement notes. Private placement notes Private Placement Notes [Member] Promissory notes and deferred consideration. Promissory notes and deferred consideration Promissory Notes And Deferred Consideration [Member] Foreign long term debt. Foreign bank debt Foreign Long Term Debt [Member] Obligations under capital leases Capital Lease Obligations [Member] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Senior credit facility due June twenty twenty two. $1.2 billion Senior Credit Facility, due in 2022 Senior Credit Facility Due June Twenty Twenty Two [Member] Term loan facility due 2022. $1.3 billion Term Loan, due in 2022 Term Loan Facility Due Twenty Twenty Two [Member] Senior notes facility due twenty twenty four. $600 million Senior Notes, due 2024 Senior Notes Facility Due Twenty Twenty Four [Member] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument Name [Domain] Notes due in twenty nineteen. $125 million private placement notes, due in 2019 Notes Due In Twenty Nineteen [Member] Notes due in twenty twenty. $225 million private placement notes, due in 2020 Notes Due In Twenty Twenty [Member] Notes due in twenty twenty one. $150 million private placement notes, due in 2021 Notes Due In Twenty Twenty One [Member] Notes due in twenty twenty two. $125 million private placement notes, due in 2022 Notes Due In Twenty Twenty Two [Member] Notes due one in twenty twenty two. $200 million private placement notes, due in 2022 Notes Due One In Twenty Twenty Two [Member] Notes due in twenty twenty three. $100 million private placement notes, due in 2023 Notes Due In Twenty Twenty Three [Member] Notes due one in twenty twenty three. $150 million private placement notes, due in 2023 Notes Due One In Twenty Twenty Three [Member] Notes weighted average maturity two point six and two point seven years. Notes weighted average maturity 2.6 and 2.7 years Notes Weighted Average Maturity Two Point Six And Two Point Seven Years [Member] Debt weighted average maturity one point six and one point nine years. Debt weighted average maturity 1.6 years and 1.9 years Debt Weighted Average Maturity One Point Six And One Point Nine Years [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Total debt Long Term Debt And Capital Lease Obligations Including Current Maturities Less: current portion of total debt Less: unamortized debt issuance costs Unamortized Debt Issuance Expense Long-term portion of total debt Maximum borrowing capacity of line of credit facility Line Of Credit Facility Maximum Borrowing Capacity Long-term debt, face amount Debt Instrument Face Amount Long-term debt, maturity Debt Instrument Term Senior Notes, due July 2024 Sale of Stock Subsidiary Sale Of Stock [Axis] Sale of Stock Sale Of Stock Name Of Transaction [Domain] Equity offering. Equity Offering Equity Offering [Member] Term loan facility. Term Loan Facility Term Loan Facility [Member] Fourth amendment. Fourth Amendment Fourth Amendment [Member] Leverage ratio period one. Quarter Ending on or Before March 31, 2020 Leverage Ratio Period One [Member] Leverage ratio period two. Quarter Ending from April 1, 2020 through September 30, 2020 Leverage Ratio Period Two [Member] Leverage ratio period three. Quarter Ending December 31, 2020 Leverage Ratio Period Three [Member] Leverage ratio period four. Quarter Ending Thereafter Leverage Ratio Period Four [Member] Private Placement Notes Financial Instrument Financial Instrument [Axis] Financial Instruments Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] Accrued Liabilities Accrued Liabilities [Member] Aggregate principal amount Debt instrument, interest rate Debt Instrument Interest Rate Stated Percentage Debt Instrument, frequency of periodic payment Debt Instrument Frequency Of Periodic Payment Debt instrument, redemption price, percentage of principal amount redeemed Debt Instrument Redemption Price Percentage Of Principal Amount Redeemed Debt instrument, redemption price, percentage Debt Instrument Redemption Price Percentage Debt instrument, redemption, description Debt Instrument Redemption Description Debt instrument repurchase percentage of principle and interest amount. Repurchase price percentage of principle and interest amount Debt Instrument Repurchase Percentage Of Principle And Interest Amount Debt instrument additional borrowing capacity. Consolidated leverage ratio. Allowed additions for business transformation operational optimization litigation matters and other cash charges for debt covenant compliance calculation. Debt instrument additional borrowing capacity Debt Instrument Additional Borrowing Capacity Allowed additional cash back to EBITDA Allowed Additions For Business Transformation Operational Optimization Litigation Matters And Other Cash Charges For Debt Covenant Compliance Calculation Maximum consolidated leverage ratio Consolidated Leverage Ratio Repayments of private placement notes Issuance cost Deferred Finance Costs Gross Interest expense Interest Costs Incurred Loss on early extinguishment of debt Premiums payable Gains Losses On Extinguishment Of Debt Before Write Off Of Deferred Debt Issuance Cost Write-off of unamortized debt issuance costs Write Off Of Deferred Debt Issuance Cost Interest expense Interest Expense Debt Excluding Amortization Other letters of credit outstanding. Senior credit facility Outstanding letters of credit under Senior Credit Facility Letters Of Credit Outstanding Amount Unused portion of the Senior Credit Facility Line Of Credit Facility Remaining Borrowing Capacity Other letters of credit outstanding Other Letters Of Credit Outstanding Income tax expense (benefit) Effective tax rate Effective Income Tax Rate Continuing Operations Fair Value By Balance Sheet Grouping [Table] Fair Value By Balance Sheet Grouping [Table] Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Level 2 Inputs [Member] Fair Value Inputs Level2 [Member] Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Derivative asset Derivative Assets Level 3 Inputs [Member] Fair Value Inputs Level3 [Member] Other current liabilities Business Combination Contingent Consideration Liability Current Other liabilities Business Combination Contingent Consideration Liability Noncurrent Total contingent consideration Business Combination Contingent Consideration Liability Maximum contingent liability if financial performance measures were fully met Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High Fair value measurement with unobservable inputs reconciliation recurring basis changes in liability due to foreign currency fluctuations. Business combination, contingent consideration, liability roll forward. Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Business Combination, Contingent Consideration, Liability [Roll Forward] Business Combination Contingent Consideration Liability Roll Forward Contingent consideration, Beginning Balance Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value Changes due to foreign currency fluctuations Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Changes In Liability Due To Foreign Currency Fluctuations Contingent consideration, Ending Balance Fair value of debt obligations Long Term Debt Fair Value Carrying value of debt obligations Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] Employee stock purchase plan. ESPP Employee Stock Purchase Plan [Member] Award Type Award Type [Axis] Equity Award Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Stock Options Employee Stock Option [Member] Restricted Stock Units (RSUs) Restricted Stock Units R S U [Member] Performance-Based Restricted Stock Units Performance Shares [Member] SG&A Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Stock-based compensation expense Number of Options Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll Forward Outstanding at beginning of year Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Exercised Stock Issued During Period Shares Stock Options Exercised Forfeited Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Canceled or expired Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Outstanding as of June 30, 2019 Exercisable as of June 30, 2019 Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Weighted Average Exercise Price per Share Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Rollforward Outstanding at beginning of year Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Forfeited Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Canceled or expired Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price Outstanding as of June 30, 2019 Exercisable as of June 30, 2019 Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Share-based compensation arrangement by share-based payment award, options, weighted average remaining contractual term. Weighted Average Remaining Contractual Life Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Outstanding as of June 30, 2019 Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Exercisable as of June 30, 2019 Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 Share-based compensation arrangement by share-based payment award, options, aggregate intrinsic value. Total Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract] Outstanding as of June 30, 2019 Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Exercisable as of June 30, 2019 Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Unrecognized compensation expenses related to stock options Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options Weighted average period of recognition for unrecognized compensation expenses Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Award vesting period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Intrinsic value of options exercised Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value Stock options granted (shares) Weighted average fair value at grant date Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Expected term (in years) Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Expected volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Expected dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Risk free interest rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Number of Units Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Roll Forward Non-vested at January 1, 2019 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Vested and released Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Forfeited Stock Issued During Period Shares Restricted Stock Award Forfeited Non-vested as of June 30, 2019 Weighted Average Grant Date Fair Value Per Share Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Roll Forward Non-vested at January 1, 2019 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Vested and released Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value Non-vested as of June 30, 2019 Share-based compensation arrangement by share-based payment award, equity instruments other than options, outstanding, weighted average remaining contractual terms. Weighted Average Remaining Contractual Life Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms [Abstract] Non-vested as of June 30, 2019 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms Share based compensation arrangement by share based payment award equity instruments other than options outstanding intrinsic value. Total Aggregate Intrinsic Value Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value [Abstract] Non-vested as of June 30, 2019 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Intrinsic Value Unrecognized compensation expenses related to RSUs Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Fair value of units vested (in shares) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value Share-based compensation arrangement by share-based payment award, equity instruments other than options, expected to vest. Additional shares expected to vest Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Numerator: Net Income Loss Available To Common Stockholders Basic [Abstract] Net (loss) income attributable to Stericycle, Inc. Denominator: Denominator for basic (loss) earnings per share - weighted average shares (in shares) Effect of dilutive securities: Dilutive Securities [Abstract] Stock-based compensation awards Incremental Common Shares Attributable To Share Based Payment Arrangements Mandatory convertible preferred stock (in shares) Incremental Common Shares Attributable To Conversion Of Preferred Stock Denominator for diluted (loss) earnings per share - adjusted weighted average shares and after assumed exercises (Loss) earnings per share - Basic (in dollars per share) (Loss) earnings per share - Diluted (in dollars per share) Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Series A mandatory convertible preferred stock member. Series A Mandatory Convertible Preferred Stock Series A Mandatory Convertible Preferred Stock [Member] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive shares excluded from computation of diluted earnings per share (in shares) Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Stock Options Restricted Stock Units (RSUs) Shares excluded from computation of diluted earnings per share Schedule Of Segment Reporting Information By Segment [Table] Schedule Of Segment Reporting Information By Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Adjusted EBITDA Adjusted Earnings Before Interest Taxes Depreciation And Amortization Total Reportable Segment Adjusted EBITDA Depreciation Depreciation Charges Excluding Business Transformation Costs Business Transformation Business Exit Costs1 Intangible Amortization Acquisition and Integration Business Combination Acquisition And Integration Related Costs Operational Optimization Operational Optimization Charges Divestitures Expense Income Related To Divestitures Litigation, Settlements and Regulatory Compliance Litigation Settlement And Regulatory Compliance Impairment Goodwill And Intangible Asset Impairment Other Other Expenses Depreciation charges for business transformation Restructuring Reserve Accelerated Depreciation Loss Contingencies [Table] Loss Contingencies [Table] Other Liabilities Other Liabilities [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Total environmental liabilities Accrual For Environmental Loss Contingencies Environmental remediation liabilities projection term. Environmental remediation liabilities, projection term Environmental Remediation Liabilities Projection Term Litigation Status Litigation Status [Axis] Litigation Status Litigation Status [Domain] Definitive settlement agreement. Definitive settlement agreement Definitive Settlement Agreement [Member] Proposed Securities Class Action Settlement. Proposed Securities Class Action Settlement Proposed Securities Class Action Settlement [Member] Litigation Case Litigation Case [Axis] Litigation Case Litigation Case Type [Domain] Siu settlement. Siu Settlement Siu Settlement [Member] Litigation settlement amount, common fund established Litigation Settlement Amount Awarded To Other Party Receivable from applicable insurance Loss Contingency Receivable Settlement awarded in attorney's fees Litigation Settlement Amount Awarded From Other Party