$CTAS
CINTAS CORP Stock $ctas

$ctas Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-K Financial Statement

#000072325421000021 Filed on July 28, 2021

Income Statement

Concept	2021 Q2	2020 Q2	2019 Q2
Revenue	$1.836B	$1.620B	$1.794B
YoY Change	13.34%	-9.71%	7.44%
Cost Of Revenue	$976.6M	$911.8M	$970.2M
YoY Change	7.11%	-6.02%	5.78%
Gross Profit	$859.1M	$707.8M	$823.6M
YoY Change	21.37%	-14.05%	9.47%
Gross Profit Margin	46.8%	43.7%	45.91%
Selling, General & Admin	$476.4M	$446.6M	$508.2M
YoY Change	6.67%	-12.12%	7.72%
% of Gross Profit	55.46%	63.1%	61.71%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$98.15M	$96.50M	$93.80M
YoY Change	1.71%	2.88%	25.91%
% of Gross Profit	11.43%	13.63%	11.39%
Operating Expenses	$497.5M	$466.7M	$508.2M
YoY Change	6.6%	-8.17%	7.69%
Operating Profit	$361.5M	$241.1M	$315.4M
YoY Change	49.94%	-23.54%	12.45%
Interest Expense	-$24.45M	-$25.80M	-$25.50M
YoY Change	-5.22%	1.18%	4.08%
% of Operating Profit	-6.76%	-10.7%	-8.09%
Other Income/Expense, Net
YoY Change
Pretax Income	$332.0M	$181.7M	$288.9M
YoY Change	82.71%	-37.11%	19.88%
Income Tax	$64.27M	$37.10M	$61.50M
% Of Pretax Income	19.36%	20.42%	21.29%
Net Earnings	$267.7M	$144.6M	$226.1M
YoY Change	85.15%	-36.05%	21.43%
Net Earnings / Revenue	14.58%	8.93%	12.61%
Basic Earnings Per Share
Diluted Earnings Per Share	$2.485M	$1.362M	$2.071M
COMMON SHARES
Basic Shares Outstanding	103.0M shares	103.8M shares	105.0M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2021 Q2	2020 Q2	2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$493.6M	$145.4M	$96.65M
YoY Change	239.5%	50.45%	-30.33%
Cash & Equivalents	$493.6M	$145.4M	$96.65M
Short-Term Investments			$0.00
Other Short-Term Assets	$943.9M	$885.0M	$887.4M
YoY Change	6.65%	-0.27%	20.78%
Inventory	$481.8M	$408.9M	$334.6M
Prepaid Expenses
Receivables	$901.7M	$870.4M	$910.1M
Other Receivables	$22.28M	$0.00	$7.500M
Total Short-Term Assets	$2.843B	$2.310B	$2.236B
YoY Change	23.1%	3.28%	9.43%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.318B	$1.403B	$1.431B
YoY Change	-6.03%	-1.93%	3.47%
Goodwill	$2.913B	$2.870B	$2.842B
YoY Change	1.5%	0.97%	-0.16%
Intangibles
YoY Change
Long-Term Investments	$19.39M	$19.00M	$18.60M
YoY Change	2.04%	2.15%	13.41%
Other Assets	$310.4M	$260.8M	$240.3M
YoY Change	19.04%	8.51%	10.84%
Total Long-Term Assets	$5.394B	$5.360B	$5.200B
YoY Change	0.62%	3.07%	5.81%
TOTAL ASSETS
Total Short-Term Assets	$2.843B	$2.310B	$2.236B
Total Long-Term Assets	$5.394B	$5.360B	$5.200B
Total Assets	$8.237B	$7.670B	$7.437B
YoY Change	7.39%	3.14%	6.88%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$230.8M	$231.0M	$226.0M
YoY Change	-0.09%	2.2%	5.09%
Accrued Expenses	$518.9M	$456.7M	$433.9M
YoY Change	13.63%	5.23%	3.29%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$312.3M
YoY Change		-100.0%
Long-Term Debt Due	$899.1M	$0.00	$312.3M
YoY Change		-100.0%
Total Short-Term Liabilities	$1.934B	$885.2M	$1.128B
YoY Change	118.49%	-21.51%	45.35%
LONG-TERM LIABILITIES
Long-Term Debt	$1.643B	$2.540B	$2.538B
YoY Change	-35.31%	0.09%	0.09%
Other Long-Term Liabilities	$585.4M	$621.2M	$330.5M
YoY Change	-5.76%	87.96%	18.93%
Total Long-Term Liabilities	$2.615B	$3.549B	$3.306B
YoY Change	-26.33%	7.36%	2.37%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.934B	$885.2M	$1.128B
Total Long-Term Liabilities	$2.615B	$3.549B	$3.306B
Total Liabilities	$4.549B	$4.435B	$4.434B
YoY Change	2.58%	0.02%	10.69%
SHAREHOLDERS EQUITY
Retained Earnings	$7.877B	$7.297B	$6.691B
YoY Change	7.96%	9.05%	11.02%
Common Stock	$1.615B	$1.274B	$1.068B
YoY Change	26.75%	19.28%	23.69%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$5.736B	$5.182B	$4.718B
YoY Change	10.69%	9.85%	27.46%
Treasury Stock Shares	85.01M shares	83.38M shares	81.51M shares
Shareholders Equity	$3.688B	$3.235B	$3.003B
YoY Change
Total Liabilities & Shareholders Equity	$8.237B	$7.670B	$7.437B
YoY Change	7.39%	3.14%	3.12%

Cashflow Statement

Concept	2021 Q2	2020 Q2	2019 Q2
OPERATING ACTIVITIES
Net Income	$267.7M	$144.6M	$226.1M
YoY Change	85.15%	-36.05%	21.43%
Depreciation, Depletion And Amortization	$98.15M	$96.50M	$93.80M
YoY Change	1.71%	2.88%	25.91%
Cash From Operating Activities	$455.9M	$357.0M	$397.2M
YoY Change	27.71%	-10.12%	30.96%
INVESTING ACTIVITIES
Capital Expenditures	-$43.07M	-$40.90M	-$68.90M
YoY Change	5.31%	-40.64%	-8.98%
Acquisitions
YoY Change
Other Investing Activities	-$5.445M	-$8.000M	-$3.700M
YoY Change	-31.94%	116.22%	-112.37%
Cash From Investing Activities	-$48.52M	-$48.90M	-$72.60M
YoY Change	-0.79%	-32.64%	58.86%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-469.8M	-394.9M	-308.0M
YoY Change	18.96%	28.21%	13.32%
NET CHANGE
Cash From Operating Activities	455.9M	357.0M	397.2M
Cash From Investing Activities	-48.52M	-48.90M	-72.60M
Cash From Financing Activities	-469.8M	-394.9M	-308.0M
Net Change In Cash	-62.34M	-86.80M	16.60M
YoY Change	-28.18%	-622.89%	-216.9%
FREE CASH FLOW
Cash From Operating Activities	$455.9M	$357.0M	$397.2M
Capital Expenditures	-$43.07M	-$40.90M	-$68.90M
Free Cash Flow	$499.0M	$397.9M	$466.1M
YoY Change	25.41%	-14.63%	22.98%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000723254
CY2021	dei	Local Phone Number LocalPhoneNumber	459-1200
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-05-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--05-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	0-11399
CY2021	dei	Entity Registrant Name EntityRegistrantName	Cintas Corp
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WA
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	31-1188630
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	6800 Cintas Boulevard
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	P.O. Box 625737
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Cincinnati,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	OH
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	45262-5737
CY2021	dei	City Area Code CityAreaCode	(513)
CY2021	dei	Security12b Title Security12bTitle	Common stock, no par value
CY2021	dei	Trading Symbol TradingSymbol	CTAS
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2020Q4	dei	Entity Public Float EntityPublicFloat	37301430580	USD
CY2021Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	102967245	shares
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7116340000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7085120000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6892303000	USD
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1929159000	USD
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2071052000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1980644000	USD
CY2021	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	0	USD
CY2020	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	0	USD
CY2019	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	14410000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	1385492000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	1162696000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	1133534000	USD
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2020	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	69373000	USD
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	467000	USD
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	988000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	1228000	USD
CY2021	us-gaap	Interest Expense InterestExpense	98210000	USD
CY2020	us-gaap	Interest Expense InterestExpense	105393000	USD
CY2019	us-gaap	Interest Expense InterestExpense	101736000	USD
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CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1058291000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1102399000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	176781000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	181931000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	219764000	USD
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1110968000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	876360000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	882635000	USD
CY2021	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2020	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-107000	USD
CY2019	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	757000	USD
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-323000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2346000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1110968000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	876037000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	884981000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	10.52
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	8.36
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	8.23
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.02
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	10.52
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.36
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.25
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	10.24
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	8.11
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	7.97
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.02
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	10.24
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.11
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.99
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	5.01
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.55
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.05
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1110968000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	876037000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	884981000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	68182000	USD
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CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	36172000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-32793000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-8734000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	106843000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-94954000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-27659000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-463000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-463000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-717000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	1433000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	1433000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	1179000	USD
CY2021	ctas	Other Comprehensive Income Loss Other Adjustments Tax OtherComprehensiveIncomeLossOtherAdjustmentsTax	3578000	USD
CY2020	ctas	Other Comprehensive Income Loss Other Adjustments Tax OtherComprehensiveIncomeLossOtherAdjustmentsTax	-2802000	USD
CY2019	ctas	Other Comprehensive Income Loss Other Adjustments Tax OtherComprehensiveIncomeLossOtherAdjustmentsTax	-1618000	USD
CY2021	ctas	Other Comprehensive Income Loss Other Adjustments Netof Tax OtherComprehensiveIncomeLossOtherAdjustmentsNetofTax	10676000	USD
CY2020	ctas	Other Comprehensive Income Loss Other Adjustments Netof Tax OtherComprehensiveIncomeLossOtherAdjustmentsNetofTax	-8495000	USD
CY2019	ctas	Other Comprehensive Income Loss Other Adjustments Netof Tax OtherComprehensiveIncomeLossOtherAdjustmentsNetofTax	-5085000	USD
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CY2019	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-9635000	USD
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CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-116203000	USD
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CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1295236000	USD
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CY2021Q2	us-gaap	Inventory Net InventoryNet	481797000	USD
CY2020Q2	us-gaap	Inventory Net InventoryNet	408898000	USD
CY2021Q2	ctas	Uniforms And Other Rental Items In Service UniformsAndOtherRentalItemsInService	810104000	USD
CY2020Q2	ctas	Uniforms And Other Rental Items In Service UniformsAndOtherRentalItemsInService	770411000	USD
CY2021Q2	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	22282000	USD
CY2020Q2	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	0	USD
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CY2021Q2	us-gaap	Assets Current AssetsCurrent	2843309000	USD
CY2020Q2	us-gaap	Assets Current AssetsCurrent	2309699000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1318438000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1403065000	USD
CY2021Q2	us-gaap	Investments Investments	274616000	USD
CY2020Q2	us-gaap	Investments Investments	214847000	USD
CY2021Q2	us-gaap	Goodwill Goodwill	2913069000	USD
CY2020Q2	us-gaap	Goodwill Goodwill	2870020000	USD
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CY2020Q2	ctas	Service Contracts Finite Lived Intangible Assets Net ServiceContractsFiniteLivedIntangibleAssetsNet	451529000	USD
CY2021Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	168532000	USD
CY2020Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	159967000	USD
CY2021Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	310414000	USD
CY2020Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	260758000	USD
CY2021Q2	us-gaap	Assets Assets	8236823000	USD
CY2020Q2	us-gaap	Assets Assets	7669885000	USD
CY2021Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	230786000	USD
CY2020Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	230995000	USD
CY2021Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	241469000	USD
CY2020Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	127417000	USD
CY2021Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	518910000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	456653000	USD
CY2021Q2	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	0	USD
CY2020Q2	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	27099000	USD
CY2021Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	43850000	USD
CY2020Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	43031000	USD
CY2021Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	899070000	USD
CY2020Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2021Q2	us-gaap	Liabilities Current LiabilitiesCurrent	1934085000	USD
CY2020Q2	us-gaap	Liabilities Current LiabilitiesCurrent	885195000	USD
CY2021Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1642833000	USD
CY2020Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2539705000	USD
CY2021Q2	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	386647000	USD
CY2020Q2	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	388579000	USD
CY2021Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	130774000	USD
CY2020Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	122695000	USD
CY2021Q2	us-gaap	Accounts Payable And Accrued Liabilities Noncurrent AccountsPayableAndAccruedLiabilitiesNoncurrent	454637000	USD
CY2020Q2	us-gaap	Accounts Payable And Accrued Liabilities Noncurrent AccountsPayableAndAccruedLiabilitiesNoncurrent	498509000	USD
CY2021Q2	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	2614891000	USD
CY2020Q2	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	3549488000	USD
CY2020Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000	shares
CY2021Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000	shares
CY2020Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	425000000	shares
CY2021Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	425000000	shares
CY2021Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	189071185	shares
CY2021Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	104061391	shares
CY2020Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	186793207	shares
CY2020Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	103415368	shares
CY2021Q2	us-gaap	Common Stock Value CommonStockValue	1417343000	USD
CY2020Q2	us-gaap	Common Stock Value CommonStockValue	1102689000	USD
CY2021Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	98859000	USD
CY2020Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	171521000	USD
CY2021Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	7877015000	USD
CY2020Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	7296509000	USD
CY2021Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	85009794	shares
CY2020Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	83377839	shares
CY2021Q2	us-gaap	Treasury Stock Value TreasuryStockValue	5736258000	USD
CY2020Q2	us-gaap	Treasury Stock Value TreasuryStockValue	5182137000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	30888000	USD
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-153380000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	3687847000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	3235202000	USD
CY2021Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8236823000	USD
CY2020Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7669885000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	3016526000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	884981000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-55495000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	220764000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	139210000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	65371000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1016300000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	3002721000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	876037000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-116203000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	267956000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	115435000	USD
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	90519000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	464518000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	3235202000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1110968000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	184268000	USD
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	530462000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	112035000	USD
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	129957000	USD
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	554121000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	3687847000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1110968000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	876037000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	884981000	USD
CY2021	us-gaap	Depreciation Depreciation	243836000	USD
CY2020	us-gaap	Depreciation Depreciation	235905000	USD
CY2019	us-gaap	Depreciation Depreciation	223631000	USD
CY2021	us-gaap	Adjustment For Amortization AdjustmentForAmortization	144115000	USD
CY2020	us-gaap	Adjustment For Amortization AdjustmentForAmortization	143148000	USD
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	136462000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	112035000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	115435000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	139210000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	22030000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	3200000	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	5114000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	9220000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2020	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	69373000	USD
CY2021	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	42242000	USD
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	16252000	USD
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-31708000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	32576000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-39681000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	94918000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	75501000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	74773000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	60039000	USD
CY2021	ctas	Increase Decrease In Uniforms And Other Rental Items In Service IncreaseDecreaseInUniformsAndOtherRentalItemsInService	35659000	USD
CY2020	ctas	Increase Decrease In Uniforms And Other Rental Items In Service IncreaseDecreaseInUniformsAndOtherRentalItemsInService	-12773000	USD
CY2019	ctas	Increase Decrease In Uniforms And Other Rental Items In Service IncreaseDecreaseInUniformsAndOtherRentalItemsInService	90228000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	102600000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	110248000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	100765000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2604000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	2629000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	12276000	USD
CY2021	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	113769000	USD
CY2020	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-26476000	USD
CY2019	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	15321000	USD
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-6735000	USD
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	49906000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	30910000	USD
CY2021	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-49150000	USD
CY2020	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	34498000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	11886000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1360740000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1291483000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1067862000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	143470000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	230289000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	276719000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-285398000	USD
CY2021	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	4299000	USD
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	10031000	USD
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	17841000	USD
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	31705000	USD
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	13300000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	3200000	USD
CY2021	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	0	USD
CY2020	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	0	USD
CY2019	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	73342000	USD
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	10038000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	53720000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	9813000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	11113000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	4658000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	7807000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-137215000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-235638000	USD
CY2021	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	0	USD
CY2020	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-112500000	USD
CY2019	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	112500000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	200000000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	200000000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	129957000	USD
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	90519000	USD
CY2019	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	65371000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	451327000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	267956000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	220764000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	554121000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	464518000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1016300000	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4377000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-752000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-14112000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-879868000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-955207000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-873305000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4581000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-2121000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-998000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	348238000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	48757000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-42079000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	145402000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	96645000	USD
CY2018Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	138724000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	493640000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	145402000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	96645000	USD
CY2021Q2	ctas	Numberof Business Clients NumberofBusinessClients	1000000	business
CY2021	us-gaap	Use Of Estimates UseOfEstimates	The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles (U.S. GAAP) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The Company’s results are affected by economic, political, legislative, regulatory and legal actions. Economic conditions, such as recessionary trends, inflation, interest and monetary exchange rates, government fiscal policies, government policies surrounding the containment of COVID-19 and changes in the prices of raw materials, can have a significant effect on operations. These factors and other events may cause actual results to differ from management's estimates.
CY2020Q2	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	165427000	USD
CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	31800000	USD
CY2020Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	31800000	USD
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	14200000	USD
CY2021Q2	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	15109000	USD
CY2020Q2	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	18661000	USD
CY2021Q2	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	37664000	USD
CY2020Q2	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	29497000	USD
CY2021Q2	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	429024000	USD
CY2020Q2	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	360740000	USD
CY2021Q2	us-gaap	Inventory Net InventoryNet	481797000	USD
CY2020Q2	us-gaap	Inventory Net InventoryNet	408898000	USD
CY2021Q2	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	111000000.0	USD
CY2020Q2	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	45500000	USD
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	43600000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	9200000	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	5100000	USD
CY2021Q2	ctas	Employee Related Liabilities Current Defined Contribution Plans And Profit Sharing EmployeeRelatedLiabilitiesCurrentDefinedContributionPlansAndProfitSharing	129348000	USD
CY2020Q2	ctas	Employee Related Liabilities Current Defined Contribution Plans And Profit Sharing EmployeeRelatedLiabilitiesCurrentDefinedContributionPlansAndProfitSharing	134846000	USD
CY2021Q2	us-gaap	Dividends Payable Current DividendsPayableCurrent	79135000	USD
CY2021	us-gaap	Number Of Reporting Units NumberOfReportingUnits	4	reportingUnit
CY2020	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2021	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2019	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2021Q2	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	156447000	USD
CY2020Q2	us-gaap	Dividends Payable Current DividendsPayableCurrent	0	USD
CY2021Q2	us-gaap	Interest Payable Current InterestPayableCurrent	24420000	USD
CY2020Q2	us-gaap	Interest Payable Current InterestPayableCurrent	24538000	USD
CY2021Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	129560000	USD
CY2020Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	131842000	USD
CY2021Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	518910000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	456653000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3313860000	USD
CY2021	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	Cintas formally documents all relationships between hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking various hedge transactions. Derivatives are recorded at fair value on the consolidated balance sheet, and gains and losses are recorded as adjustments to income or other comprehensive income, as appropriate. For derivative financial instruments that are designated as a hedge, unrealized gains and losses related to the effective portion are either recognized in income immediately to offset the realized gain or loss on the hedged item, or are deferred and reported as a component of other comprehensive income (loss) in shareholders' equity and subsequently recognized in net income when the hedged item affects net income.
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7116340000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7085120000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6892303000	USD
CY2021Q2	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	79400000	USD
CY2021Q2	us-gaap	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	227100000	USD
CY2020Q2	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	76200000	USD
CY2020Q2	us-gaap	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	227100000	USD
CY2021	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	83100000	USD
CY2020	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	77800000	USD
CY2019	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	71100000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3373659000	USD
CY2021Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2055221000	USD
CY2020Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1910795000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1318438000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1403065000	USD
CY2021Q2	us-gaap	Investments Investments	274600000	USD
CY2021Q2	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	252100000	USD
CY2021Q2	us-gaap	Equity Method Investments EquityMethodInvestments	19400000	USD
CY2021Q2	us-gaap	Other Investments OtherInvestments	3100000	USD
CY2020Q2	us-gaap	Investments Investments	214800000	USD
CY2020Q2	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	192700000	USD
CY2020Q2	us-gaap	Equity Method Investments EquityMethodInvestments	19000000.0	USD
CY2020Q2	us-gaap	Other Investments OtherInvestments	3100000	USD
CY2021	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2019	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2020	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
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CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	69400000	USD
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CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	32382000	USD
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-4803000	USD
CY2020Q2	us-gaap	Goodwill Goodwill	2870020000	USD
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	7274000	USD
CY2021	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	35775000	USD
CY2021Q2	us-gaap	Goodwill Goodwill	2913069000	USD
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CY2021Q2	ctas	Accumulated Amortization Of Other Assets AccumulatedAmortizationOfOtherAssets	298719000	USD
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CY2020Q2	ctas	Accumulated Amortization Of Other Assets AccumulatedAmortizationOfOtherAssets	213283000	USD
CY2020Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	260758000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	141900000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	140800000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	134000000.0	USD
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CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	91948000	USD
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CY2021Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	719864000	USD
CY2021Q2	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	930000	USD
CY2020Q2	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	0	USD
CY2021Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	899070000	USD
CY2020Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2021Q2	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	9283000	USD
CY2020Q2	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	13182000	USD
CY2021Q2	us-gaap	Long Term Debt LongTermDebt	1642833000	USD
CY2020Q2	us-gaap	Long Term Debt LongTermDebt	2539705000	USD
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CY2020	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-112500000	USD
CY2021Q2	us-gaap	Commercial Paper CommercialPaper	0	USD
CY2021Q2	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	120600000	USD
CY2020Q2	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	120600000	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	900000000.0	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	350000000.0	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0.0	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	50000000.0	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0.0	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	98300000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	105500000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	101800000	USD
CY2021Q2	us-gaap	Commercial Paper CommercialPaper	0	USD
CY2020Q2	us-gaap	Commercial Paper CommercialPaper	0	USD
CY2020Q2	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2021Q2	us-gaap	Line Of Credit LineOfCredit	0	USD
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CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	71000000.0	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	70400000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	69700000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	49345000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	50816000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	51850000	USD
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CY2021Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y3M29D
CY2020Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y2M8D
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	47564000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	39585000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	29553000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	22310000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	16779000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	30010000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	185801000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	11177000	USD
CY2021Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	174624000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	153736000	USD
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CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1061505000	USD
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CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	22389000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	40894000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1287749000	USD
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CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6985000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	9882000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	218861000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	195223000	USD
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CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-13292000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	34759000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	176781000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	181931000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	219764000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	270427000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	222258000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	231503000	USD
CY2021	ctas	Effective Income Tax Rate Reconciliation Adjustmentsfor Permanent Differences Amount EffectiveIncomeTaxRateReconciliationAdjustmentsforPermanentDifferencesAmount	-101870000	USD
CY2020	ctas	Effective Income Tax Rate Reconciliation Adjustmentsfor Permanent Differences Amount EffectiveIncomeTaxRateReconciliationAdjustmentsforPermanentDifferencesAmount	-67075000	USD
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CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	25294000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	31687000	USD
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CY2019	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	6506000	USD
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CY2020	ctas	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act Income Tax Withholdingon Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActIncomeTaxWithholdingonAccumulatedForeignEarningsAmount	0	USD
CY2019	ctas	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act Income Tax Withholdingon Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActIncomeTaxWithholdingonAccumulatedForeignEarningsAmount	690000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	426000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	176781000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	181931000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	219764000	USD
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CY2020Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6411000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	318655000	USD
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CY2021Q2	ctas	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Insurance And Contingencies DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsInsuranceAndContingencies	45802000	USD
CY2020Q2	ctas	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Insurance And Contingencies DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsInsuranceAndContingencies	45197000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	74898000	USD
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CY2021Q2	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	3885000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	7657000	USD
CY2021Q2	ctas	Deferred Tax Assets Treasury Locks DeferredTaxAssetsTreasuryLocks	3140000	USD
CY2020Q2	ctas	Deferred Tax Assets Treasury Locks DeferredTaxAssetsTreasuryLocks	39046000	USD
CY2021Q2	ctas	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	44530000	USD
CY2020Q2	ctas	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	42191000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	107528000	USD
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CY2021Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	320692000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	314917000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2037000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	308506000	USD
CY2021Q2	ctas	Deferred Tax Liabilities Inventory DeferredTaxLiabilitiesInventory	202846000	USD
CY2020Q2	ctas	Deferred Tax Liabilities Inventory DeferredTaxLiabilitiesInventory	189787000	USD
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CY2020Q2	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	177664000	USD
CY2021Q2	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	207834000	USD
CY2020Q2	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	207610000	USD
CY2021Q2	ctas	Deferred Tax Liabilities Deferred Expense Capitalized Contract Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedContractCosts	79356000	USD
CY2020Q2	ctas	Deferred Tax Liabilities Deferred Expense Capitalized Contract Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedContractCosts	77741000	USD
CY2021Q2	ctas	Deferred Tax Liabilities Operating Lease Right Of Use Assets DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets	44530000	USD
CY2020Q2	ctas	Deferred Tax Liabilities Operating Lease Right Of Use Assets DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets	42191000	USD
CY2021Q2	ctas	Deferred Tax Liabilities State Taxes And Other DeferredTaxLiabilitiesStateTaxesAndOther	3114000	USD
CY2020Q2	ctas	Deferred Tax Liabilities State Taxes And Other DeferredTaxLiabilitiesStateTaxesAndOther	2092000	USD
CY2021Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	705302000	USD
CY2020Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	697085000	USD
CY2021Q2	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	386647000	USD
CY2020Q2	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	388579000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6411000	USD
CY2019Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	7308000	USD
CY2021	ctas	Deferred Tax Assets Valuation Allowance Subtractions DeferredTaxAssetsValuationAllowanceSubtractions	4374000	USD
CY2020	ctas	Deferred Tax Assets Valuation Allowance Subtractions DeferredTaxAssetsValuationAllowanceSubtractions	897000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2037000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6411000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	245500000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	160300000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	173200000	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	34200000	USD
CY2020Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	35900000	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	4200000	USD
CY2020Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	3700000	USD
CY2019Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	48715000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3976000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	4325000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	5473000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	6873000	USD
CY2020Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	44670000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	4728000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2726000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	5593000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4074000	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	42457000	USD
CY2021	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	9509000	USD
CY2020	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	7097000	USD
CY2020Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	105357000	USD
CY2019Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	91935000	USD
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2050000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2881000	USD
CY2021	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	4460000	USD
CY2020	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-13662000	USD
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	3219000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	3121000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	99728000	USD
CY2020Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	105357000	USD
CY2020Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	68341000	USD
CY2019Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	62267000	USD
CY2021	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	3613000	USD
CY2020	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	2098000	USD
CY2021	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	3219000	USD
CY2020	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	3121000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	78244000	USD
CY2020Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	68341000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-21484000	USD
CY2020Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-37016000	USD
CY2021Q2	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	21500000	USD
CY2020Q2	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	37000000.0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-5000000.0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-16200000	USD
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2050000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2881000	USD
CY2021	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2924000	USD
CY2020	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2961000	USD
CY2021	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-222000	USD
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	0	USD
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-652000	USD
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-80000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0283
CY2020Q2	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0254
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0254
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0354
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0425
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0480
CY2021Q2	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1.000
CY2021Q2	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.000
CY2020Q2	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.000
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0425
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0480
CY2021Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	78244000	USD
CY2020Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	68341000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	300000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	4100000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	4200000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	4400000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	4500000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	4700000	USD
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	25000000.0	USD
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1110968000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	876360000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	882635000	USD
CY2021	ctas	Undistributed Earnings Loss Allocatedto Participating Securities Basicand Diluted UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted	7623000	USD
CY2020	ctas	Undistributed Earnings Loss Allocatedto Participating Securities Basicand Diluted UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted	8158000	USD
CY2019	ctas	Undistributed Earnings Loss Allocatedto Participating Securities Basicand Diluted UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted	9568000	USD
CY2021	ctas	Net Income Loss Available To Common Stockholders Basic After Adjustment Of Undistributed Earnings Allocated To Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAfterAdjustmentOfUndistributedEarningsAllocatedToParticipatingSecurities	1103345000	USD
CY2020	ctas	Net Income Loss Available To Common Stockholders Basic After Adjustment Of Undistributed Earnings Allocated To Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAfterAdjustmentOfUndistributedEarningsAllocatedToParticipatingSecurities	868202000	USD
CY2019	ctas	Net Income Loss Available To Common Stockholders Basic After Adjustment Of Undistributed Earnings Allocated To Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAfterAdjustmentOfUndistributedEarningsAllocatedToParticipatingSecurities	873067000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	104874000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	103816000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	106080000	shares
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	10.52
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	8.36
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	8.23
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1110968000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	876360000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	882635000	USD
CY2021	ctas	Undistributed Earnings Loss Allocatedto Participating Securities Basicand Diluted UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted	7623000	USD
CY2020	ctas	Undistributed Earnings Loss Allocatedto Participating Securities Basicand Diluted UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted	8158000	USD
CY2019	ctas	Undistributed Earnings Loss Allocatedto Participating Securities Basicand Diluted UndistributedEarningsLossAllocatedtoParticipatingSecuritiesBasicandDiluted	9568000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2021	ctas	Net Income Loss Available To Common Stockholders Basic After Adjustment Of Undistributed Earnings Allocated To Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAfterAdjustmentOfUndistributedEarningsAllocatedToParticipatingSecurities	1103345000	USD
CY2020	ctas	Net Income Loss Available To Common Stockholders Basic After Adjustment Of Undistributed Earnings Allocated To Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAfterAdjustmentOfUndistributedEarningsAllocatedToParticipatingSecurities	868202000	USD
CY2019	ctas	Net Income Loss Available To Common Stockholders Basic After Adjustment Of Undistributed Earnings Allocated To Participating Securities NetIncomeLossAvailableToCommonStockholdersBasicAfterAdjustmentOfUndistributedEarningsAllocatedToParticipatingSecurities	873067000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	104874000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	103816000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	106080000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2833000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3196000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3415000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	107707000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	107012000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	109495000	shares
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	10.24
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	8.11
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	7.97
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.02
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.02
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	200000	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	200000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	500000	shares
CY2021	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	200000	shares
CY2021	ctas	Share Based Payment Arrangement Shares Withheld For Tax Withholding Obligation Average Cost ShareBasedPaymentArrangementSharesWithheldForTaxWithholdingObligationAverageCost	302.52
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	74400000	USD
CY2020	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	300000	shares
CY2020	ctas	Share Based Payment Arrangement Shares Withheld For Tax Withholding Obligation Average Cost ShareBasedPaymentArrangementSharesWithheldForTaxWithholdingObligationAverageCost	260.89
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	68800000	USD
CY2019	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	300000	shares
CY2019	ctas	Share Based Payment Arrangement Shares Withheld For Tax Withholding Obligation Average Cost ShareBasedPaymentArrangementSharesWithheldForTaxWithholdingObligationAverageCost	204.50
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	62900000	USD
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	27800000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	66.52
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	48.20
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	47.68
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2006922	shares
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	8930186	shares
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	96.71
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1013005	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	219.37
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	3045	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	58.03
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	397304	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	155.39
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1333908	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	54.14
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1919976	shares
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	8208934	shares
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	123.80
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	575813	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	250.50
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	5432	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	72.17
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	312391	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	185.08
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1361525	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	70.03
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1913374	shares
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7105399	shares
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	145.54
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	747550	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	348.24
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	1452	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	59.51
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	91722	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	193.94
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1704251	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	83.31
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1548867	shares
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6055524	shares
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	191.11
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	402300000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	262100000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	193600000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	130000000.0	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	90500000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	65400000	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	30500000	USD
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	22400000	USD
CY2021	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	28.14
CY2021	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	361.09
CY2021Q2	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	6055524	shares
CY2021	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P6Y8M26D
CY2021Q2	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	191.11
CY2021Q2	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	1548867	shares
CY2021Q2	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	89.42
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	983600000	USD
CY2021Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	409100000	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y1M6D
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7116340000	USD
CY2021	us-gaap	Gross Profit GrossProfit	3314651000	USD
CY2021Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	224000000.0	USD
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y11M23D
CY2020	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-114770000	USD
CY2020	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	1433000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-116203000	USD
CY2021	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	185701000	USD
CY2021	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	1433000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	184268000	USD
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1929159000	USD
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-97743000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1287749000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	387951000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	143470000	USD
CY2021Q2	us-gaap	Assets Assets	8236823000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7085120000	USD
CY2020	us-gaap	Gross Profit GrossProfit	3233748000	USD
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2071052000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-104405000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1058291000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	379053000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	230289000	USD
CY2020Q2	us-gaap	Assets Assets	7669885000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6892303000	USD
CY2019	us-gaap	Gross Profit GrossProfit	3128588000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1980644000	USD
CY2019	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	14410000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	69373000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-100508000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1102399000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	360093000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	276719000	USD
CY2019Q2	us-gaap	Assets Assets	7436662000	USD

Files In Submission

Name	View Source	Status
0000723254-21-000021-index-headers.html	Edgar Link	pending
0000723254-21-000021-index.html	Edgar Link	pending
0000723254-21-000021.txt	Edgar Link	pending
0000723254-21-000021-xbrl.zip	Edgar Link	pending
a21-subsidiaries2021.htm	Edgar Link	pending
a22-subsidiaryguarantorsfy.htm	Edgar Link	pending
a23-consentofey2021.htm	Edgar Link	pending
ctas-20210531.htm	Edgar Link	pending
ctas-20210531.xsd	Edgar Link	pending
ctas-20210531_cal.xml	Edgar Link	unprocessable
ctas-20210531_def.xml	Edgar Link	unprocessable
ctas-20210531_g1.jpg	Edgar Link	pending
ctas-20210531_g2.jpg	Edgar Link	pending
ctas-20210531_htm.xml	Edgar Link	completed
ctas-20210531_lab.xml	Edgar Link	unprocessable
ctas-20210531_pre.xml	Edgar Link	unprocessable
ctas10k2021ex311.htm	Edgar Link	pending
ctas10k2021ex312.htm	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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$CTAS
CINTAS CORP Stock $ctas

2021 Q2 Form 10-K Financial Statement

#000072325421000021 Filed on July 28, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CTAS CINTAS CORP Stock $ctas

2021 Q2 Form 10-K Financial Statement

#000072325421000021 Filed on July 28, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CTAS
CINTAS CORP Stock $ctas