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v2.4.1.9

Investments - Significant Unobservable Inputs (Details) (USD $) In Millions, unless otherwise specified | 0 Months Ended
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Apr. 30, 2014
Shred-it Partnership |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Equity method investment, recorded at fair value | 339.4 us-gaap_EquityMethodInvestmentsFairValueDisclosure / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = ctas_ShreditPartnershipMember
Minimum |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
EBITDA Margin | 20.00%ctas_FairValueInputsEarningsbeforeInterestTaxesDepreciationandAmortizationMargin / us-gaap_RangeAxis = us-gaap_MinimumMember
Ratio of capital expenditures to revenues | 4.50%ctas_FairValueInputsCapitalExpenditurestoRevenuesRatio / us-gaap_RangeAxis = us-gaap_MinimumMember
Long-term revenue growth rate | 1.50%us-gaap_FairValueInputsLongTermRevenueGrowthRate / us-gaap_RangeAxis = us-gaap_MinimumMember
WACC Rate | 9.00%us-gaap_FairValueInputsDiscountRate / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
EBITDA Margin | 22.00%ctas_FairValueInputsEarningsbeforeInterestTaxesDepreciationandAmortizationMargin / us-gaap_RangeAxis = us-gaap_MaximumMember
Ratio of capital expenditures to revenues | 5.50%ctas_FairValueInputsCapitalExpenditurestoRevenuesRatio / us-gaap_RangeAxis = us-gaap_MaximumMember
Long-term revenue growth rate | 2.00%us-gaap_FairValueInputsLongTermRevenueGrowthRate / us-gaap_RangeAxis = us-gaap_MaximumMember
WACC Rate | 9.00%us-gaap_FairValueInputsDiscountRate / us-gaap_RangeAxis = us-gaap_MaximumMember

X
- Definition Fair Value Inputs, Capital Expenditures to Revenues Ratio + References No definition available. + Details
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- Definition Fair Value Inputs, Earnings before Interest, Taxes, Depreciation, and Amortization Margin + References No definition available. + Details
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- Definition Fair value portion of investments accounted under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35740979&loc=d3e32014-111567 + Details
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- Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Percentage of assumed long-term growth in revenues, used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Details
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- Details
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- Details
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