Business Combinations (Narrative) (Details) $ in Millions |
3 Months Ended | 9 Months Ended | |||||||||||||||||
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Dec. 20, 2018
USD ($)
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Feb. 28, 2018
USD ($)
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Aug. 18, 2017
USD ($)
state
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Feb. 28, 2019
USD ($)
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Feb. 28, 2018
USD ($)
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Feb. 28, 2019
USD ($)
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Feb. 28, 2018
USD ($)
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May 31, 2018
USD ($)
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[1] | |||||||||||
| Business Acquisition [Line Items] | |||||||||||||||||||
| Restricted cash | [2] | [1] | $ 134.4 | [1] | $ 134.4 | [1] | |||||||||||||
| Revenues | 1,070.4 | 936.1 | [3] | 2,792.1 | 2,532.0 | [3] | |||||||||||||
| Net income | 324.6 | 367.2 | [1],[3] | 804.0 | [2] | 776.4 | [1],[2],[3] | ||||||||||||
| Goodwill | 1,781.5 | $ 1,781.5 | $ 814.0 | ||||||||||||||||
| Oasis Outsourcing Group Holdings, L.P. [Member] | |||||||||||||||||||
| Business Acquisition [Line Items] | |||||||||||||||||||
| Effective acquisition date | Dec. 20, 2018 | ||||||||||||||||||
| Purchase price | $ 984.1 | ||||||||||||||||||
| Restricted cash | 132.1 | ||||||||||||||||||
| Credit facility portion of purchase price | 800.0 | ||||||||||||||||||
| Cash acquired | 262.3 | ||||||||||||||||||
| Revenues | 72.7 | $ 72.7 | |||||||||||||||||
| Net income | 3.5 | 3.5 | |||||||||||||||||
| Incurred acquisition and integration costs | $ 1.4 | 3.8 | |||||||||||||||||
| Intangible assets | 310.9 | ||||||||||||||||||
| Goodwill | $ 968.8 | ||||||||||||||||||
| Excluded incurred costs related to acquisition | 2.7 | ||||||||||||||||||
| Excluded incurred costs related to acquisition, net of tax | $ 2.0 | ||||||||||||||||||
| Included incurred costs related to acquisition | 2.7 | ||||||||||||||||||
| Included incurred costs related to acquisition, net of tax | 1.7 | ||||||||||||||||||
| Oasis Outsourcing Group Holdings, L.P. [Member] | Weighted Average [Member] | |||||||||||||||||||
| Business Acquisition [Line Items] | |||||||||||||||||||
| Amortization period | 10 years | ||||||||||||||||||
| Lessor Group [Member] | |||||||||||||||||||
| Business Acquisition [Line Items] | |||||||||||||||||||
| Effective acquisition date | Feb. 28, 2018 | ||||||||||||||||||
| Purchase price | 162.5 | ||||||||||||||||||
| Cash acquired | 13.4 | ||||||||||||||||||
| Goodwill | $ 112.3 | $ 112.3 | $ 112.3 | ||||||||||||||||
| HR Outsourcing Holdings, Inc. [Member] | |||||||||||||||||||
| Business Acquisition [Line Items] | |||||||||||||||||||
| Effective acquisition date | Aug. 18, 2017 | ||||||||||||||||||
| Purchase price | $ 75.4 | ||||||||||||||||||
| Cash portion of purchase price | 42.2 | ||||||||||||||||||
| Common stock issued portion of purchase price | 33.2 | ||||||||||||||||||
| Goodwill | $ 51.1 | ||||||||||||||||||
| HR Outsourcing Holdings, Inc. [Member] | Minimum [Member] | |||||||||||||||||||
| Business Acquisition [Line Items] | |||||||||||||||||||
| Number of states | state | 35 | ||||||||||||||||||
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- Definition Business Combination Acquisition Included Incurred Costs No definition available.
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- Definition Business Combination Acquisition Included Incurred Costs, Net Of Tax No definition available.
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- Definition Business Combination Acquisition Related Costs, Net Of Tax No definition available.
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- Definition Business Combination Integration Related Costs And Acquisition Costs No definition available.
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- Definition Number of states in which service is provided No definition available.
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- Definition Payments to Acquire Businesses, Borrowing On Debt No definition available.
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- Definition Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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