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Goodwill and Intangible Assets, Net of Accumulated Amortization (Details) (USD $)
In Millions, unless otherwise specified |
Feb. 28, 2015
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May 31, 2014
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| Components of intangible assets, at cost | ||
| Client lists | $ 244.4us-gaap_FiniteLivedCustomerListsGross | $ 240.9us-gaap_FiniteLivedCustomerListsGross |
| Other intangible assets | 3.2us-gaap_OtherFiniteLivedIntangibleAssetsGross | 2.6us-gaap_OtherFiniteLivedIntangibleAssetsGross |
| Total intangible assets, gross | 247.6us-gaap_FiniteLivedIntangibleAssetsGross | 243.5us-gaap_FiniteLivedIntangibleAssetsGross |
| Less: Accumulated amortization | 212.0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | 202.9us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |
| Intangible assets, net of accumulated amortization | 35.6us-gaap_IntangibleAssetsNetExcludingGoodwill | 40.6us-gaap_IntangibleAssetsNetExcludingGoodwill |
| Estimated future amortization expense relating to intangible assets | ||
| Fiscal year ending May 31, 2015 | 14.4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths | |
| Fiscal year ending May 31, 2016 | 11.2us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo | |
| Fiscal year ending May 31, 2017 | 8.1us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree | |
| Fiscal year ending May 31, 2018 | 5.5us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour | |
| Fiscal year ending May 31, 2019 | $ 3.5us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive |
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- Definition
Gross carrying amount before accumulated amortization as of the balance sheet date of an asset comprised of customer information, acquired in a business combination or other transaction, having a finite beneficial life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Gross carrying amount before accumulated amortization as of the balance sheet date of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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