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Goodwill and Intangible Assets, Net of Accumulated Amortization (Tables) | 9 Months Ended
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Feb. 28, 2018
Goodwill and Intangible Assets, Net of Accumulated Amortization [Abstract] |
Components of Intangible Assets, at Cost | ﻿
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | February 28, |  | May 31,
﻿In millions |  | 2018 |  | 2017
﻿Client lists (1) |  | $ | 308.4 |  | $ | 293.5
﻿Other intangible assets |  |  | 5.7 |  |  | 5.4
﻿Total intangible assets, gross |  |  | 314.1 |  |  | 298.9
﻿Less: Accumulated amortization |  |  | 209.0 |  |  | 241.3
﻿Intangible assets, net of accumulated amortization |  | $ | 105.1 |  | $ | 57.6
﻿
| (1) |  | Client lists include current estimates of amounts acquired from Lessor as of February 28, 2018. Refer to Note C for further details.
Estimated Amortization Expense |
﻿ |  |  |
In millions |  | Estimated amortization
Year ending May 31, |  | expense
﻿2018 |  | $ | 21.6
﻿2019 |  |  | 25.3
﻿2020 |  |  | 20.8
﻿2021 |  |  | 16.8
﻿2022 |  |  | 13.0
﻿

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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