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Property and Equipment, Net of Accumulated Depreciation (Tables) | 12 Months Ended
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May 31, 2017
Property and Equipment, Net of Accumulated Depreciation [Abstract] |
Components of Property and Equipment, at Cost | ﻿
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | May 31,
﻿In millions |  | 2017 |  | 2016
﻿Land and improvements |  | $ | 8.3 |  | $ | 8.3
﻿Buildings and improvements |  |  | 103.5 |  |  | 103.0
﻿Data processing equipment |  |  | 199.7 |  |  | 196.1
﻿Software(1) |  |  | 496.1 |  |  | 447.5
﻿Furniture, fixtures, and equipment |  |  | 115.2 |  |  | 125.0
﻿Leasehold improvements |  |  | 109.5 |  |  | 108.2
﻿Construction in progress(1) |  |  | 18.7 |  |  | 24.1
﻿Total property and equipment, gross |  |  | 1,051.0 |  |  | 1,012.2
﻿Less: Accumulated depreciation |  |  | 713.8 |  |  | 659.2
﻿Property and equipment, net of accumulated depreciation |  | $ | 337.2 |  | $ | 353.0
﻿
| (1) |  | Software includes both purchased software and costs capitalized related to internally developed software placed in service. Capitalized costs related to internally developed software that has not yet been placed in service is included in construction in progress.

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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