Property and Equipment, Net of Accumulated Depreciation (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Aug. 31, 2019 |
Aug. 31, 2018 |
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| Property and Equipment, Net of Accumulated Depreciation [Abstract] | ||
| Depreciation expense | $ 31.8 | $ 29.4 |
| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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