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Description of Business, Basis of Presentation, and Significant Accounting Policies (Tables) | 12 Months Ended
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May 31, 2020
Description of Business, Basis of Presentation, and Significant Accounting Policies [Abstract] |
Estimated Useful Lives of Depreciable Assets |
Category |  | Depreciable life
Buildings and improvements |  | 10 to 35 years or the remaining life, whichever is shorter
Data processing equipment |  | Three to four year s
Furniture, fixtures, and equipment |  | Two to seven year s
Leasehold improvements |  | 10 years or the life of the lease, whichever is shorter

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