Funds Held for Clients and Corporate Investments (Realized Gains and Losses from Sale of Available-for-sale Securities) (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Aug. 31, 2022 |
Aug. 31, 2021 |
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| Funds Held for Clients and Corporate Investments [Abstract] | ||
| Gross realized gains | $ 0.1 | $ 0.1 |
| Net realized gains | $ 0.1 | $ 0.1 |
| X | ||||||||||
- Definition Funds held for clients and corporate investments. No definition available.
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| X | ||||||||||
- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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