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Goodwill, Service Contracts and Other Assets - Service Contracts (Details) - USD ($) $ in Thousands | 12 Months Ended
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May 31, 2022 | May 31, 2021
Service contracts [Roll Forward] |  |
Balance at the end of the period | $ 718,612 |
Service contracts |  |
Service contracts [Roll Forward] |  |
Balance at the beginning of the period | 408,445 | $ 451,529
Service contracts acquired | 44,738 | 6,237
Service contracts amortization | (58,353) | (57,767)
Foreign currency translation | (3,192) | 8,446
Balance at the end of the period | 391,638 | 408,445
Uniform rental and facility services | Service contracts |  |
Service contracts [Roll Forward] |  |
Balance at the beginning of the period | 369,141 | 407,611
Service contracts acquired | 32,695 | 2,369
Service contracts amortization | (49,152) | (49,016)
Foreign currency translation | (3,050) | 8,177
Balance at the end of the period | 349,634 | 369,141
First Aid and Safety Services | Service contracts |  |
Service contracts [Roll Forward] |  |
Balance at the beginning of the period | 18,294 | 19,805
Service contracts acquired | 10,384 | 2,132
Service contracts amortization | (4,392) | (3,912)
Foreign currency translation | (142) | 269
Balance at the end of the period | 24,144 | 18,294
All Other | Service contracts |  |
Service contracts [Roll Forward] |  |
Balance at the beginning of the period | 21,010 | 24,113
Service contracts acquired | 1,659 | 1,736
Service contracts amortization | (4,809) | (4,839)
Foreign currency translation | 0 | 0
Balance at the end of the period | $ 17,860 | $ 21,010

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