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Segment Information - Information Related to Operating Segments (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Aug. 31, 2019 | Aug. 31, 2018 | May 31, 2019
Segment Reporting Information |  |  |
Revenue | $ 1,811,139 | $ 1,697,975 |
Income (loss) before income taxes | 278,987 | 241,420 |
Total assets | 7,661,900 | 7,287,204 | $ 7,436,662
Operating Segments | Uniform Rental and Facility Services |  |  |
Segment Reporting Information |  |  |
Revenue | 1,454,527 | 1,374,938 |
Income (loss) before income taxes | 269,011 | 231,534 |
Total assets | 6,607,453 | 6,298,849 |
Operating Segments | First Aid and Safety Services |  |  |
Segment Reporting Information |  |  |
Revenue | 172,090 | 153,417 |
Income (loss) before income taxes | 24,769 | 21,983 |
Total assets | 536,652 | 486,965 |
Operating Segments | All Other |  |  |
Segment Reporting Information |  |  |
Revenue | 184,522 | 169,620 |
Income (loss) before income taxes | 12,366 | 11,711 |
Total assets | 416,282 | 383,034 |
Corporate |  |  |
Segment Reporting Information |  |  |
Revenue | 0 | 0 |
Income (loss) before income taxes | (27,159) | (23,808) |
Total assets | $ 101,513 | $ 118,356 |

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