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Schedule of Summary of Future Minimum Lease Commitments (Detail)
$ in Thousands
May 31, 2019
USD ($)
Leases [Abstract]  
2020 $ 59,163
2021 49,731
2022 40,339
2023 32,798
2024 27,716
Thereafter 119,607
Total Minimum Lease Commitments $ 329,354