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Goodwill, Service Contracts and Other Assets - Estimated Future Amortization Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Goodwill, Service Contracts And Other Assets [Abstract]    
Amortization expense for service contracts and other assets $ 36,500 $ 35,100
2022 (remaining nine months) 104,871  
2023 122,464  
2024 110,029  
2025 96,113  
2026 79,013  
Thereafter 204,245  
Total future amortization expense $ 716,735