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Schedule by Year of Maturities of Operating Leases Liabilities with Original Terms in Excess of One Year (Detail)
$ in Thousands
Apr. 30, 2021
USD ($)
Leases [Abstract]  
2022 (excluding the three months ended April 30, 2021) $ 253,987
2023 267,224
2024 231,332
2025 194,938
2026 159,693
Thereafter 436,366
Total undiscounted future minimum lease payments 1,543,540
Less imputed interest (237,086)
Total discounted future minimum lease payments $ 1,306,454