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Leases (Aggregate Operating Lease Maturities) (Details) $ in Thousands | Apr. 30, 2021 USD ($)
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Leases [Abstract] |
2021 | $ 215,610
2022 | 137,824
2023 | 73,066
2024 | 27,219
2025 | 3,713
2027 and thereafter | 5,633
Total future undiscounted operating lease payments | 463,065
Less imputed interest | (14,046)
Total operating lease liabilities | $ 449,019

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