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Leases - Summary of Maturities of Lease Liabilities (Detail) $ in Thousands	Jul. 31, 2019 USD ($)
Operating
2020 (excluding the three months ended July 31, 2019)	$ 44,919
2021	54,799
2022	47,188
2023	40,144
2024	34,803
Thereafter	74,369
Total lease payments	296,222
Less: imputed interest	41,765
Total	254,457
Financing
2020 (excluding the three months ended July 31, 2019)	1,438
2021	1,462
2022	984
2023	326
2024	112
Total lease payments	4,322
Less: imputed interest	241
Total	$ 4,081

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