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Other Information Related to Leases (Detail)
$ in Thousands
6 Months Ended
Jul. 31, 2019
USD ($)
Cash paid for amounts included in the measurement of lease liabilities:  
Operating cash flows from operating leases $ 144,380
Right-of-use assets obtained in exchange for new operating lease liabilities $ 34,274
Weighted-average remaining lease term - operating leases 7 years 6 months
Weighted-average discount rate - operating leases 6.50%