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Other Information Related to Leases (Detail)
$ in Thousands
3 Months Ended
Apr. 30, 2019
USD ($)
Cash paid for amounts included in the measurement of lease liabilities:  
Operating cash flows from operating leases $ 70,615
Right-of-use assets obtained in exchange for new operating lease liabilities $ 2,719
Weighted-average remaining lease term - operating leases 7 years 4 months 24 days
Weighted-average discount rate - operating leases 6.50%