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COMMITMENTS AND CONTINGENCIES - Future Minimum Rental Payments for Operating Leases Having Non-Cancelable Lease Periods in Excess of One Year (Details)
$ in Thousands
Jan. 31, 2019
USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
2020 $ 94,089
2021 81,085
2022 68,281
2023 60,358
2024 49,416
Thereafter 79,996
Future minimum rental payments for operating leases, total $ 433,225