NOTES PAYABLE AND OTHER LIABILITIES - Accrued expenses (Details) - USD ($) $ in Thousands	Jan. 31, 2020	Jan. 31, 2019
Notes Payable [Abstract]
Accrued bonuses	$ 40,980	$ 44,519
Other accrued expenses	60,858	58,322
Total	$ 101,838	$ 102,841

Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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