NOTES PAYABLE AND OTHER LIABILITIES - Accrued expenses (Details) - USD ($) $ in Thousands	Jan. 31, 2021	Jan. 31, 2020
Notes Payable and Other Liabilities [Abstract]
Accrued bonuses	$ 23,851	$ 40,980
Other accrued expenses	78,936	60,858
Total	$ 102,787	$ 101,838

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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