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INCOME TAXES - Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2023
Jan. 31, 2022
Jan. 31, 2021
Changes in the balance of gross unrecognized tax benefits      
Gross unrecognized tax benefits, beginning of year $ 84,229 $ 84,847 $ 85,327
Increases related to tax positions taken during the current year 645 672 706
Increases related to tax positions taken during prior years 4,260 430 0
(Decreases) increases related to foreign currency exchange rates (404) 45 136
Reductions for tax positions of prior years (84) (152) (193)
Lapses of statutes of limitations (718) (1,613) (1,129)
Gross unrecognized tax benefits, end of year $ 87,928 $ 84,229 $ 84,847