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Components of Provision for Income Tax Expense or Benefit (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2019
Income Tax Disclosure [Abstract]      
Current, Federal $ 11,623 $ 50,507 $ 71,520
Current, State 894 13,525 18,088
Current, Foreign 4,030 6,141 9,356
Current income tax expense, total 16,547 70,173 98,964
Deferred, Federal (7,801) (3,260) (6,818)
Deferred, State (3,325) (772) 965
Deferred, Foreign (3,144) 5,483 (5,561)
Deferred income tax expense (benefit), total (14,270) 1,451 (11,414)
Income tax expense (benefit), total $ 2,277 $ 71,624 $ 87,550