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Income Taxes - Change in Balance of Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Jan. 31, 2020
Income Tax Disclosure [Abstract]      
Balance ,beginning of the year $ 384 $ 362 $ 618
Increases in prior period tax positions 63 59 0
Increases in current period tax positions 67 5 2
Reductions related to lapse of statutes of limitations (211) (42) (26)
Reductions related to settlement with tax authorities 0 0 (232)
Balance at January 31 $ 303 $ 384 $ 362