Stock-based Compensation - Stock Option Activities (Detail) $ / shares in Units, $ in Thousands	9 Months Ended
	Oct. 31, 2023 USD ($) $ / shares shares
Share-Based Payment Arrangement [Abstract]
Shares, Outstanding | shares	484,791
Shares, Exercised | shares	(65,188)
Shares, Forfeited | shares	(926)
Shares, Expired | shares	(1,064)
Shares, Outstanding | shares	417,613
Shares, Exercisable | shares	358,750
Weighted-Average Exercise Price, Outstanding | $ / shares	$ 42.18
Weighted-Average Exercise Price, Exercised | $ / shares	23.62
Weighted-Average Exercise Price, Forfeited | $ / shares	42.59
Weighted-Average Exercise Price, Expired | $ / shares	74.33
Weighted-Average Exercise Price, Outstanding | $ / shares	45
Weighted-Average Exercise Price, Exercisable | $ / shares	$ 46.3
Total Intrinsic Value Of Options Exercised | $	$ 3,418
Weighted-Average Remaining Contractual Term, Outstanding	3 years 8 months 4 days
Weighted-Average Remaining Contractual Term, Exercisable	3 years 1 month 24 days
Aggregate Intrinsic Value, Outstanding | $	$ 2,584
Aggregate Intrinsic Value, Exercisable | $	$ 1,790