Stock-Based Awards - Stock Options (Details) - Stock Options	3 Months Ended
	Apr. 30, 2022 $ / shares shares
Stock Options, Outstanding [Roll Forward]
Beginning balance (in shares) | shares	332,121
Granted (in shares) | shares	33,015
Options exercised (in shares) | shares	(15,363)
Ending balance (in shares) | shares	349,773
Exercisable options (in shares) | shares	252,983
Stock Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Beginning balance (in dollars per shares) | $ / shares	$ 52.39
Options granted (in dollars per shares) | $ / shares	97.49
Options exercised (in dollars per shares) | $ / shares	78.22
Ending balance (in dollars per shares) | $ / shares	55.51
Weighted average remaining contractual life, shares exercisable (In years) | $ / shares	$ 51.60