Equity Compensation - Summary of ESPP Activity (Details) - ESPP - Employee Qualified Stock Purchase Plan 1998 - $ / shares shares in Thousands	6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issued shares (in shares)	434	377
Average price of issued shares (in usd per share)	$ 163.59	$ 173.83
Weighted average grant date fair value of shares granted under the ESPP (in usd per share)	$ 71.34	$ 69.19