Equity Compensation - Summary of ESPP Activity (Details) - ESPP - 1998 Employee Qualified Stock Purchase Plan - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issued shares (in shares)	357	363	791	740
Average price of issued shares (in usd per share)	$ 164.30	$ 158.78	$ 163.91	$ 166.44
Weighted average grant date fair value of shares granted under the ESPP (in usd per share)	$ 67.29	$ 66.43	$ 68.70	$ 67.77