XML 44 R35.htm IDEA: XBRL DOCUMENT v3.22.2.2
Cash Equivalents and Investments - Narrative (Details)
9 Months Ended 12 Months Ended
Oct. 31, 2022
USD ($)
investment
Jan. 31, 2022
USD ($)
investment
Investments, Debt and Equity Securities [Abstract]    
Interest receivable $ 8,900,000 $ 6,000,000
Number of short-term investments in unrealized loss positions (in investments) | investment 189 193
Other-than-temporary impairment short term investment $ 0 $ 0
Strategic investments without a readily determinable fair value $ 23,600,000 $ 15,300,000