XML 61 R49.htm IDEA: XBRL DOCUMENT v3.23.3
Investments - Schedule of Marketable Equity Investments (Details) - USD ($)
$ in Thousands
Oct. 31, 2023
Jan. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]    
Total initial cost $ 14,817 $ 38,449
Cumulative net unrealized gains (losses) 14,356 42,317
Marketable securities    
Debt and Equity Securities, FV-NI [Line Items]    
Equity securities $ 29,173 $ 80,766