v3.26.1
Stockholders' Equity - Schedule of Changes In Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 30, 2026
Apr. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 2,082,587 $ 1,845,762
Other comprehensive (loss) income, net of tax (9,227) 34,413
Ending balance 1,902,965 1,698,461
Accumulated Other Comprehensive Income    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 36,601 (4,890)
Other comprehensive (loss) income, net of tax (9,227) 34,413
Ending balance 27,374 29,523
Foreign Currency Translation Adjustments    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 36,256 (4,518)
Other comprehensive (loss) income, net of tax (8,104) 33,857
Ending balance 28,152 29,339
Unrealized Gain (Loss) on Marketable Securities    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 345 (372)
Other comprehensive (loss) income, net of tax (1,123) 556
Ending balance $ (778) $ 184