Quarterly report pursuant to Section 13 or 15(d)

Convertible Preferred Stock and Stockholders Equity (Deficit) - Summary of Changes In Components of Accumulated Other Comprehensive Income (Loss) (Details)

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Convertible Preferred Stock and Stockholders Equity (Deficit) - Summary of Changes In Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Oct. 31, 2021
Jul. 31, 2021
Apr. 30, 2021
Oct. 31, 2020
Jul. 31, 2020
Apr. 30, 2020
Oct. 31, 2021
Oct. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Beginning Balance $ 1,898,953 $ 1,899,541 $ (803,704) $ (843,243) $ (835,301) $ (799,511) $ (803,704) $ (799,511)
Other comprehensive income (loss), net of tax 8,429 3,696 4,227 5,546 (23,942) 8,313 16,352 (10,083)
Ending Balance 1,883,405 1,898,953 1,899,541 (848,837) (843,243) (835,301) 1,883,405 (848,837)
Accumulated Other Comprehensive Income (Loss)                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Beginning Balance (4,598) (8,294) (12,521) (9,403) 14,539 6,226 (12,521) 6,226
Other comprehensive income (loss), net of tax 8,429 3,696 4,227 5,546 (23,942) 8,313    
Ending Balance 3,831 $ (4,598) (8,294) (3,857) $ (9,403) 14,539 3,831 (3,857)
Foreign Currency Translation Adjustments                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Beginning Balance     (12,504)     6,226 (12,504) 6,226
Other comprehensive income (loss), net of tax             16,424 (10,083)
Ending Balance 3,920     (3,857)     3,920 (3,857)
Unrealized Gain (Loss) on Marketable Securities                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Beginning Balance     $ (17)     $ 0 (17) 0
Other comprehensive income (loss), net of tax             (72) 0
Ending Balance $ (89)     $ 0     $ (89) $ 0