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Schedule II: Valuation and Qualifying Accounts
12 Months Ended
Jan. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II: Valuation and Qualifying Accounts
Schedule II: Valuation and Qualifying Accounts
The table below details the activity of the deferred tax valuation allowance for the fiscal years ended January 31, 2023, 2022, and 2021:

Balance at Beginning of YearAdditionsWrite-offs or DeductionsBalance at End of Year
(in thousands)
Year ended January 31, 2023
Deferred tax valuation allowance$115,839 $43,631 $— $159,470 
Year ended January 31, 2022
Deferred tax valuation allowance$74,870 $40,969 $— $115,839 
Year ended January 31, 2021
Deferred tax valuation allowance$37,847 $37,023 $— $74,870