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Balance Sheet Components - Additional Information (Details) - USD ($)
3 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Supplemental Balance Sheet Disclosures [Abstract]    
Depreciation and amortization expense $ 906,000 $ 435,000
Amortization of deferred contract acquisition costs 9,138,000 $ 4,597,000
Impairment losses for deferred contract acquisition costs $ 0