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Fair Value Measurements (Tables)
6 Months Ended
Jul. 31, 2022
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation
The following table presents a roll forward of the fair value of the level 3 liabilities for the six months ended July 31, 2021:
 Warrant
Liability
Balance as of January 31, 2021
$11.8 
Issuance of common stock warrants0.5 
Changes in estimated fair value7.0 
Balance as of July 31, 2021
$19.3