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Intangible Assets - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2021
Oct. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization of intangible assets $ 800,000 $ 0 $ 2,400,000 $ 0