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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Jan. 31, 2021
Jan. 31, 2020
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ (5,362) $ (2,982)
Preferred stock, par value (in usd per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in usd per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 500,000,000 500,000,000
Common stock, shares outstanding (in shares) 192,807,000 181,254,000
Treasury stock, shares (in shares) 5,000 0