CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Apr. 30, 2021	Jan. 31, 2021
Accounts receivable, allowances	$ 33,664	$ 36,844
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	200,000,000	200,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Class A Common Stock
Common stock, shares authorized (in shares)	2,000,000,000	2,000,000,000
Common stock, shares issued (in shares)	236,487,446	215,737,924
Common stock, shares outstanding (in shares)	236,487,446	215,737,924
Class B Common Stock
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	58,024,499	77,811,299
Common stock, shares outstanding (in shares)	58,024,499	77,811,299