Net Income Per Share (Anti-Dilutive Shares Excluded From Net Income) (Details) - Class A Common Stock - shares shares in Thousands	3 Months Ended
	May 01, 2020	May 03, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities, amount (in shares)	6,717	81
Employee stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities, amount (in shares)	550	0
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities, amount (in shares)	6,167	81
Employee stock purchase plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities, amount (in shares)		0