Stock Repurchase Activity (Details) - USD ($)	1 Months Ended			3 Months Ended		9 Months Ended
	Dec. 11, 2018	Nov. 29, 2018	Nov. 19, 2015	Nov. 03, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017	Feb. 03, 2018
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount		$ 300,000,000	$ 300,000,000	$ 300,000,000		$ 300,000,000
Stock Repurchase Program Expiration Date		Jan. 29, 2022	Feb. 02, 2019
Shares of common stock repurchased during the period (in shares)	4,854,316			395,450	1,200,470	772,051	2,231,213
Shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements (in shares)				0	170	18,765	24,369
Value of common stock repurchased during current period	$ 114,100,000			$ 7,600,000	$ 15,900,000	$ 16,500,000	$ 45,200,000
Value of tax withholding payments related to shares acquired from holders of restricted stock unit awards				$ 0	$ 2,100.0	$ 400,000	$ 700,000
Shares of common stock repurchased to date (in shares)				20,682,342		20,682,342		19,910,291
Value of common stock repurchased to date				$ 609,704,000		$ 609,704,000		$ 593,230,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 188,000,000			$ 188,000,000		$ 188,000,000