Stock Repurchase Activity (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Nov. 19, 2015	May 05, 2018	Apr. 29, 2017	Feb. 03, 2018
Equity, Class of Treasury Stock [Line Items]
Amount authorized under stock repurchase program	$ 300,000	$ 300,000
Stock Repurchase Program Expiration Date	Feb. 02, 2019
Shares of common stock repurchased during the period (in shares)		40,299	748,134
Shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements (in shares)		18,765	23,690
Value of common stock repurchased during current period		$ 900	$ 22,300
Value of tax withholding payments related to shares acquired from holders of restricted stock unit awards		$ 400	$ 700
Shares of common stock repurchased to date (in shares)		19,950,590		19,910,291
Value of common stock repurchased to date		$ 594,101		$ 593,230
Value of shares of common stock remaining available for repurchase under the program		$ 203,600