Share-Based Plans Share-Based Plans - Options (Details) - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Apr. 29, 2017	Jan. 28, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding stock options, beginning balance	589,675
Exercised	(104,987)
Forfeited	(5,000)
Outstanding stock options, ending balance	479,688	589,675
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options, Vested and Expected to Vest, Outstanding, Number	479,688
Options, Exercisable, Number	425,999
Options, Outstanding, Weighted Average Exercise Price	$ 39.18	$ 38.75
Options, Exercises in Period, Weighted Average Exercise Price	36.88
Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	36.93
Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price	39.18
Options, Exercisable, Weighted Average Exercise Price	$ 39.55
Options, Outstanding, Weighted Average Remaining Contractual Term	2 years 2 months 21 days
Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	2 years 2 months 21 days
Options, Exercisable, Weighted Average Remaining Contractual Term	2 years 1 month 2 days
Options, Outstanding, Intrinsic Value	$ 5,424
Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	5,424
Options, Exercisable, Intrinsic Value	$ 4,660
Award Requisite Service Period	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Term	7 years