Earnings Per Share - Reconciliation of Amounts Utilized in Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015
Earnings Per Share [Abstract]
Net income	$ 29,009	$ 25,579	$ 29,295	$ 28,179	$ 19,093	$ 26,099	$ 16,787	$ 14,448	$ 112,062	$ 76,427	$ 94,332
Basic weighted average common shares outstanding (in shares)									33,612	33,374	33,618
Dilutive effect of share-based awards outstanding (in shares)									941	724	761
Diluted weighted average shares outstanding (in shares)									34,553	34,098	34,379
Earnings per share:
Basic (in dollars per share)	$ 0.86	$ 0.76	$ 0.87	$ 0.84	$ 0.57	$ 0.78	$ 0.50	$ 0.43	$ 3.33	$ 2.29	$ 2.81
Diluted (in dollars per share)	$ 0.84	$ 0.74	$ 0.84	$ 0.82	$ 0.56	$ 0.76	$ 0.50	$ 0.42	$ 3.24	$ 2.24	$ 2.74