Benefit Plans - Schedule of Restricted Stock Unit and Stock Awards Activity (Details) - PSUs and RSUs - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015
Number of Shares
Units outstanding at beginning of period (in shares)	1,022	796	730
Granted (in shares)	397	499	325
Canceled (in shares)	(22)	(29)	(43)
Vested (in shares)	(329)	(244)	(216)
Units outstanding at end of period (in shares)	1,068	1,022	796
Weighted Average Fair Value at Date of Grant
Units outstanding at beginning of period (in dollars per share)	$ 41.49	$ 38.18	$ 31.97
Granted (in dollars per share)	54.21	39.68	41.46
Canceled (in dollars per share)	41.17	36.84	35.15
Vested (in dollars per share)	43.76	27.77	37.52
Units outstanding at end of period (in dollars per share)	$ 45.97	$ 41.49	$ 38.18
Aggregate Intrinsic Value
Units outstanding at end of period	$ 59,905