Stock Repurchase and Dividends - Schedule of Dividends Declared and Paid (Details) - USD ($) $ / shares in Units, $ in Thousands									12 Months Ended
Aug. 31, 2018	Jun. 01, 2018	Mar. 02, 2018	Dec. 15, 2017	Sep. 01, 2017	Jun. 02, 2017	Mar. 03, 2017	Dec. 14, 2016	Sep. 30, 2018	Oct. 01, 2017	Oct. 02, 2016
Stock Repurchase And Dividends [Abstract]
Dividends Paid Per Share (in dollars per share)	$ 0.12	$ 0.12	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.09	$ 0.09	$ 0.44	$ 0.38	$ 0.34
Dividends Paid	$ 6,641	$ 6,664	$ 5,583	$ 5,589	$ 5,633	$ 5,738	$ 5,157	$ 5,144	$ 24,477	$ 21,672

Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

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