REVISION OF PREVIOUSLY REPORTED INCOME TAXES AND DEFERRED TAX LIABILITIES (Details) - USD ($) $ in Thousands	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred income taxes	$ 27,697	$ 33,958
TOTAL LIABILITIES	175,926	135,217
Retained earnings	449,975	402,863	$ 352,224	$ 289,236
TOTAL SHAREHOLDERS' EQUITY	$ 806,518	769,249	786,600	714,023
Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred income taxes		31,316
TOTAL LIABILITIES		132,575
Retained earnings		405,505	354,866	291,878
TOTAL SHAREHOLDERS' EQUITY		771,891
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred income taxes		2,642
TOTAL LIABILITIES		2,642
Retained earnings		(2,642)	$ (2,642)	$ (2,642)
TOTAL SHAREHOLDERS' EQUITY		$ (2,642)