SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Employee market-based restricted stock activity) (Details) - Market-based restricted stock [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of shares, Restricted stock outstanding, beginning balance (in shares)	578	1,068	1,085
Number of shares, Granted (in shares)	172	232	335
Number of shares, Forfeited or expired (in shares)	(256)	(48)	(19)
Number of shares, Vested (in shares)	(10)	(674)	(333)
Number of shares, Restricted stock outstanding, ending balance (in shares)	484	578	1,068	1,085
Unrecognized compensation expense	$ 2,924	$ 4,465	$ 5,271	$ 5,913
Average remaining service period (in years)	1 year	1 year 5 months	1 year	1 year 1 month
Weighted average grant date fair value per share	$ 12.26	$ 16.83	$ 13.46