EARNINGS PER SHARE (Reconciliation of the shares used in the basic and diluted net income per share computation) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended																12 Months Ended
	Oct. 01, 2016		Jul. 02, 2016		Apr. 02, 2016		Jan. 02, 2016		Oct. 03, 2015		Jun. 27, 2015		Mar. 28, 2015		Dec. 27, 2014		Oct. 01, 2016		Oct. 03, 2015		Sep. 27, 2014
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount																			0
NUMERATOR:
Net income	$ 10,329		$ 31,785		$ 5,089		$ (91)		$ 9,827		$ 25,039		$ 7,931		$ 7,842		$ 47,112		$ 50,639		$ 62,988
Less: income applicable to participating securities																	0		0		0
Net income applicable to common shareholders - Basic																	47,112		50,639		62,988
Net income applicable to common shareholders - Diluted																	$ 47,112		$ 50,639		$ 62,988
DENOMINATOR:
Weighted average shares outstanding - Basic (in shares)	70,404,000		70,379,000		70,389,000		70,738,000		72,731,000		75,420,000		76,821,000		76,888,000		70,477,000		75,414,000		76,396,000
Stock options (in shares)																	32,000		70,000		117,000
Time-based restricted stock (in shares)																	274,000		175,000		398,000
Market-based restricted stock (in shares)																	58,000		0		381,000
Weighted average shares outstanding - Diluted (1)	71,017,000		70,843,000		70,634,000		70,738,000		72,883,000		75,891,000		77,570,000		77,432,000		70,841,000		75,659,000		77,292,000
EPS:
Net income per share - Basic (in dollars per share)	$ 0.15	[1]	$ 0.45	[1]	$ 0.07	[1]	$ 0.00	[1]	$ 0.14	[1]	$ 0.33	[1]	$ 0.10	[1]	$ 0.10	[1]	$ 0.67	[1]	$ 0.67	[1]	$ 0.82
Effect of dilutive shares (in dollars per share)																	0.00		0.00		(0.01)
Net income per share - Diluted (in dollars per share)	$ 0.15	[1]	$ 0.45	[1]	$ 0.07	[1]	$ 0.00	[1]	$ 0.13	[1]	$ 0.33	[1]	$ 0.10	[1]	$ 0.10	[1]	$ 0.67	[1]	$ 0.67	[1]	$ 0.81

[1] EPS for the year may not equal the sum of quarterly EPS due to changes in weighted share calculations.