PRESENTATION OF FINANCIAL INFORMATION - Earning Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
BASIC
Net income (loss)	$ 14,663	$ (4,293)	$ 59,237	$ (9,673)
Weighted-average common shares outstanding	94,462	93,095	94,122	92,664
Basic earnings (loss) per share (USD per share)	$ 0.16	$ (0.05)	$ 0.63	$ (0.10)
DILUTED
Net income (loss)	$ 14,663	$ (4,293)	$ 59,237	$ (9,673)
Weighted-average common shares outstanding	94,462	93,095	94,122	92,664
Dilutive effect of stock awards	1,909	0	1,492	0
Weighted-average common shares outstanding on a diluted basis	96,371	93,095	95,614	92,664
Diluted earnings per share (USD per share)	$ 0.15	$ (0.05)	$ 0.62	$ (0.10)