Reclassifications Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 26, 2016	Jun. 28, 2015	Jun. 26, 2016	Jun. 28, 2015
Reclassifications out of accumulated other comprehensive income (loss)
Balance at the beginning of the period			$ 856,325
Balance at the end of the period	$ 863,188		863,188
Foreign Currency Translation Adjustments
Reclassifications out of accumulated other comprehensive income (loss)
Balance at the beginning of the period	(131,137)	$ (111,170)	(141,229)	$ (43,085)
Other comprehensive income (loss) before reclassifications	9,052	11,689	19,144	(56,396)
Net current-period other comprehensive income (loss)	9,052	11,689	19,144	(56,396)
Balance at the end of the period	(122,085)	(99,481)	(122,085)	(99,481)
Loss on Derivative Instruments
Reclassifications out of accumulated other comprehensive income (loss)
Balance at the beginning of the period	(1,429)	(1,450)	(1,942)	547
Other comprehensive income (loss) before reclassifications	(104)	1,186	1,423	358
Reclassification adjustment of prior derivative settlement, net of tax	(420)	(565)	(1,434)	(1,734)
Net current-period other comprehensive income (loss)	(524)	621	(11)	(1,376)
Balance at the end of the period	(1,953)	(829)	(1,953)	(829)
Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income (loss)
Balance at the beginning of the period	(132,566)	(112,620)	(143,171)	(42,538)
Other comprehensive income (loss) before reclassifications	8,948	12,875	20,567	(56,038)
Reclassification adjustment of prior derivative settlement, net of tax	(420)	(565)	(1,434)	(1,734)
Net current-period other comprehensive income (loss)	8,528	12,310	19,133	(57,772)
Balance at the end of the period	$ (124,038)	$ (100,310)	$ (124,038)	$ (100,310)