Changes in Accumulated Other Comprehensive Income by Component Changes in AOCI by Component (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning	$ (16,043)		$ (28,500)		$ (32,057)
Other comprehensive income before reclassifications	(5,139)		(1,306)
Amounts reclassified from accumulated other comprehensive income	1,679		10,303
Net current-period other comprehensive income	(3,460)	(797)	8,997	(3,049)	12,554	(3,069)
Balance, ending	(19,503)	(32,057)	(19,503)	(32,057)	(19,503)	(32,057)
Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning	(15,185)		(25,749)		(27,686)
Other comprehensive income before reclassifications	(4,440)		(2,500)		(416)
Amounts reclassified from accumulated other comprehensive income	1,679		10,303		10,156
Net current-period other comprehensive income	(2,761)		7,803		9,740
Balance, ending	(17,946)		(17,946)		(17,946)
Foreign Currency Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning	(858)		(2,751)		(4,371)
Other comprehensive income before reclassifications	(699)		1,194		2,814
Amounts reclassified from accumulated other comprehensive income	0		0		0
Net current-period other comprehensive income	(699)		1,194		2,814
Balance, ending	$ (1,557)		$ (1,557)		$ (1,557)