Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 04, 2015	Mar. 29, 2014	Apr. 04, 2015	Mar. 29, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 5,392	$ 43,756	$ 35,676	$ 83,413
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax of $0 for each period	(22,464)	(2,487)	(42,896)	(850)
Amortization of net actuarial pension loss included in net income, net of tax of $0.1 million and $0.3 million in the second quarter of 2015 and 2014, respectively, and $0.3 million and $0.6 million in the first six months of 2015 and 2014, respectively	1,026	525	2,078	1,048
Change in unamortized pension loss during the period related to changes in foreign currency	2,183	(3)	3,104	(206)
Total other comprehensive loss	(19,255)	(1,965)	(37,714)	(8)
Comprehensive income (loss)	$ (13,863)	$ 41,791	$ (2,038)	$ 83,405