Segments (Sales, Based On The Customer's Location, And Property, Plant And Equipment By Geographic Area) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015
Segment Reporting Information
Net sales	$ 649,268	$ 626,183	$ 632,403	$ 589,670	$ 619,078	$ 613,260	$ 611,142	$ 568,457	$ 2,497,524	$ 2,411,937	$ 2,525,532
Property, plant and equipment, net	522,991				522,369				522,991	522,369	536,756
UNITED STATES
Segment Reporting Information
Net sales									1,438,428	1,353,398	1,413,877
Property, plant and equipment, net	303,925				302,446				303,925	302,446	307,874
GERMANY
Segment Reporting Information
Net sales									195,328	173,182	199,351
JAPAN
Segment Reporting Information
Net sales									152,148	164,702	156,999
FRANCE
Segment Reporting Information
Net sales									145,627	120,907	84,733
PHILIPPINES
Segment Reporting Information
Property, plant and equipment, net	64,260				65,000				64,260	65,000	68,101
UNITED KINGDOM
Segment Reporting Information
Property, plant and equipment, net	64,065				64,280				64,065	64,280	77,949
OTHER
Segment Reporting Information
Net sales									565,993	599,748	670,572
Property, plant and equipment, net	$ 90,741				$ 90,643				$ 90,741	$ 90,643	$ 82,832