Segment Information (Sales And Operating Profit By Segment And Reconciliation Of Segment Operating Profit To Earnings Before Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 02, 2016	Apr. 04, 2015	Apr. 02, 2016	Apr. 04, 2015
Revenue, Net [Abstract]
Net sales	$ 611,142	$ 637,246	$ 1,179,599	$ 1,267,769
Gross Profit [Abstract]
Total operating profit	56,608	56,546	108,167	122,247
Deductions from operating profit [Abstract]
Interest expense	8,935	7,669	17,257	13,037
Equity-based compensation expense	983	568	1,919	3,966
Corporate expenses and other, net	6,073	6,911	12,719	14,408
Earnings before income taxes	40,617	41,398	76,272	90,836
Aircraft Controls
Revenue, Net [Abstract]
Net sales	275,769	274,396	530,604	540,764
Gross Profit [Abstract]
Total operating profit	19,042	22,336	37,173	46,794
Space And Defense Controls
Revenue, Net [Abstract]
Net sales	89,175	93,256	171,815	193,211
Gross Profit [Abstract]
Total operating profit	13,357	4,909	25,173	13,635
Industrial Systems
Revenue, Net [Abstract]
Net sales	128,244	129,145	253,423	262,511
Gross Profit [Abstract]
Total operating profit	13,270	12,685	26,903	25,904
Components
Revenue, Net [Abstract]
Net sales	93,813	115,062	173,388	222,766
Gross Profit [Abstract]
Total operating profit	8,385	15,900	13,085	32,862
Medical Devices
Revenue, Net [Abstract]
Net sales	24,141	25,387	50,369	48,517
Gross Profit [Abstract]
Total operating profit	$ 2,554	$ 716	$ 5,833	$ 3,052