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		9 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Net sales:
Net sales	$ 692,018	$ 626,183	$ 2,008,602	$ 1,848,256
Operating profit:
Operating profit	74,138	63,595	184,712	180,784
Deductions from operating profit:
Interest expense	8,850	8,654	26,585	25,789
Equity-based compensation expense	894	997	4,394	4,151
Corporate expenses and other, net	9,439	5,671	25,275	17,880
Earnings before income taxes	54,955	48,273	128,458	132,964
Aircraft Controls
Net sales:
Net sales	299,605	282,555	889,578	840,666
Operating profit:
Operating profit	33,342	29,080	97,590	83,372
Space And Defense Controls
Net sales:
Net sales	149,815	128,049	426,735	389,473
Operating profit:
Operating profit	16,513	12,789	49,643	33,258
Industrial Systems
Net sales:
Net sales	242,598	215,579	692,289	618,117
Operating profit:
Operating profit	$ 24,283	$ 21,726	$ 37,479	$ 64,154