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Segment Information (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
	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018
Segment Reporting Information
Operating profit	$ 77,854	$ 45,407	$ 157,231	$ 112,834
Deductions from operating profit:
Interest expense	9,939	9,089	19,621	17,735
Equity-based compensation expense	1,683	1,499	3,691	3,500
Non-service pension expense	3,187	1,707	6,380	3,400
Corporate and other expenses, net	7,427	7,443	13,737	14,696
Earnings before income taxes	55,618	25,669	113,802	73,503
Aircraft Controls
Segment Reporting Information
Operating profit	27,122	33,793	60,321	64,836
Space And Defense Controls
Segment Reporting Information
Operating profit	20,504	17,042	38,977	33,515
Industrial Systems
Segment Reporting Information
Operating profit	$ 30,228	$ (5,428)	$ 57,933	$ 14,483

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