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
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Segment Reporting Information
Operating profit	$ 72,483	$ 84,128	$ 143,349	$ 174,801
Deductions from operating profit:
Interest expense	8,629	10,251	17,049	20,483
Equity-based compensation expense	2,127	890	4,629	3,271
Non-service pension expense	(4,901)	3,598	(3,981)	7,199
Corporate and other expenses, net	4,500	7,858	13,153	15,413
Earnings before income taxes	62,128	61,531	112,499	128,435
Aircraft Controls
Segment Reporting Information
Operating profit	22,018	34,701	49,940	73,293
Space And Defense Controls
Segment Reporting Information
Operating profit	26,652	24,652	49,698	49,934
Industrial Systems
Segment Reporting Information
Operating profit	$ 23,813	$ 24,775	$ 43,711	$ 51,574