Segments (Operating Profit By Segment and Reconciliation to Consolidated Amounts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018
Segment Reporting Information [Line Items]
Operating Income (Loss)	$ 216,362	$ 321,142	$ 262,351
Interest Expense	38,897	39,269	36,238
Share-based Payment Arrangement, Noncash Expense	5,661	6,464	5,804
Pension settlement	121,324	0	0
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component	15,231	19,552	8,436
Corporate Expenses And Other	29,832	28,905	29,694
Earnings before income taxes	5,417	226,952	182,179
Depreciation, Depletion and Amortization	86,972	85,260	88,572
Assets	3,225,831	3,114,237	2,964,048
Payments to Acquire Property, Plant, and Equipment	88,284	118,422	94,517
Aircraft Controls
Segment Reporting Information [Line Items]
Operating Income (Loss)	34,670	122,701	129,772
Depreciation, Depletion and Amortization	39,782	41,144	40,795
Assets	1,322,335	1,300,781	1,168,964
Payments to Acquire Property, Plant, and Equipment	47,954	68,595	46,705
Space and Defense Controls
Segment Reporting Information [Line Items]
Operating Income (Loss)	101,667	88,990	67,615
Depreciation, Depletion and Amortization	18,039	18,014	17,900
Assets	761,874	737,141	660,589
Payments to Acquire Property, Plant, and Equipment	22,505	23,903	22,452
Industrial Systems
Segment Reporting Information [Line Items]
Operating Income (Loss)	80,025	109,451	64,964
Depreciation, Depletion and Amortization	28,644	25,454	28,825
Assets	1,102,222	1,040,659	1,077,022
Payments to Acquire Property, Plant, and Equipment	17,700	25,808	25,156
Corporate
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	507	648	1,052
Assets	39,400	35,656	57,473
Payments to Acquire Property, Plant, and Equipment	$ 125	$ 116	$ 204