Segments (Segment Information And Reconciliations To Consolidated Amounts) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Segment Reporting Information
Net sales	$ 623,224	$ 634,539	$ 637,246	$ 630,523	$ 671,424	$ 683,698	$ 649,878	$ 643,385	$ 2,525,532	$ 2,648,385	$ 2,610,311
Total operating profit									245,513	275,717	227,544
Interest									28,967	12,513	26,962
Equity-based compensation expense									5,074	7,189	6,620
Corporate expenses and other									27,638	37,092	28,956
Earnings before income taxes									183,834	218,923	165,006
Depreciation and amortization									103,609	109,259	108,073
Identifiable assets	3,086,471				3,208,452				3,086,471	3,208,452	3,237,095
Capital expenditures									80,693	78,771	93,174
Aircraft Controls
Segment Reporting Information
Net sales									1,086,547	1,117,656	1,059,587
Total operating profit									100,006	115,726	126,751
Depreciation and amortization									51,385	49,021	45,547
Identifiable assets	1,220,814				1,257,099				1,220,814	1,257,099	1,268,753
Capital expenditures									47,389	45,243	49,859
Space And Defense Controls
Segment Reporting Information
Net sales									381,444	394,505	395,945
Total operating profit									33,236	26,119	25,350
Depreciation and amortization									14,054	15,735	15,470
Identifiable assets	440,439				480,806				440,439	480,806	514,260
Capital expenditures									9,022	8,992	14,401
Industrial Systems
Segment Reporting Information
Net sales									521,505	590,971	592,112
Total operating profit									45,021	58,108	42,254
Depreciation and amortization									20,731	23,170	22,703
Identifiable assets	591,367				648,580				591,367	648,580	675,115
Capital expenditures									15,371	12,459	14,230
Components
Segment Reporting Information
Net sales									437,468	449,891	438,572
Total operating profit									58,693	72,768	74,425
Depreciation and amortization									11,438	13,638	12,833
Identifiable assets	484,036				520,211				484,036	520,211	515,243
Capital expenditures									7,016	9,018	8,166
Medical Devices
Segment Reporting Information
Net sales									98,568	95,362	124,095
Total operating profit									8,557	2,996	(41,236)
Depreciation and amortization									5,138	5,829	9,171
Identifiable assets	123,400				137,116				123,400	137,116	160,847
Capital expenditures									1,355	2,798	3,659
Corporate
Segment Reporting Information
Depreciation and amortization									863	1,866	2,349
Identifiable assets	$ 226,415				$ 164,640				226,415	164,640	102,877
Capital expenditures									$ 540	$ 261	$ 2,859