Segments (Segment Information And Reconciliations To Consolidated Amounts) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Segment Reporting Information [Line Items]
Net sales	$ 671,424	$ 683,698	$ 649,878	$ 643,385	$ 675,853	$ 670,632	$ 643,023	$ 620,803	$ 2,648,385	$ 2,610,311	$ 2,469,536
Total operating profit									275,717	227,544	273,425
Operating profit (loss) and margins									10.40%	8.70%	11.10%
Interest									12,513	26,962	34,312
Equity-based compensation expense									7,189	6,620	6,226
Corporate expenses and other									37,092	28,956	24,046
Earnings before income taxes									218,923	165,006	208,841
Depreciation and amortization									109,259	108,073	100,816
Identifiable assets	3,208,452				3,237,095				3,208,452	3,237,095	3,105,907
Capital expenditures									78,771	93,174	107,030
Aircraft Controls [Member]
Segment Reporting Information [Line Items]
Net sales									1,117,656	1,059,587	963,421
Total operating profit									115,726	126,751	104,582
Operating profit (loss) and margins									10.40%	12.00%	10.90%
Depreciation and amortization									49,021	45,547	42,774
Identifiable assets	1,257,099				1,268,753				1,257,099	1,268,753	1,194,742
Capital expenditures									45,243	49,859	67,507
Space And Defense Controls [Member]
Segment Reporting Information [Line Items]
Net sales									394,505	395,945	358,755
Total operating profit									26,119	25,350	42,854
Operating profit (loss) and margins									6.60%	6.40%	11.90%
Depreciation and amortization									15,735	15,470	11,996
Identifiable assets	480,806				514,260				480,806	514,260	423,838
Capital expenditures									8,992	14,401	10,270
Industrial Systems [Member]
Segment Reporting Information [Line Items]
Net sales									590,971	592,112	633,713
Total operating profit									58,108	42,254	63,243
Operating profit (loss) and margins									9.80%	7.10%	10.00%
Depreciation and amortization									23,170	22,703	23,408
Identifiable assets	648,580				675,115				648,580	675,115	691,636
Capital expenditures									12,459	14,230	16,525
Components [Member]
Segment Reporting Information [Line Items]
Net sales									425,129	415,428	374,081
Total operating profit									65,150	68,731	57,303
Operating profit (loss) and margins									15.30%	16.50%	15.30%
Depreciation and amortization									12,540	11,735	9,123
Identifiable assets	492,038				486,421				492,038	486,421	457,254
Capital expenditures									9,018	8,166	7,071
Medical Devices [Member]
Segment Reporting Information [Line Items]
Net sales									120,124	147,239	139,566
Total operating profit									10,614	(35,542)	5,443
Operating profit (loss) and margins									8.80%	(24.10%)	3.90%
Depreciation and amortization									6,927	10,269	11,101
Identifiable assets	165,289				189,669				165,289	189,669	234,431
Capital expenditures									2,798	3,659	2,398
Corporate [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization									1,866	2,349	2,414
Identifiable assets	164,640				102,877				164,640	102,877	104,006
Capital expenditures									$ 261	$ 2,859	$ 3,259