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Segment and Geographic Area Information, Sales by Country of Origin (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Net sales	$ 943,640	$ 883,933	$ 889,541	$ 865,281	$ 946,145	$ 884,122	$ 885,175	$ 834,052	$ 3,582,395	$ 3,549,494	$ 3,238,128
Long Lived Assets	155,482				165,636				155,482	165,636	171,423
Export sales [Abstract]
Export sales from the United States									$ 481,000	477,000	479,000
Geographic Areas, Revenues from External Customers [Abstract]
Minimum percent of total sales generated in Canada									5.00%
Sales to Customers Outside the US									$ 1,162,058	1,281,881	1,252,772
Sales [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Sales to unaffiliated customers									3,582,395	3,549,494	3,238,128
Sales between geographic areas									0	0	0
Net sales									3,582,395	3,549,494	3,238,128
United States [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Long Lived Assets	133,522				134,855				133,522	134,855	135,157
United States [Member] | Sales [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Sales to unaffiliated customers									2,829,752	2,661,470	2,400,592
Sales between geographic areas									135,363	159,049	141,529
Net sales									$ 2,965,115	2,820,519	2,542,121
Canada [Member]
Export sales [Abstract]
Export sales from the United States (in hundredths)									15.00%
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									$ 158,952	209,237	215,077
Europe [Member]
Export sales [Abstract]
Export sales from the United States (in hundredths)									17.00%
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									$ 452,238	518,893	493,670
Non US Operations [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Long Lived Assets	21,960				30,781				21,960	30,781	36,266
Non US Operations [Member] | Sales [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Sales to unaffiliated customers									752,643	888,024	837,536
Sales between geographic areas									119,006	119,175	121,431
Net sales									871,649	1,007,199	958,967
Eliminations [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Long Lived Assets	$ 0				$ 0				0	0	0
Eliminations [Member] | Sales [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Sales to unaffiliated customers									0	0	0
Sales between geographic areas									(254,369)	(278,224)	(262,960)
Net sales									$ (254,369)	(278,224)	(262,960)
Asia [Member]
Export sales [Abstract]
Export sales from the United States (in hundredths)									36.00%
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									$ 315,656	320,326	314,621
Middle East [Member]
Export sales [Abstract]
Export sales from the United States (in hundredths)									18.00%
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									$ 124,489	91,050	90,011
Rest of the World [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									$ 110,723	142,375	139,393
South Pacific [Member]
Export sales [Abstract]
Export sales from the United States (in hundredths)									3.00%
South America [Member]
Export sales [Abstract]
Export sales from the United States (in hundredths)									5.00%
Other Geographical Area [Member]
Export sales [Abstract]
Export sales from the United States (in hundredths)									6.00%
Medical and Scientific Imaging [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Net sales									$ 1,215,318	1,080,309	902,281
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									340,461	356,674	325,044
Medical and Scientific Imaging [Member] | Canada [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									23,737	24,997	25,502
Medical and Scientific Imaging [Member] | Europe [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									167,698	185,263	168,394
Medical and Scientific Imaging [Member] | Asia [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									112,732	107,695	103,931
Medical and Scientific Imaging [Member] | Middle East [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									15,877	9,997	9,361
Medical and Scientific Imaging [Member] | Rest of the World [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									20,417	28,722	17,856
RF Technology [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Net sales									1,033,951	950,227	904,363
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									178,032	151,270	173,119
RF Technology [Member] | Canada [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									45,506	45,811	45,954
RF Technology [Member] | Europe [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									57,581	54,330	62,825
RF Technology [Member] | Asia [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									10,019	7,555	8,134
RF Technology [Member] | Middle East [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									54,165	34,241	44,341
RF Technology [Member] | Rest of the World [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									10,761	9,333	11,865
Industrial Technology [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Net sales									745,381	827,145	779,564
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									253,272	320,017	314,208
Industrial Technology [Member] | Canada [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									65,826	106,598	109,361
Industrial Technology [Member] | Europe [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									97,938	121,909	108,644
Industrial Technology [Member] | Asia [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									60,817	61,552	65,622
Industrial Technology [Member] | Middle East [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									4,220	3,824	3,865
Industrial Technology [Member] | Rest of the World [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									24,471	26,134	26,716
Energy Systems And Controls [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Net sales									587,745	691,813	651,920
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									390,293	453,920	440,401
Energy Systems And Controls [Member] | Canada [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									23,883	31,831	34,260
Energy Systems And Controls [Member] | Europe [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									129,021	157,391	153,807
Energy Systems And Controls [Member] | Asia [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									132,088	143,524	136,934
Energy Systems And Controls [Member] | Middle East [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									50,227	42,988	32,444
Energy Systems And Controls [Member] | Rest of the World [Member]
Geographic Areas, Revenues from External Customers [Abstract]
Sales to Customers Outside the US									55,074	78,186	82,956
Corporate [Member]
Schedule of Entity Wide Information About Geographic Areas [Line Items]
Net sales									$ 0	$ 0	$ 0

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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