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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, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 1,010,800 | $ 945,144 | $ 931,558 | $ 902,423 | $ 943,640 | $ 883,933 | $ 889,541 | $ 865,281 | $ 3,789,925 | $ 3,582,395 | $ 3,549,494
Long Lived Assets | 167,016 |  |  |  | 155,482 |  |  |  | $ 167,016 | 155,482 | 165,636
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Export sales [Abstract] |  |  |  |  |  |  |  |  |  |  |
Export sales from the United States |  |  |  |  |  |  |  |  | 5.00% |  |
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long Lived Assets | 145,996 |  |  |  | 133,522 |  |  |  | $ 145,996 | 133,522 | 134,855
Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Export sales [Abstract] |  |  |  |  |  |  |  |  |  |  |
Export sales from the United States |  |  |  |  |  |  |  |  | 16.00% |  |
Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Export sales [Abstract] |  |  |  |  |  |  |  |  |  |  |
Export sales from the United States |  |  |  |  |  |  |  |  | 19.00% |  |
Non US Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long Lived Assets | 21,020 |  |  |  | 21,960 |  |  |  | $ 21,020 | 21,960 | 30,781
Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long Lived Assets | $ 0 |  |  |  | $ 0 |  |  |  | $ 0 | 0 | 0
Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Export sales [Abstract] |  |  |  |  |  |  |  |  |  |  |
Export sales from the United States |  |  |  |  |  |  |  |  | 37.00% |  |
Middle East [Member] |  |  |  |  |  |  |  |  |  |  |
Export sales [Abstract] |  |  |  |  |  |  |  |  |  |  |
Export sales from the United States |  |  |  |  |  |  |  |  | 16.00% |  |
Other Geographical Area [Member] |  |  |  |  |  |  |  |  |  |  |
Export sales [Abstract] |  |  |  |  |  |  |  |  |  |  |
Export sales from the United States |  |  |  |  |  |  |  |  | 12.00% |  |
Reportable Geographical Components [Member] | Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 157,607 | 158,952 | 209,237
Reportable Geographical Components [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 507,992 | 452,238 | 518,893
Reportable Geographical Components [Member] | Non US Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,174,979 | 1,162,058 | 1,281,881
Reportable Geographical Components [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 302,687 | 315,656 | 320,326
Reportable Geographical Components [Member] | Middle East [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 101,200 | 124,489 | 91,050
Reportable Geographical Components [Member] | Rest of the World [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 105,493 | 110,723 | 142,375
Reportable Geographical Components [Member] | Medical and Scientific Imaging [Member] | Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 21,993 | 23,737 | 24,997
Reportable Geographical Components [Member] | Medical and Scientific Imaging [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 228,058 | 167,698 | 185,263
Reportable Geographical Components [Member] | Medical and Scientific Imaging [Member] | Non US Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 393,550 | 340,461 | 356,674
Reportable Geographical Components [Member] | Medical and Scientific Imaging [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 111,843 | 112,732 | 107,695
Reportable Geographical Components [Member] | Medical and Scientific Imaging [Member] | Middle East [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 10,107 | 15,877 | 9,997
Reportable Geographical Components [Member] | Medical and Scientific Imaging [Member] | Rest of the World [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 21,549 | 20,417 | 28,722
Reportable Geographical Components [Member] | RF Technology [Member] | Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 52,703 | 45,506 | 45,811
Reportable Geographical Components [Member] | RF Technology [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 71,673 | 57,581 | 54,330
Reportable Geographical Components [Member] | RF Technology [Member] | Non US Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 204,036 | 178,032 | 151,270
Reportable Geographical Components [Member] | RF Technology [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 11,988 | 10,019 | 7,555
Reportable Geographical Components [Member] | RF Technology [Member] | Middle East [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 50,605 | 54,165 | 34,241
Reportable Geographical Components [Member] | RF Technology [Member] | Rest of the World [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 17,067 | 10,761 | 9,333
Reportable Geographical Components [Member] | Industrial Technology [Member] | Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 60,551 | 65,826 | 106,598
Reportable Geographical Components [Member] | Industrial Technology [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 89,229 | 97,938 | 121,909
Reportable Geographical Components [Member] | Industrial Technology [Member] | Non US Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 225,539 | 253,272 | 320,017
Reportable Geographical Components [Member] | Industrial Technology [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 52,087 | 60,817 | 61,552
Reportable Geographical Components [Member] | Industrial Technology [Member] | Middle East [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 2,997 | 4,220 | 3,824
Reportable Geographical Components [Member] | Industrial Technology [Member] | Rest of the World [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 20,675 | 24,471 | 26,134
Reportable Geographical Components [Member] | Energy Systems And Controls [Member] | Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 22,360 | 23,883 | 31,831
Reportable Geographical Components [Member] | Energy Systems And Controls [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 119,032 | 129,021 | 157,391
Reportable Geographical Components [Member] | Energy Systems And Controls [Member] | Non US Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 351,854 | 390,293 | 453,920
Reportable Geographical Components [Member] | Energy Systems And Controls [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 126,769 | 132,088 | 143,524
Reportable Geographical Components [Member] | Energy Systems And Controls [Member] | Middle East [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 37,491 | 50,227 | 42,988
Reportable Geographical Components [Member] | Energy Systems And Controls [Member] | Rest of the World [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 46,202 | 55,074 | 78,186
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Sales [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 3,789,925 | 3,582,395 | 3,549,494
Sales [Member] | United States [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 3,115,772 | 2,965,115 | 2,820,519
Sales [Member] | Non US Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 920,799 | 871,649 | 1,007,199
Sales [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | (246,646) | (254,369) | (278,224)
Sales [Member] | Unaffiliated Customers [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 3,789,925 | 3,582,395 | 3,549,494
Sales [Member] | Unaffiliated Customers [Member] | United States [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 2,978,496 | 2,829,752 | 2,661,470
Sales [Member] | Unaffiliated Customers [Member] | Non US Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 811,429 | 752,643 | 888,024
Sales [Member] | Unaffiliated Customers [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Sales [Member] | Between Geographical Areas [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Sales [Member] | Between Geographical Areas [Member] | United States [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 137,276 | 135,363 | 159,049
Sales [Member] | Between Geographical Areas [Member] | Non US Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 109,370 | 119,006 | 119,175
Sales [Member] | Between Geographical Areas [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | (246,646) | (254,369) | (278,224)
Sales [Member] | Geographic Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Entity Wide Information About Geographic Areas [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 460,000 | $ 481,000 | $ 477,000

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