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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Oct. 03, 2015
Goodwill [Roll Forward] |  |  |  |
Balance at beginning of period | $ 144,359 | $ 43,132 |  |
Goodwill impairment loss | (5,380) |  |  |
Exchange rate effects | (735) | (1,950) |  |
Balance at end of period | 138,244 | 144,359 | $ 43,132 |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Indefinite-Lived Trade Names | 20,359 | 20,359 |  |
Intangible Assets Subject to Amortization | 270,179 | 357,307 |  |
Accumulated amortization | (187,280) | (191,053) |  |
Net Intangible Assets Subject to Amortization | 82,899 | 166,254 |  |
Intangible assets, net | 103,258 | 186,613 |  |
Amortization expense (excluding capitalized software) | 21,829 | 18,651 | 15,068 |
Finite Lived Intangible Assets Future Amortization Expense [Abstract] |  |  |  |
2016 | 15,267 |  |  |
2017 | 13,113 |  |  |
2018 | 9,139 |  |  |
2019 | 5,322 |  |  |
2020 | 4,932 |  |  |
Capella Microsystems (Taiwan) Inc. [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill acquired during period |  | 96,849 |  |
Impairment of Long-Lived Assets Held-for-use | 57,600 |  |  |
Holy Stone Polytech [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill acquired during period |  | 6,328 |  |
Other intangible assets related to acquisitions |  | 3,736 |  |
Resistors And Inductors Segment [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Balance at beginning of period | 42,146 | 43,132 |  |
Goodwill impairment loss | 0 |  |  |
Exchange rate effects | (751) | (986) |  |
Balance at end of period | 41,395 | 42,146 | 43,132 |
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount |  |  |  | 200.00%
Resistors And Inductors Segment [Member] | Capella Microsystems (Taiwan) Inc. [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill acquired during period |  | 0 |  |
Resistors And Inductors Segment [Member] | Holy Stone Polytech [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill acquired during period |  | 0 |  |
Capacitors Segment [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Balance at beginning of period | 5,364 | 0 |  |
Goodwill impairment loss | (5,380) |  |  |
Exchange rate effects | 16 | (964) |  |
Balance at end of period | 0 | 5,364 | 0 |
Capacitors Segment [Member] | Capella Microsystems (Taiwan) Inc. [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill acquired during period |  | 0 |  |
Capacitors Segment [Member] | Holy Stone Polytech [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill acquired during period |  | 6,328 |  |
Optoelectronic Components Segment [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Balance at beginning of period | 96,849 | 0 |  |
Goodwill impairment loss | 0 |  |  |
Exchange rate effects | 0 | 0 |  |
Balance at end of period | 96,849 | 96,849 | $ 0 |
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount |  |  |  | 130.00%
Optoelectronic Components Segment [Member] | Capella Microsystems (Taiwan) Inc. [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill acquired during period |  | 96,849 |  |
Optoelectronic Components Segment [Member] | Holy Stone Polytech [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill acquired during period |  | 0 |  |
Patents and Acquired Technology [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible Assets Subject to Amortization | 93,606 | 108,190 |  |
Accumulated amortization | (76,258) | (71,700) |  |
Capitalized Software [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible Assets Subject to Amortization | 53,401 | 53,369 |  |
Accumulated amortization | (47,394) | (45,979) |  |
Customer Relationships [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible Assets Subject to Amortization | 85,418 | 153,853 |  |
Accumulated amortization | (37,989) | (50,630) |  |
Tradenames [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible Assets Subject to Amortization | 35,493 | 39,612 |  |
Accumulated amortization | (23,798) | (21,384) |  |
Non-competition Agreements [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible Assets Subject to Amortization | 2,261 | 2,283 |  |
Accumulated amortization | $ (1,841) | $ (1,360) |  |

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