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Income Taxes (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Taxes [Line Items] |  |  |
Net change in total deferred tax asset valuation allowance | $ (19,500,000) | $ 6,400,000 | $ (11,500,000)
Cumulative undistributed earnings of foreign subsidiaries | 787,000,000 |  |
Chinese retroactive tax incentive | 0 | (1,227,000) | 0
Income tax incentives | 13,693,000 | 12,721,000 | 8,842,000
Unrecognized tax benefits including interest and penalties | 16,400,000 |  |
Interest on unrecognized tax | 1,700,000 |  |
Penalty on unrecognized tax | 1,600,000 |  |
Interest and penalties included in income tax expense | 100,000 |  |
Decrease in unrecognized tax benefits reserve due to expiration of statute of limitations | $ 1,653,000 |  |
Latest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforward expiration year | 2027 |  |
U.S. Federal [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating loss carryforwards | $ 53,500,000 |  |
Tax credit carryforward | $ 6,400,000 |  |
U.S. Federal [Member] | Earliest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating loss carryforwards expiration Year | 2022 |  |
U.S. Federal [Member] | Latest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating loss carryforwards expiration Year | 2031 |  |
Tax credit carryforward | $ 2,035 |  |
State and local [Member] |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforward | $ 1,700,000 |  |
State and local [Member] | Earliest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating loss carryforwards expiration Year | 2017 |  |
State and local [Member] | Latest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating loss carryforwards expiration Year | 2031 |  |
Tax credit carryforward expiration year | 2027 |  |
Foreign [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating loss carryforwards | $ 27,400,000 |  |
Foreign operating loss with indefinited carry forward period | $ 25,000,000 |  |
Foreign [Member] | Latest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating loss carryforwards expiration Year | 2025 |  |
China [Member] |  |  |
Income Taxes [Line Items] |  |  |
Income tax incentives | $ 5,347,000 | 2,800,000 | 0
Income tax holidays expiration date | 2015 |  |
Malaysia [Member} |  |  |
Income Taxes [Line Items] |  |  |
Income tax incentives | $ 2,075,000 | 2,299,000 | 1,559,000
Income tax holidays expiration date | 2016 |  |
Thailand [Member] |  |  |
Income Taxes [Line Items] |  |  |
Income tax incentives | $ 6,271,000 | $ 7,622,000 | $ 7,283,000
Income tax holidays expiration date | 2028 |  |
United States [Member] | State and local [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating loss carryforwards | $ 80,300,000 |  |

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