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Commitments and Contingencies (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Commitments and Contingencies [Abstract] |  |  |
Total rental expense under operating leases | $ 27,431 | $ 27,210 | $ 28,088
Future minimum lease payments for operating leases [Abstract] |  |  |
2017 | 24,851 |  |
2018 | 13,093 |  |
2019 | 8,284 |  |
2020 | 5,597 |  |
2021 | 4,182 |  |
Thereafter | 10,697 |  |
Environmental Matters |  |  |
Accrued environmental liabilities | 15,458 |  |
Accrued environmental liabilities, current | 8,623 |  |
Accrued environmental liabilities, noncurrent | 6,835 |  |
Estimated purchase commitments [Abstract] |  |  |
2017 | 37,010 |  |
2018 | 16,786 |  |
General Semiconductor [Member] |  |  |
Environmental Matters |  |  |
Accrued environmental liabilities | 7,783 |  |
Other Sites [Member] |  |  |
Environmental Matters |  |  |
Accrued environmental liabilities | $ 7,675 |  |

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