Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	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