Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Commitments and Contingencies [Abstract]
Total rental expense under operating leases	$ 27,210	$ 28,088	$ 29,327
Future minimum lease payments for operating leases [Abstract]
2016	24,216
2017	17,429
2018	7,372
2019	4,068
2020	2,698
Thereafter	7,224
Environmental Matters
Accrued environmental liabilities	16,934
Accrued environmental liabilities, current	8,459
Accrued environmental liabilities, noncurrent	8,475
Executive Employment Agreements
Executive compensation credit	0	$ 0	$ (1,778)
General Semiconductor [Member]
Environmental Matters
Accrued environmental liabilities	9,669
Other Sites [Member]
Environmental Matters
Accrued environmental liabilities	7,265
Minimum [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Range of typical unrecorded purchase commitments	30,000
Maximum [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Range of typical unrecorded purchase commitments	$ 40,000