Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current income taxes:
Domestic	$ 14,487	$ 4,325	$ 7,825
Foreign	3,457us-gaap_CurrentForeignTaxExpenseBenefit	2,205us-gaap_CurrentForeignTaxExpenseBenefit	3,615us-gaap_CurrentForeignTaxExpenseBenefit
Total current	17,944us-gaap_CurrentIncomeTaxExpenseBenefit	6,530us-gaap_CurrentIncomeTaxExpenseBenefit	11,440us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred income taxes (benefit):
Domestic	(4,604)	(2,958)	(3,084)
Foreign	(553)	319	(44)
Valuation allowance	(338)	197	666
Total deferred	(5,495)us-gaap_DeferredIncomeTaxExpenseBenefit	(2,442)us-gaap_DeferredIncomeTaxExpenseBenefit	(2,462)us-gaap_DeferredIncomeTaxExpenseBenefit
Total income taxes	$ 12,449us-gaap_IncomeTaxExpenseBenefit	$ 4,088us-gaap_IncomeTaxExpenseBenefit	$ 8,978us-gaap_IncomeTaxExpenseBenefit

Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

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