Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Income Tax Disclosure [Abstract]
U.S. Federal tax rate	35.00%
Income tax expense (benefit)	$ (7,286)	$ 1,093
Effective tax rate	31.80%	21.70%
Tax benefit related to production activities	1.90%
Foreign affiliate investment tax benefit, percent	1.70%

Effective Income Tax Rate Reconciliation, Foreign Investment Tax Benefit, Percent

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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