Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 14,000
Deferred Income Tax Expense (Benefit)	(12,500)
Deferred Tax Assets, Net of Valuation Allowance	1,500
Income tax benefit	12,461	$ 580
Unrecognized tax benefits	4,800
Unrecognized tax benefits that would impact effective tax rate	$ 4,000