Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Effective Income Tax Rate	(3.00%)	7.80%	(1.20%)	6.50%
Income Tax Expense (Benefit)	$ 1,731	$ (6,097)	$ 906	$ (6,148)
Income (loss) before taxes	$ (57,189)	$ (78,395)	$ (78,720)	$ (94,444)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			35.00%