Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income tax provision [(benefit)] for continuing operations
Income tax benefit (expense)	$ 2,205	$ (40,688)	$ 12,350	$ (30,709)
Effective tax rate (as a percent)	(32.60%)	30.90%	20.10%	29.70%
Statutory income tax rate			37.00%