Income Taxes (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 10, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Provision (benefit) for corporate income taxes		$ 12,899	$ (14,992)	$ 12,082	$ (14,728)
Effective income tax rate				47.00%	25.00%
Deferred tax liability, net		61		$ 61		$ 61
State deferred tax liability, net		17		17		$ 17
Unrecognized tax benefits		$ 1,187		$ 1,187
Proposed tax assessment 2006 to 2009	$ 4,544
Interest portion of the proposed tax assessment 2006 to 2009	$ 2,042