Income Taxes (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Dec. 12, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Provision for corporate income taxes		$ 821	$ 12,899	$ 622	$ 12,082
Effective income tax rate				(23.00%)	47.00%
Deferred tax liability, net		61		$ 61		$ 61
Unrecognized tax benefits		$ 1,154		$ 1,154
Proposed tax assessment 2006 to 2009	$ 4,722
Interest portion of the proposed tax assessment 2006 to 2009	$ 2,044