Income Taxes - Net Deferred Tax Asset (Liability) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Net operating loss and capital loss carryforward - 382 limited	$ 57,158	$ 68,210
Net operating loss carryforward - not 382 limited	60,414	40,925
State net operating loss carryforward, net	2,844	3,114
Capital loss carryforward - not 382 limited	48,071	35,982
Company basis difference	20,150	17,978
Reserves and accruals	3,293	2,045
Equity-based compensation expense	16,105	8,926
AMT and other credits	81	81
Other, net	2,429	1,174
Total deferred tax assets	210,545	178,435
Valuation allowance	(187,757)	(151,389)
Total deferred tax assets, net of valuation allowance	22,788	27,046
Deferred tax liabilities:
Intangible assets	20,130	24,132
Total deferred tax liabilities	20,130	24,132
Total net deferred tax assets	$ 2,658	$ 2,914