Income Taxes - Reconciliation of Unrecognized Tax Benefits - (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Tax
Balance	$ 5,903	$ 5,748
Additions for current year tax positions	6,297	306
Additions for Reorganization Transactions	115,877
Additions for prior years' tax positions: Other		109
Reductions for prior years' tax positions: Expiration of statute of limitations	(353)	(311)
Balance	127,724	5,852
Interest and Penalties
Balance	2,935	2,972
Additions for current year tax positions	1,075
Additions for Reorganization Transactions	5,459
Additions for prior years' tax positions: Accrual of interest and penalties	67	81
Additions for prior years' tax positions: Other		28
Reductions for prior years' tax positions: Expiration of statute of limitations	(144)	(120)
Balance	9,392	2,961
Total
Balance	8,838	8,720
Additions for current year tax positions	7,372	306
Additions for Reorganization Transactions	121,336
Additions for prior years' tax positions: Accrual of interest and penalties	67	81
Additions for prior years' tax positions: Other		137
Reductions for prior years' tax positions: Expiration of statute of limitations	(497)	(431)
Balance	137,116	8,813
Unrecognized tax benefits
Amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate	11,000	6,500
Unrecognized tax benefits attributable to tax refund claims in State of California	93,900
Unrecognized tax benefits, reasonably possible to decrease within the next 12 months	106,400
Unrecognized interest and penalties, reasonably possible to decrease within the next 12 months	5,000
Net expense attributable to interest and penalties recorded	200	$ 0
Accrued interest and penalties attributable to uncertain tax positions and undisputed tax adjustments	11,600		$ 5,000
Accrued interest and penalties attributable to unrecognized tax benefits related to uncertain tax positions	$ 9,400		$ 2,900