Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jan. 02, 2017	Dec. 31, 2016
Income Tax Contingency [Line Items]
Effective income tax rates	(31.00%)	(5.20%)	(19.70%)	(2.30%)
Cumulative unrecognized federal gross windfall net operating loss carryover						$ 8,600
Cumulative unrecognized state gross windfall net operating loss carryover						6,800
Retained earnings	$ 45,282		$ 45,282			4,438
Unrecognized tax benefits	1,500		1,500			1,500
Unrecognized tax benefits income tax penalties and interest accrued	$ 400		$ 400			300
State
Income Tax Contingency [Line Items]
Net operating loss carryforwards						524,900
Net operating loss carryforwards, Year of expiration			2024
Federal
Income Tax Contingency [Line Items]
Net operating loss carryforwards						$ 571,300
Net operating loss carryforwards, Year of expiration			2028
ASU 2016-16 | Restatement adjustment
Income Tax Contingency [Line Items]
Prepaid tax assets, net					$ 378,500
Recognized deferred tax assets					378,200
Retained earnings					(300)
ASU 2016-09 | Restatement adjustment
Income Tax Contingency [Line Items]
Deferred tax assets					3,300
Retained earnings					$ 3,300