Subsidiary Guarantors - Improper Calculation - Condensed Consolidating Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Issuers
Condensed Consolidating Statement of Operations
Equity interest in income	$ (56,107)	$ (35,667)	$ (58,215)	$ (5,847)
Eliminations
Condensed Consolidating Statement of Operations
Equity interest in income	$ 177,664	70,767	$ 181,826	11,979
Improper Calculation | Restatement Adjustment | Issuers
Condensed Consolidating Statement of Operations
Equity interest in income		35,700		5,800
Improper Calculation | Restatement Adjustment | Eliminations
Condensed Consolidating Statement of Operations
Equity interest in income		$ (35,700)		$ (5,800)