CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	2 Months Ended	10 Months Ended	12 Months Ended
	Feb. 28, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net income (loss)		$ (247,639)
Other comprehensive income (loss), net of tax effect:
Derivatives		0
Foreign currency translation		0
Comprehensive income (loss)		$ (247,639)
Predecessor
Net income (loss)	$ 630,317		$ (590,586)	$ (1,090,915)
Other comprehensive income (loss), net of tax effect:
Derivatives	0		(24,025)	(62,758)
Foreign currency translation	0		6,073	(2,605)
Comprehensive income (loss)	$ 630,317		$ (608,538)	$ (1,156,278)