Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings (Accumulated Deficit)
Beginning Balance (Predecessor [Member]) at Dec. 31, 2015	$ (852,724)	$ 448	$ 776,358	$ (2,491)	$ (1,627,039)
Purchase of treasury shares | Predecessor [Member]	(5)	0	0	(5)	0
Issuance of restricted stock | Predecessor [Member]	0	2	(2)	0	0
Amortization of share-based compensation | Predecessor [Member]	1,118	0	1,118	0	0
Net Loss | Predecessor [Member]	851,611	0	0	0	851,611
Ending Balance (Predecessor [Member]) at Apr. 22, 2016	0	0	0	0	0
Ending Balance (Successor [Member]) at Apr. 22, 2016	229,399	100	229,299	0	0
Stockholders' Equity Attributable to Parent before Cancellation | Predecessor [Member]	0	450	777,474	(2,496)	(775,428)
Cancellation of Common Stock | Predecessor [Member]	0	(450)	(777,474)	2,496	775,428
Proceeds from Issuance of Common Stock | Successor [Member]	229,399	100	229,299	0	0
Amortization of share-based compensation | Successor [Member]	191	0	191	0	0
Net Loss | Successor [Member]	(149,601)	0	0	0	(149,601)
Ending Balance (Successor [Member]) at Jun. 30, 2016	$ 79,989	$ 100	$ 229,490	$ 0	$ (149,601)