Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings (Deficit)
Beginning Balance | Predecessor [Member]	$ 1,065,350	$ 439	$ 762,242	$ (12,575)	$ 315,244
Stock issued for benefit plans | Predecessor [Member]	1,909	0	(1,876)	3,785	0
Purchase of treasury shares | Predecessor [Member]	(1,065)	0	0	(1,065)	0
Employee stock purchase plan | Predecessor [Member]	824	1	823	0	0
Issuance of restricted stock | Predecessor [Member]	0	4	(4)	0	0
Amortization of share-based compensation | Predecessor [Member]	10,787	0	10,787	0	0
Net Income (Loss) | Predecessor [Member]	(283,427)	0	0	0	(283,427)
Beginning Balance | Predecessor [Member]	794,378	444	771,972	(9,855)	31,817
Stock issued for benefit plans | Predecessor [Member]	919	0	(1,714)	7,518	(4,885)
Purchase of treasury shares | Predecessor [Member]	(154)	0	0	(154)	0
Employee stock purchase plan | Predecessor [Member]	302	1	301	0	0
Issuance of restricted stock | Predecessor [Member]	0	3	(3)	0	0
Amortization of share-based compensation | Predecessor [Member]	5,802	0	5,802	0	0
Net Income (Loss) | Predecessor [Member]	(1,653,971)	0	0	0	(1,653,971)
Beginning Balance | Predecessor [Member]	(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 Income (Loss) | Predecessor [Member]	851,611	0	0	0	851,611
Beginning Balance | Predecessor [Member]	0	0	0	0	0
Beginning Balance | Successor [Member]	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
Issuance of Successor Common Stock & Warrants | Successor [Member]	229,399	100	229,299	0	0
Purchase of treasury shares | Successor [Member]	(675)	0	0	(675)	0
Issuance of restricted stock | Successor [Member]	1	1	0	0	0
Amortization of share-based compensation | Successor [Member]	3,618	0	3,618	0	0
Net Income (Loss) | Successor [Member]	(156,288)	0	0	0	(156,288)
Beginning Balance | Successor [Member]	$ 76,055	$ 101	$ 232,917	$ (675)	$ (156,288)