Consolidated Statements of Changes in Stockholders' Equity (Current Period Unaudited) - USD ($) shares in Thousands, $ in Thousands		Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) (Predecessor [Member]) at Dec. 31, 2015		120,420
Balance (Predecessor [Member]) at Dec. 31, 2015		$ 1,204	$ 997,766	$ (4,025)	$ (362,302)	$ 632,643
Forfeitures of restricted shares (in shares) | Predecessor [Member]		(576)
Forfeitures of restricted shares | Predecessor [Member]		$ (6)	6
Employee tax withholding on restricted shares vesting (in shares) | Predecessor [Member]		(314)
Employee tax withholding on restricted shares vesting | Predecessor [Member]		$ (3)	(494)			(497)
Tax effect of share-based compensation | Predecessor [Member]			(5,592)			(5,592)
Share-based compensation | Predecessor [Member]			17,740			17,740
Net income (loss) | Predecessor [Member]					(944,289)	(944,289)
Foreign currency translation loss, net of tax | Predecessor [Member]				1,425		1,425
Balance (in shares) (Predecessor [Member]) at Dec. 31, 2016		119,530
Balance (Predecessor [Member]) at Dec. 31, 2016		$ 1,195	1,009,426	(2,600)	(1,306,591)	(298,570)
Net income (loss) | Predecessor [Member]						298,582
Foreign currency translation loss, net of tax | Predecessor [Member]
Cancellation of Predecessor equity (in shares)		(119,530)
Cancellation of Predecessor equity		$ (1,195)	(1,009,426)	2,600	1,306,591	298,570
Issuance of New Equity and New Warrants (in shares)		40,000
Issuance of New Equity and New Warrants		$ 400	725,464			725,864
Rights Offering (in shares)		15,464
Rights Offering		$ 155	199,845			200,000
Balance (in shares) at Jan. 01, 2017	[1]	55,464
Balance at Jan. 01, 2017	[1]	$ 555	925,309			925,864
Balance (in shares) (Predecessor [Member]) at Dec. 31, 2016		119,530
Balance (Predecessor [Member]) at Dec. 31, 2016		$ 1,195	1,009,426	(2,600)	(1,306,591)	(298,570)
Net income (loss)						(34,539)
Foreign currency translation loss, net of tax						(1,158)
Balance (in shares) at Sep. 30, 2017	[1]	63,255
Balance at Sep. 30, 2017	[1]	$ 633	1,159,418	(1,158)	(34,539)	1,124,354
Balance (in shares) at Jan. 01, 2017	[1]	55,464
Balance at Jan. 01, 2017	[1]	$ 555	925,309			925,864
Employee tax withholding on restricted shares vesting (in shares)		(107)
Employee tax withholding on restricted shares vesting		$ (1)	(3,841)			(3,842)
Share-based compensation			22,109			22,109
Net income (loss)					(34,539)	(34,539)
Foreign currency translation loss, net of tax				(1,158)		(1,158)
Public offering of common stock, net of offering costs (in shares)		7,050
Public offering of common stock, net of offering costs		$ 71	215,849			215,920
Issuance of restricted stock, net of forfeitures (in shares)		846
Issuance of restricted stock, net of forfeitures		$ 8	(8)
Exercise of warrants (in shares)		2
Balance (in shares) at Sep. 30, 2017	[1]	63,255
Balance at Sep. 30, 2017	[1]	$ 633	$ 1,159,418	$ (1,158)	$ (34,539)	$ 1,124,354

[1] Unaudited