CONSOLIDATED AND COMBINED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Stock	Common stock	Treasury Stock	Net Parent Investment	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Non-Controlling Interest
Beginning balance (Predecessor) at Dec. 31, 2014	$ 234,351	$ 0	$ 0	$ 0	$ 232,293		$ 0	$ 2,058
Beginning balance (in shares) (Predecessor) at Dec. 31, 2014		0	0
Increase (Decrease) in Stockholders' Equity [Abstract]
Other comprehensive loss | Predecessor	(1,725)							(1,725)
Net transfers from parent | Predecessor	6,211				6,211
Net (loss) income | Predecessor	(14,057)				(14,057)
Comprehensive income (loss) | Predecessor	(15,782)
Ending balance (Predecessor) at Jul. 31, 2015	224,780	$ 0	$ 0	0	$ 224,447		0	333
Ending balance at Jul. 31, 2015	878	$ 0	$ 1	0		$ 7,080	(6,203)	0	$ 0
Ending balance (in shares) (Predecessor) at Jul. 31, 2015		0	0
Ending balance (in shares) at Jul. 31, 2015		0	6,876,248
Increase (Decrease) in Stockholders' Equity [Abstract]
Reclassification of redeemable shares	206,862		$ 2			206,860
Reclassification of redeemable shares (in shares)			20,686,252
Issuance of PIPE shares	50,000					50,000
Issuance of PIPE shares (in shares)			4,878,048
Issuance of common and preferred shares to Dow	210,000		$ 2			209,998
Issuance of common and preferred shares to Dow (in shares)		1	17,500,000
Reclassification of warrants to accrued expenses and other current liabilities	(6,160)					(6,160)
Reclassification of warrants from accrued expenses and other current liabilities	6,160					6,160
Equity-based compensation	1,080					1,080
Repurchase of warrants	(2,524)					(2,524)
Treasury stock purchases / repurchased for treasury	(2,397)			(2,397)
Other comprehensive loss	(5,559)							(5,559)
Net (loss) income	(14,437)						(14,437)
Comprehensive income (loss)	(19,996)
Ending balance at Dec. 31, 2015	443,903	$ 0	$ 5	(2,397)		472,494	(20,640)	(5,559)	0
Ending balance (in shares) at Dec. 31, 2015		1	49,940,548
Increase (Decrease) in Stockholders' Equity [Abstract]
Equity-based compensation	3,250					3,250
Transfer of director compensation from liability to equity	185					185
Issuance of stock, net of forfeitures (in shares)			813,073
Shares withheld for taxes	(331)					(331)
Shares withheld for taxes (in shares)			(55,034)
Treasury stock purchases / repurchased for treasury	(1,488)			(1,488)
Net (loss) income	(111,560)
Comprehensive income (loss)	(110,374)						(111,560)	1,186
Ending balance at Dec. 31, 2016	335,145	$ 0	$ 5	(3,885)		475,598	(132,200)	(4,373)	0
Ending balance (in shares) at Dec. 31, 2016		1	50,698,587
Increase (Decrease) in Stockholders' Equity [Abstract]
Equity-based compensation	1,886					1,886
Transfer of director compensation from liability to equity	442					442
Issuance of stock, net of forfeitures (in shares)			303,647
Settlement of Dow liabilities	55,089					55,089
Purchase of Non-Controlling Interest	8,352								8,352
Net (loss) income	23,562
Comprehensive income (loss)	15,166						23,471	(8,396)	91
Ending balance at Dec. 31, 2017	$ 416,080	$ 0	$ 5	$ (3,885)		$ 533,015	$ (108,729)	$ (12,769)	$ 8,443
Ending balance (in shares) at Dec. 31, 2017		1	51,002,234