Income Per Common Share - Schedule of Basic and Diluted Income Per Common Share Calculation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Basic weighted average number of common shares outstanding (in shares)	37,931,256	36,908,320
Effect of dilutive securities:
Diluted average shares outstanding (in shares)	39,855,683	36,908,320
Net income (loss) available to common stockholders	$ 8,328	$ (10,000)
Basic income per common share (in USD per share)	$ 0.22	$ (0.27)
Dilutive income per common share (in USD per share)	$ 0.21	$ (0.27)
Stock Options, Unvested Common Shares, and Warrants
Effect of dilutive securities:
Stock options, unvested common shares, and warrants (in shares)	1,924,427	0
Antidilutive securities not included in the calculation of diluted income (loss) per common share (weighted average):
Antidilutive securities (in shares)	0
Tangible Equity Units
Antidilutive securities not included in the calculation of diluted income (loss) per common share (weighted average):
Antidilutive securities (in shares)	0	463,635
Unvested Stock Options
Antidilutive securities not included in the calculation of diluted income (loss) per common share (weighted average):
Antidilutive securities (in shares)	0	240,000
Warrants
Antidilutive securities not included in the calculation of diluted income (loss) per common share (weighted average):
Antidilutive securities (in shares)	0	1,907,551
Successor | Preferred Stock
Antidilutive securities not included in the calculation of diluted income (loss) per common share (weighted average):
Antidilutive securities (in shares)		825,038