Net Income (Loss) per Share - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended		6 Months Ended
	Jul. 31, 2017	Jun. 13, 2017	May 17, 2017	Mar. 31, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017
Successor
Class of Stock [Line Items]
Dividends paid (in dollars per share)			$ 0.05	$ 3.56
Dividends paid		$ 2,700		$ 190,000	$ 2,673	$ 0	$ 192,673
Restricted Stock | 2016 Equity Plan | Successor
Class of Stock [Line Items]
Common stock issues to employees and directors, unvested (in shares)					798,124		798,124
Restricted Stock | 2017 Equity Plan | Successor
Class of Stock [Line Items]
Common stock issues to employees and directors, unvested (in shares)					17,582		17,582
Phantom Share Units (PSUs) | 2016 Equity Plan
Class of Stock [Line Items]
Settlement period							5 years
Phantom Share Units (PSUs) | 2016 Equity Plan | Successor
Class of Stock [Line Items]
Common stock shares issued (in shares)							43,580
Phantom Share Units (PSUs) | 2017 Equity Plan
Class of Stock [Line Items]
Settlement period							5 years
Restricted Stock Units (RSUs) | 2017 Equity Plan | Successor
Class of Stock [Line Items]
Common stock shares issued (in shares)							13,157
Subsequent Event
Class of Stock [Line Items]
Dividends paid (in dollars per share)	$ 0.05