Consolidated Statements of Stockholders' Equity (Deficit) (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2015
Dividends (in dollars per share)	$ 1.05
Predecessor
shares issued stock plans RS and RSU		64,000
Successor
shares issued stock plans RS and RSU	17,233
Dividends (in dollars per share)	$ 0.35
Purchase of 3,977,215 shares of common stock under share repurchase program	3,977,215