CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 12, 2016	Dec. 31, 2017	Dec. 31, 2015
Predecessor [Member] | Series A Preferred Stock
Dividends declared on preferred stock, per share		$ 0		$ 300
Predecessor [Member] | Series B Preferred Stock
Dividends declared on preferred stock, per share		$ 0		$ 300
Successor [Member] | Series A Preferred Stock
Dividends declared on preferred stock, per share	$ 0		$ 0
Successor [Member] | Series B Preferred Stock
Dividends declared on preferred stock, per share	$ 0		$ 0