Share-Based Compensation (Details 1) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2015	Dec. 31, 2016
Restricted Stock Units (RSUs) [Member] | Predecessor [Member]
Restricted stock activity
Restricted stock units granted, weighted average price		$ 1.98
Restricted stock units vested		0
Restricted Stock Units (RSUs) [Member] | Successor [Member]
Restricted stock activity
Restricted units outstanding	346,740		178,847
Restricted units outstanding, weighted average price	$ 26.99		$ 23.25
Restricted stock units granted	326,532
Restricted stock units granted, weighted average price	$ 28.21
Restricted stock units forfeited	(16,821)
Restricted stock units forfeited, weighted average price	$ 26.41
Restricted stock units vested	(141,818)
Restricted stock units vested, weighted average price	$ 25.15
Employee Stock Option [Member] | Predecessor [Member]
Stock option activity in shares and weighted average price
Options granted, shares		0
Options exercised, shares		0
Employee Stock Option [Member] | Successor [Member]
Stock option details
Expected dividend	$ 0
Expected volatility	70.30%
Risk-free interest rate	1.99%
Expected life of stock option award	5 years 8 months
Options granted, weighted average grant date fair value	$ 17.09
Stock option activity in shares and weighted average price
Options outstanding, beginning of period, shares	105,811
Options outstanding, beginning of period, weighted average price	$ 23.25
Options granted, shares	428,974
Options granted, shares, weighted average price	$ 27.71
Options canceled, shares	(26,055)
Options canceled, weighted average price	$ 26.96
Options canceled	0
Options canceled, weighted average price	$ 0.00
Options exercised, shares	0
Options exercised, weighted average price	$ 0.00
Options outstanding, end of period, shares	508,730
Options outstanding, end of period, weighted average price	$ 26.82
Options exercisable, end of period, shares	112,338
Options exercisable, end of period, weighted average price	$ 25.47