Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details Textual)

v3.7.0.1
Commitments and Contingencies (Details Textual) - USD ($)
$ in Millions
5 Months Ended 7 Months Ended 12 Months Ended
Dec. 31, 2016
Jul. 19, 2016
Dec. 31, 2015
Operating Leases, Rent Expense $ 1.7    
Surety Bond [Member]      
Long-term Debt 121.7    
Energy Contracts [Member]      
Other Commitments, Future Minimum Payments, Remainder of Fiscal Year 0.3    
Other Commitment, Due in Next Twelve Months $ 0.2    
Predecessor [Member]      
Operating Leases, Rent Expense   $ 1.7 $ 2.5