v3.8.0.1
Stock-Based Compensation - Restricted Stock Awards, Narrative (Details) - USD ($)
2 Months Ended 12 Months Ended
Jan. 01, 2018
Oct. 12, 2017
Mar. 23, 2017
Dec. 31, 2016
Dec. 31, 2017
Successor          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation expense       $ 0 $ 7,400,000
Restricted Stock | Successor          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares granted         510,000
Total unrecognized compensation cost         $ 0
Restricted Stock | Successor | General and Administrative Expense          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation expense         $ 1,000,000
Restricted Stock | Executive          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares granted   435,000 435,000    
Subsequent Event | Restricted Stock | Executive          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock granted, post modification (in shares) 75,000