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Share-based Compensation - Restricted Equity Plan Narrative (Details)
$ in Millions
2 Months Ended 3 Months Ended 8 Months Ended 9 Months Ended
Jun. 08, 2016
shares
Jun. 08, 2016
USD ($)
Jun. 30, 2016
USD ($)
Jun. 08, 2016
USD ($)
Jun. 30, 2016
USD ($)
vesting_installment
shares
Performance Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares vested in period (in shares) | shares         0
Series B Membership Interest          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares vested in period (in shares) | shares 368,136        
Predecessor | Performance Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Recognized expense related to Performance-Based Units   $ 2.0      
Predecessor | Series B Membership Interest          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percentage of units vesting by term of employment         50.00%
Percentage of units vesting annually         20.00%
Vesting period         5 years
Percentage of units vesting by performance basis         50.00%
Number of twelve-month vesting periods | vesting_installment         5
Selling, general and administrative expenses          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation cost     $ 0.3   $ 0.3
Selling, general and administrative expenses | Predecessor | Time Based Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation cost   $ 0.1   $ 0.7