Equity Based Compensation - Assumptions Used in Granting Stock Options (Details) - Successor - Stock option awards $ / shares in Units, $ in Thousands |
3 Months Ended |
|---|---|
|
Dec. 31, 2016
USD ($)
$ / shares
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Options granted (in shares) | shares | 2,760,500 |
| Weighted average grant date fair value (in dollars per share) | $ 5.93 |
| Weighted average exercise price (in dollars per share) | $ 14.67 |
| Total fair value (in thousands) | $ | $ 16,375 |
| Expected term | 6 years |
| Expected stock volatility | 40.00% |
| Dividend yield | 0.00% |
| Risk-free interest rate | 1.50% |