Summary of Significant Accounting Policies - Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|---|
| Goodwill [Line Items] | |||
| Goodwill | $ 56,992 | ||
| Successor | |||
| Goodwill [Line Items] | |||
| Goodwill | $ 579,446 | $ 588,460 | |
| Trademarks and Trade Names | Successor | |||
| Goodwill [Line Items] | |||
| Intangible assets with indefinite lives (trademarks and tradenames) | 1,408,848 | 1,408,848 | |
| Customer Relationships | Successor | |||
| Goodwill [Line Items] | |||
| Intangible assets with definite lives (customer relationships) | $ 514,200 | $ 538,100 |