Shareholders' Equity and Noncontrolling Interest - Warrants (Details) - $ / shares |
9 Months Ended | |
|---|---|---|
Sep. 30, 2017 |
Mar. 01, 2017 |
|
| Public Warrants | ||
| Class of Warrant or Right [Line Items] | ||
| Warrant exercise price (in dollars per share) | $ 0.01 | |
| Public Warrants | Common Stock Class A | ||
| Class of Warrant or Right [Line Items] | ||
| Warrants exercised (in shares) | 6,235,790 | |
| Warrants To Purchase Class A Common Stock, Private Placement | ||
| Class of Warrant or Right [Line Items] | ||
| Warrants outstanding (in shares) | 8,000,000 | |
| Private Placement Warrants | ||
| Class of Warrant or Right [Line Items] | ||
| Warrant exercise price (in dollars per share) | $ 11.50 |