Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 6 Months Ended |
|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2017 |
|
| Earnings Per Share [Abstract] | ||
| Net income attributable to common shareholders | $ 20,762 | $ 30,585 |
| Add: Income from conversion of Class C Common Stock | 1,477 | 1,995 |
| Adjusted net income attributable to common shareholders | $ 22,239 | $ 32,580 |
| Basic net income per share (USD per share) | $ 0.09 | $ 0.14 |
| Diluted net income per share (USD per share) | $ 0.09 | $ 0.14 |
| Basic weighted average share outstanding (in shares) | 223,623 | 212,759 |
| Add: Dilutive effects of stock options and RSUs (in shares) | 925 | 2,046 |
| Add: Dilutive effects of conversion (in shares) | 19,156 | 19,156 |
| Diluted weighted average shares outstanding (in shares) | 243,704 | 233,961 |