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v3.20.2

Stockholders' Equity - Share Activity by Class of Stock (Details) - shares | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance (in shares) | 77,801,854 |
Shares issued (in shares) | 0 |
Restricted share award net share settlement (in shares) | (126,971) |
Delivery of Shares Underlying RSUs (in shares) | 24,233 |
Ending balance (in shares) | 78,575,100 |
Class A Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance (in shares) | 56,429,825 |
Restricted share award net share settlement (in shares) | (126,971) |
Delivery of Shares Underlying RSUs (in shares) | 24,233 |
Ending balance (in shares) | 61,425,521 |
Class B Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance (in shares) | 7,803,364 |
Restricted share award net share settlement (in shares) | 0 |
Delivery of Shares Underlying RSUs (in shares) | 0 |
Ending balance (in shares) | 5,519,415 |
Class C Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Beginning balance (in shares) | 13,568,665 |
Restricted share award net share settlement (in shares) | 0 |
Delivery of Shares Underlying RSUs (in shares) | 0 |
Ending balance (in shares) | 11,630,164 |
Restricted Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 916,085 |
Granted (in shares) | 919,455 |
Restricted Stock | Class A Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 916,085 |
Restricted Stock | Class B Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 0 |
Restricted Stock | Class C Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 0 |
Restricted Stock Units RSUs |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Restricted stock units outstanding (in shares) | 304,570 | 297,891
Granted (in shares) | 3,370 |
Performance Shares |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued in period (in shares) | 60,000 |
Granted (in shares) | 60,000 |
Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Holdings Common Unit Exchanges (in shares) | 0 |
Common Stock | Class A Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Holdings Common Unit Exchanges (in shares) | (2,420,124) |
Common Stock | Class B Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Holdings Common Unit Exchanges (in shares) | (473,818) |
Common Stock | Class C Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Holdings Common Unit Exchanges (in shares) | (1,946,306) |
Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Employee/Partner Terminations (in shares) | (40,101) |
Common Stock | Class A Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Holdings Common Unit Exchanges (in shares) | (40,101) |
Common Stock | Class B Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Employee/Partner Terminations (in shares) | (32,805) |
Common Stock | Class C Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Employee/Partner Terminations (in shares) | (32,805) |
Follow On Offering |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 0 |
Follow On Offering | Class A Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 1,802,326 |
Follow On Offering | Class B Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 1,777,326 |
Follow On Offering | Class C Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 25,000 |

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