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v3.20.1

Stockholders' Equity - Share Activity by Class of Stock (Details) - shares | 3 Months Ended |
--- | --- | ---
Mar. 31, 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) | 78,590,423 |
Shares issued in period (in shares) | 60,000 |
Class A Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Restricted share award net share settlement (in shares) | (126,971) |
Delivery of Shares Underlying RSUs (in shares) | 24,233 |
Ending balance (in shares) | 60,647,331 |
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) | 5,980,743 |
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) | 11,962,349 |
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
Performance Shares |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Granted (in shares) | 60,000 |
Performance Shares | Pro Forma [Member] |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Granted (in shares) | 90,000 |
Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Holdings Common Unit Exchanges (in shares) | 0 |
Common Stock | Holdings GP Units |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Holdings Common Unit Exchanges (in shares) | (1,626,611) |
Common Stock | Class B Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Holdings Common Unit Exchanges (in shares) | (45,295) |
Common Stock | Class C Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Holdings Common Unit Exchanges (in shares) | (1,581,316) |
Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Employee/Partner Terminations (in shares) | (24,778) |
Common Stock | Class A Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Employee/Partner Terminations (in shares) | (24,778) |
Common Stock | Class B Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Employee/Partner Terminations (in shares) | 0 |
Common Stock | Class C Common Stock |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Employee/Partner Terminations (in shares) | 0 |
Follow On Offering |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 0 |
Follow On Offering | Holdings GP Units |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |
Shares issued (in shares) | 1,802,326 |
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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