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Stockholders' Equity - Stock Repurchase Program (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2020 | Sep. 30, 2019 | Oct. 14, 2019 | Oct. 08, 2019
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Stock issued period value | $ 29,203,000 | $ 104,849,000 |  |
Common Class A |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Amount authorized to be repurchased |  |  | $ 300,000,000 | $ 150,000,000
Stock repurchase program, period increase |  |  | $ 150,000,000 |

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- Definition Stock Repurchase Program, Authorized Amount Period Increase + References No definition available. + Details
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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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