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Earnings Per Share - Schedule of Basic and Diluted EPS (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Numerator [Abstract]                      
Net income $ 51,932 $ 5,844 $ 39,076 $ 29,669 $ 36,251 $ 20,427 $ 19,981 $ 26,437 $ 126,521 $ 103,096 $ 142,112
Less: Net income attributable to participating securities                 (234) (8) (4)
Net income attributable to Class A and Class B common stockholders                 $ 126,287 $ 103,088 $ 142,108
Denominator [Abstract]                      
Denominator for basic net income per share - weighted average shares (in shares)                 289,863,272 284,625,642 285,805,096
Effect of dilutive securities (in shares)                 9,507,857 9,171,065 6,819,400
Denominator for dilutive net income per share (in shares)                 299,371,129 293,796,707 292,624,496
Net income per share, basic (USD per share) $ 0.17 $ 0.02 $ 0.14 $ 0.10 $ 0.13 $ 0.07 $ 0.07 $ 0.09 $ 0.44 $ 0.36 $ 0.50
Net income per share, diluted (USD per share) $ 0.17 $ 0.02 $ 0.13 $ 0.10 $ 0.13 $ 0.07 $ 0.07 $ 0.09 $ 0.42 $ 0.35 $ 0.49