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Stockholders' Equity - Summary of Stock Option Award Activity (Details) - Stock Options - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Weighted-Average Exercise Price    
Weighted-Average Exercise Price, Beginning balance $ 10.37  
Weighted-Average Exercise Price, Exercised 13.98  
Weighted-Average Exercise Price, Ending balance $ 10.16 $ 10.37
Weighted-Average Remaining Contractual Term    
Weighted-Average Remaining Contractual Term (in years) 4 years 9 months 3 days 5 years 2 months 12 days
Aggregate Intrinsic Value    
Aggregate Intrinsic Value, Outstanding $ 223,515 $ 223,230
Class A Common Stock    
Number of Shares    
Number of Shares, Beginning balance 4,828  
Number of Shares, Exercised (314)  
Number of Shares, Ending balance 4,514 4,828
Class B Common Stock    
Number of Shares    
Number of Shares, Beginning balance 796  
Number of Shares, Exercised (5)  
Number of Shares, Ending balance 791 796