Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Treasury stock (in shares)	474,050	3,184,269
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	600,000,000	600,000,000
Common stock, issued (in shares)	126,852,765	126,378,715
Common stock, outstanding (in shares)	110,693,832	107,509,563
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	100,000,000	100,000,000
Common stock, issued (in shares)	0	12,158,933
Common stock, outstanding (in shares)	0	12,158,933