Earnings per Share - Schedule of Calculation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator
Net income	$ 22,568	$ 22,252
Denominator
Weighted average shares used to compute earnings per share — basic	73,264	71,782
Weighted average number of shares used to compute earnings per share — diluted	74,803	74,033
Earnings per share:
Basic	$ 0.31	$ 0.31
Diluted	$ 0.30	$ 0.30
Common Class A
Numerator
Net income	$ 12,424	$ 10,779
Reallocation of undistributed earnings	10,144	11,473
Net income attributable to common stockholders — diluted	$ 22,568	$ 22,252
Denominator
Weighted average shares used to compute earnings per share — basic	40,333	34,771
Conversion of Class B to Class A common stock outstanding	32,931	37,011
Effect of dilutive stock options and RSUs	1,539	2,251
Weighted average number of shares used to compute earnings per share — diluted	74,803	74,033
Earnings per share:
Basic	$ 0.31	$ 0.31
Diluted	$ 0.30	$ 0.30
Common Class B
Numerator
Net income	$ 10,144	$ 11,473
Reallocation of undistributed earnings	256	328
Net income attributable to common stockholders — diluted	$ 10,400	$ 11,801
Denominator
Weighted average shares used to compute earnings per share — basic	32,931	37,011
Effect of dilutive stock options and RSUs	1,539	2,251
Weighted average number of shares used to compute earnings per share — diluted	34,470	39,262
Earnings per share:
Basic	$ 0.31	$ 0.31
Diluted	$ 0.30	$ 0.30