Share Based Compensation - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares Outstanding, Beginning Balance (in shares)	15,521	13,861	14,079
Number of Shares Granted (in shares)	2,660	3,335	2,489
Number of Shares Exercised (in shares)	(2,307)	(939)	(2,572)
Number of Shares Cancelled / Forfeited (in shares)	(297)	(736)	(135)
Number of Shares Outstanding, Ending Balance (in shares)	15,577	15,521	13,861
Number of Shares Exercisable, Ending Balance	10,644
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Price Outstanding, Beginning Balance (in dollars per share)	$ 2.49	$ 2.41	$ 2.19
Weighted Average Exercise Price Granted (in dollars per share)	4.37	2.73	3.01
Weighted Average Exercise Price Exercised (in dollars per share)	2.27	1.93	1.76
Weighted Average Exercise Price Cancelled/Forfeited (in dollars per share)	3.02	2.83	2.81
Weighted Average Exercise Price Outstanding, Ending Balance (in dollars per share)	2.83	$ 2.49	$ 2.41
Weighted Average Exercise Price Exercisable, Ending Balance (in dollars per share)	$ 2.46
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract]
Weighted Average Remaining Contractual Term (Years) Outstanding, Ending Balance	6 years 6 months	6 years 7 months 6 days	6 years 8 months 12 days
Weighted Average Remaining Contractual Term (Years) Exercisable, Ending Balance	5 years 4 months 24 days
Aggregate Intrinsic Value, Exercised	$ 5,052	$ 1,072	$ 6,477
Aggregate Intrinsic Value Outstanding, Ending Balance	13,839	$ 23,407	$ 31,713
Aggregate Intrinsic Value Exercisable, Ending Balance	$ 12,028