Goodwill and Acquired Intangible Assets, Net - Summary of Goodwill Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Balance at beginning of period	$ 249,773	$ 137,121
Goodwill acquired	762,553	112,356
Foreign currency translation	(45,899)	296
Balance at end of period	$ 966,427	$ 249,773