CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 315,323	$ 219,811
Operating expenses:
Platform operations	63,890	50,500
Sales and marketing	70,688	55,764
Technology and development	71,999	53,918
General and administrative	125,799	51,845
Total operating expenses	332,376	212,027
Income (loss) from operations	(17,053)	7,784
Other expense (income):
Interest expense, net	1,076	45
Foreign currency exchange loss (gain), net	(795)	(353)
Total other expense (income), net	281	(308)
Income (loss) before income taxes	(17,334)	8,092
Benefit from income taxes	(2,736)	(14,550)
Net income (loss)	$ (14,598)	$ 22,642
Earnings (loss) per share:
Basic	$ (0.03)	$ 0.05
Diluted	$ (0.03)	$ 0.05
Weighted-average shares outstanding:
Basic	484,190	472,816
Diluted	484,190	497,916