CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenue	$ 694,039	$ 584,550	$ 1,310,060	$ 1,075,803
Operating expenses:
Platform operations	150,980	110,459	293,819	214,089
Sales and marketing	161,131	133,867	313,874	255,592
Technology and development	134,251	110,035	266,653	217,721
General and administrative	130,900	135,469	264,485	265,024
Total operating expenses	577,262	489,830	1,138,831	952,426
Income from operations	116,777	94,720	171,229	123,377
Other expense (income):
Interest income, net	(18,035)	(17,817)	(38,167)	(34,478)
Foreign currency exchange loss (gain), net	1,611	45	426	(670)
Total other income, net	(16,424)	(17,772)	(37,741)	(35,148)
Income before income taxes	133,201	112,492	208,970	158,525
Provision for income taxes	43,072	27,463	68,163	41,836
Net income	$ 90,129	$ 85,029	$ 140,807	$ 116,689
Earnings per share:
Basic (in dollars per share)	$ 0.18	$ 0.17	$ 0.29	$ 0.24
Diluted (in dollars per share)	$ 0.18	$ 0.17	$ 0.28	$ 0.23
Weighted-average shares outstanding:
Basic (in shares)	490,631	489,353	492,767	488,952
Diluted (in shares)	495,776	500,040	499,340	499,117