Segments and Geographical Information - Summary of Significant Segment Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting [Abstract]
Revenue	$ 156,629		$ 117,140		$ 323,261	$ 208,205
Advertising expense	111,109		80,685		230,881	140,932
Cash operating expense	23,564		23,527		47,917	46,757
Other segment items, net	7,255		6,526		21,772	12,207
Net income	$ 14,701	$ 7,990	$ 6,402	$ 1,907	$ 22,691	$ 8,309