Segment and Geographic Information - Summary of Revenue and Long-lived Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Segment Reporting Information [Line Items]
Revenues	$ 218,415	$ 219,462	$ 451,795	$ 428,038
Long-lived assets	111,362		111,362		$ 112,431
United States [Member]
Segment Reporting Information [Line Items]
Revenues	141,508	148,628	291,257	291,288
Long-lived assets	100,541		100,541		99,849
United Kingdom [Member]
Segment Reporting Information [Line Items]
Revenues	48,607	44,570	101,453	87,299
Long-lived assets	8,967		8,967		10,740
Other [Member]
Segment Reporting Information [Line Items]
Revenues	28,300	$ 26,264	59,085	$ 49,451
Long-lived assets	$ 1,854		$ 1,854		$ 1,842