Segment, Geographic and Product Information - Geographic Information Regarding Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues:
Total revenues	$ 550,761	$ 493,080	$ 1,129,375	$ 1,025,947
U.K.
Revenues:
Total revenues	192,183	174,334	401,771	365,518
U.S.
Revenues:
Total revenues	180,562	162,387	362,648	331,724
Asia
Revenues:
Total revenues	73,093	67,729	146,938	139,100
Other Europe/MEA
Revenues:
Total revenues	63,546	44,270	131,440	99,159
France
Revenues:
Total revenues	23,345	25,407	50,603	52,545
Other Americas
Revenues:
Total revenues	$ 18,032	$ 18,953	$ 35,975	$ 37,901