Segment, Geographic and Product Information - Information Regarding Long-Lived Assets in Geographic Areas (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Long-lived assets:
Total long-lived assets	$ 1,657,869	$ 1,655,848
U.S. [Member]
Long-lived assets:
Total long-lived assets	770,561	767,082
U.K. [Member]
Long-lived assets:
Total long-lived assets	656,073	655,906
Asia [Member]
Long-lived assets:
Total long-lived assets	113,804	119,619
Other Europe/MEA [Member]
Long-lived assets:
Total long-lived assets	72,282	66,487
France [Member]
Long-lived assets:
Total long-lived assets	26,850	28,518
Other Americas [Member]
Long-lived assets:
Total long-lived assets	$ 18,299	$ 18,236