Segment Information - Long-Lived Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	$ 14,768,661	$ 14,503,084
Operating lease right-of-use assets	1,405,835	1,475,057
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	6,638,661	6,429,861
Operating lease right-of-use assets	337,686	363,515
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	4,976,302	5,002,271
Operating lease right-of-use assets	527,435	547,547
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	3,153,698	3,070,952
Operating lease right-of-use assets	$ 540,714	$ 563,995