Segment Information - Long-Lived Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	$ 7,251,399	$ 5,606,436
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	3,273,748	3,025,450
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	2,400,057	1,157,304
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	$ 1,577,594	$ 1,423,682