Segment Information - Long-Lived Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	$ 6,958,794	$ 5,606,436
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	3,184,491	3,025,450
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	2,220,500	1,157,304
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Company's long-lived assets	$ 1,553,803	$ 1,423,682