Segment Reporting and Information about Geographic Areas - Schedule of Long-Lived Assets by Geographic Area (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	$ 11,902,839	$ 3,403,334
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	11,399,545	3,119,478
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	$ 503,294	$ 283,856