Summary of Non-Monetary Long-Lived Assets by Geographic Region (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Revenue from External Customer [Line Items]
Total long-lived assets	$ 1,999,339	$ 1,807,998
United States
Revenue from External Customer [Line Items]
Total long-lived assets	1,183,938	940,512
Europe
Revenue from External Customer [Line Items]
Total long-lived assets	812,833	865,233
Rest of World
Revenue from External Customer [Line Items]
Total long-lived assets	$ 2,568	$ 2,253