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Segment Reporting and Information about Geographic Areas - Schedule of Revenues by Geographic Area (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues $ 6,349,676 $ 4,002,231 $ 10,891,140 $ 7,410,982
United States [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues 3,480,000 2,246,637 5,809,569 4,115,828
China [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues 689,735 527,230 1,469,148 1,035,933
Norway [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues 380,373 224,421 796,433 386,741
Netherlands [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues 248,102 206,550 361,453 353,076
Other [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues $ 1,551,466 $ 797,393 $ 2,454,537 $ 1,519,404