XML 82 R66.htm IDEA: XBRL DOCUMENT v3.19.2
Segments - Summary of Geographic Information (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]        
Revenue $ 5,714,073 $ 5,111,434 $ 10,849,583 $ 9,785,386
United States [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Revenue 3,372,201 2,908,185 6,408,907 5,582,402
United Kingdom [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Revenue 657,005 634,264 1,245,587 1,214,781
All other countries [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Revenue $ 1,684,867 $ 1,568,985 $ 3,195,089 $ 2,988,203