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Leases - Supplemental Cash Flow Information and Non-Cash Activity Related to Operating Leases (Detail) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Leases [Abstract]    
Right-of-use assets obtained in exchange for new operating lease liabilities $ 155,935 $ 75,116
Right-of-use assets obtained in exchange for new financing lease liabilities 23,845 18,607
Other non-cash increases in operating lease right-of-use assets 11,426 25,598
Other non-cash decreases in financing lease right-of-use assets $ (969) $ (226)