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Leases - Significant Lease Transactions (Detail)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
USD ($)
option
Dec. 31, 2020
USD ($)
Lessee, Lease, Description [Line Items]    
Finance lease right-of-use assets $ 1,816,380 $ 1,688,032
Finance lease liability 2,061,895  
Operating lease right-of-use assets 1,405,835 $ 1,475,057
Operating lease liability 1,399,730  
Silicon Valley 8 ("SV8") data center lease extended (3)    
Lessee, Lease, Description [Line Items]    
Finance lease right-of-use assets 98,100  
Finance lease liability 100,000  
Operating lease right-of-use assets (13,700)  
Operating lease liability $ (15,600)  
Lease term 16 years  
Number of renewal options | option 2  
Finance lease renewal term 10 years  
Hong Kong 3 ("HK3") data center lease extended (3)    
Lessee, Lease, Description [Line Items]    
Lease term 10 years  
Finance lease renewal term 5 years  
Hong Kong 3 ("HK3") data center lease extended (3) | Building    
Lessee, Lease, Description [Line Items]    
Finance lease right-of-use assets $ 38,000  
Finance lease liability 38,000  
Hong Kong 3 ("HK3") data center lease extended (3) | Land    
Lessee, Lease, Description [Line Items]    
Operating lease right-of-use assets 6,600  
Operating lease liability $ 6,600