Leases - Narrative (Detail) د.إ in Millions, $ in Millions, $ in Millions	1 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) renewal_option	Apr. 30, 2020 renewal_option	Sep. 30, 2020 USD ($) renewal_option	Sep. 30, 2020 SGD ($) renewal_option	Sep. 30, 2020 KRW (₩) renewal_option	Jun. 30, 2020 USD ($) lease	Jun. 30, 2020 SGD ($) lease	Jun. 30, 2020 AED (د.إ) lease	May 31, 2020 renewal_option	Mar. 31, 2020 USD ($) renewal_option	Mar. 31, 2020 HKD ($) renewal_option	Feb. 29, 2020	Feb. 20, 2020	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Finance lease term		11 years
Right-of-use asset, finance lease	$ 1,551,396,000		$ 1,551,396,000											$ 1,277,614,000
Lease liability, finance lease	1,793,881,000		1,793,881,000
Operating lease right-of-use assets	1,436,337,000		1,436,337,000											$ 1,475,367,000
Operating lease liability	1,423,359,000		1,423,359,000
Lease liability	682,000,000.0		682,000,000.0
Silicon Valley 4 Data Center
Lessee, Lease, Description [Line Items]
Finance lease renewal term												5 years
Number of renewal options | renewal_option										2	2
Finance lease term													15 years 7 months
Right-of-use asset, finance lease										$ 62,800,000
Lease liability, finance lease										$ 63,300,000
Hong Kong 1 Data Center
Lessee, Lease, Description [Line Items]
Finance lease term										18 years	18 years
Right-of-use asset, finance lease										$ 21,000,000.0	$ 163.0
Headquarter Office in Redwood City, California
Lessee, Lease, Description [Line Items]
Finance lease renewal term		10 years 6 months
Number of renewal options | renewal_option		2
Finance lease, renewal term		5 years
Right-of-use asset, finance lease						$ 42,200,000
Lease liability, finance lease						42,200,000
Operating lease term of contract		10 years 6 months
Number of operating lease renewal terms | renewal_option		2
Operating lease, remaining lease term		11 years
Operating lease right-of-use assets						8,300,000
Operating lease liability						8,300,000
Singapore 1 Data Center
Lessee, Lease, Description [Line Items]
Finance lease renewal term									3 years
Number of renewal options | renewal_option									5
Finance lease, renewal term									3 years
Finance lease term									18 years
Right-of-use asset, finance lease						71,400,000	$ 99.5
Lease liability, finance lease						71,400,000	99.5
Operating lease de-recognized						8,100,000	11.4
Operating lease, right-of-use asset de-recognized						$ 8,100,000	$ 11.4
Abu Dhabi 1 Data Center
Lessee, Lease, Description [Line Items]
Finance lease renewal term						3 years	3 years	3 years
Finance lease term						10 years	10 years	10 years
Right-of-use asset, finance lease						$ 71,300,000		د.إ 261.9
Lease liability, finance lease						$ 71,300,000		د.إ 261.9
Number of finance leases | lease						2	2	2
Singapore Office
Lessee, Lease, Description [Line Items]
Finance lease, renewal term		3 years
Operating lease term of contract		7 years
Number of operating lease renewal terms | renewal_option		2
Operating lease right-of-use assets	47,100,000		47,100,000	$ 64.2
Operating lease liability	$ 47,100,000		$ 47,100,000	$ 64.2
Concluded operating lease term with likely to be exercised renewal		7 years
Seoul 1 Data Center
Lessee, Lease, Description [Line Items]
Finance lease renewal term	5 years		5 years	5 years	5 years
Number of renewal options | renewal_option	3		3	3	3
Finance lease term	4 years		4 years	4 years	4 years
Right-of-use asset, finance lease	$ 27,200,000		$ 27,200,000		₩ 31,777,000,000
Lease liability, finance lease	$ 26,000,000.0		$ 26,000,000.0		₩ 30,386,000,000
Number of renewal options likely to be exercised | renewal_option	1		1	1	1
Concluded lease term with likely to be exercised renewal	9 years
Minimum
Lessee, Lease, Description [Line Items]
Lease not yet commenced, term			10 years
Maximum
Lessee, Lease, Description [Line Items]
Lease not yet commenced, term			49 years