Leases - Additional Information (Detail) $ in Thousands, ₩ in Millions, د.إ in Millions, $ in Millions, $ in Millions	1 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($) renewal_option	Dec. 31, 2020 USD ($)	Dec. 31, 2020 HKD ($)	Nov. 30, 2020	Sep. 30, 2020 SGD ($) 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	Apr. 30, 2020 renewal_option	Mar. 31, 2020 USD ($) lease	Mar. 31, 2020 HKD ($) lease	Feb. 29, 2020 renewal_option	Feb. 20, 2020	Dec. 31, 2019 USD ($)	Jan. 01, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Number of lease agreements | lease												4	4
Finance lease, term of contract											11 years
Finance lease right-of-use assets		$ 1,688,032														$ 1,277,614
Finance lease liability		1,922,499
Operating lease right-of-use assets		1,475,057														$ 1,475,367	$ 1,468,762
Operating lease liability		1,462,834
Lease commitment		$ 684,100
Minimum
Lessee, Lease, Description [Line Items]
Term of lease not yet commenced		10 years
Maximum
Lessee, Lease, Description [Line Items]
Term of lease not yet commenced		49 years
Silicon Valley 4 Data Center
Lessee, Lease, Description [Line Items]
Finance lease, renewal term														5 years
Financing lease, number of renewal options | renewal_option														2
Finance lease, term of contract															15 years 7 months
Finance lease right-of-use assets												$ 62,800
Finance lease liability												$ 63,300
Hong Kong 1 Data Center
Lessee, Lease, Description [Line Items]
Finance lease, term of contract												18 years	18 years
Finance lease right-of-use assets												$ 21,000	$ 163.0
Finance lease liability												$ 21,000	$ 163.0
Hong Kong 1 Data Center Premises 2
Lessee, Lease, Description [Line Items]
Finance lease, term of contract				17 years
Finance lease right-of-use assets		$ 8,500	$ 65.9
Finance lease liability		$ 8,500	$ 65.9
Headquarter Office in Redwood City, California
Lessee, Lease, Description [Line Items]
Finance lease, renewal term											5 years
Financing lease, number of renewal options | renewal_option											2
Finance lease, term of contract											10 years 6 months
Finance lease right-of-use assets							$ 42,200
Finance lease liability							42,200
Operating lease, term of contract											10 years 6 months
Number of operating lease renewals | renewal_option											2
Operating lease, renewal term											5 years
Remaining operating lease terms											11 years
Operating lease right-of-use assets							8,300
Operating lease liability							8,300
Singapore 1 Data Center
Lessee, Lease, Description [Line Items]
Finance lease, renewal term										3 years
Financing lease, number of renewal options | renewal_option										5
Finance lease, term of contract										18 years
Finance lease right-of-use assets							71,400	$ 99.5
Finance lease liability							71,400	99.5
De-recognized operating lease liability							(8,100)	(11.4)
De-recognized right-of-use asset							$ (8,100)	$ (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 of contract							10 years	10 years	10 years
Finance lease right-of-use assets							$ 71,300		د.إ 261.9
Finance lease liability							$ 71,300		د.إ 261.9
Number of finance leases | lease							2	2	2
Singapore Office
Lessee, Lease, Description [Line Items]
Operating lease, term of contract											7 years
Number of operating lease renewals | renewal_option											2
Operating lease, renewal term											3 years
Operating lease right-of-use assets	$ 47,100				$ 64.2
Operating lease liability	$ 47,100				$ 64.2
Seoul 1 Data Center
Lessee, Lease, Description [Line Items]
Finance lease, renewal term	5 years				5 years	5 years
Financing lease, number of renewal options | renewal_option	3				3	3
Finance lease, term of contract	4 years				4 years	4 years
Finance lease right-of-use assets	$ 27,200					₩ 31,777
Finance lease liability	$ 26,000					₩ 30,386
Operating lease, renewal term	5 years				5 years	5 years
Number of likely renewals to be exercised | renewal_option	1				1	1
Term of finance lease	9 years