Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 541,293	$ 465,501
Less accumulated depreciation and amortization	(218,480)	(178,901)
Total property and equipment, net	322,813	286,600
Depreciation and amortization expense	113,400	84,800	$ 62,300
Servers—network infrastructure
Property, Plant and Equipment [Line Items]
Gross property and equipment	330,295	239,828
Construction in progress
Property, Plant and Equipment [Line Items]
Gross property and equipment	45,557	72,827
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Gross property and equipment	75,163	88,541
Depreciation and amortization expense	21,500	20,200	$ 17,900
Office and computer equipment
Property, Plant and Equipment [Line Items]
Gross property and equipment	32,043	30,577
Office furniture
Property, Plant and Equipment [Line Items]
Gross property and equipment	9,003	6,547
Software
Property, Plant and Equipment [Line Items]
Gross property and equipment	5,422	5,962
Leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment	42,984	20,392
Asset retirement obligation
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 826	$ 827