Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property Plant And Equipment [Line Items]
Property and equipment, Gross	$ 2,457,566	$ 2,315,166
Accumulated depreciation and amortization	(1,815,844)	(1,524,794)
Property and equipment, net	641,722	790,372
Buildings and leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment, Gross	163,881	156,357
Furniture, fixtures and equipment
Property Plant And Equipment [Line Items]
Property and equipment, Gross	38,878	38,049
Computer equipment
Property Plant And Equipment [Line Items]
Property and equipment, Gross	397,454	349,454
Software developed for internal use
Property Plant And Equipment [Line Items]
Property and equipment, Gross	$ 1,857,353	$ 1,771,306

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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