Fixed Assets, Net - Components of Fixed Assets (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2022 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CNY (¥)
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	¥ 2,889,199	$ 418,893	¥ 3,254,776
Less: Accumulated depreciation	(1,793,614)	(260,050)	(1,916,807)
Construction in progress	9,136	1,326	6,815
Property, plant and equipment, net	1,104,721	160,169	1,344,784
Computer Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	1,960,884	284,301	2,285,185
Office Building
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	588,685	85,351	588,685
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	162,653	23,582	194,336
Office Furniture and Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	147,766	21,424	158,784
Others
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	¥ 29,211	$ 4,235	¥ 27,786

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 of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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