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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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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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Property and equipment, net (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019 CNY (¥)	Dec. 31, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 CNY (¥)
Property and equipment, net
Total		¥ 114,565			¥ 120,352
Less: Accumulated depreciation		(79,224)			(100,016)
Property and equipment, net		35,341		$ 2,921	20,336
Depreciation expenses	¥ 22,698	29,288	¥ 26,132
Computers and equipment
Property and equipment, net
Total		61,180			63,663
Leasehold improvement
Property and equipment, net
Total		43,360			45,498
Furniture and fixtures
Property and equipment, net
Total		9,797			10,963
Vehicle
Property and equipment, net
Total		¥ 228			¥ 228