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Long-Term Investments - Additional Information (Details) ¥ in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2021 CNY (¥)	Jun. 30, 2020 CNY (¥)	Jun. 30, 2021 USD ($)	Dec. 31, 2020 CNY (¥)
Schedule Of Investments [Line Items]
Cost Method Investments	¥ 167,979		$ 26,017	¥ 168,526
Cost-method Investments, Other than Temporary Impairment	0	¥ 0
Accumulated imapirment of equity investments	38,662		$ 5,988	¥ 38,739
Total unrealized and realized gains and losses of equity investments	¥ 0	¥ 0

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- Definition

Accumulated impairment of equity investments.

+ References

No definition available.

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- Definition

Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

+ References

No definition available.

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- Definition

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the cost method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

+ References

No definition available.

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- Definition

Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117546-209714

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- Definition

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.

+ References

No definition available.

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