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Fair Value Measurement - Fair Value Measurements of Company's Assets and Liabilities that Measured at Fair Value on A Recurring Basis (Details) ¥ in Thousands, $ in Thousands | Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥)
--- | --- | --- | ---
Short-term investment |  |  |
Trading debt securities | ¥ 14,804 | $ 2,323 |
Equity securities measured at fair value | 7,925 | 1,244 |
Investments held by consolidated investment fund | 26,981 | 4,234 |
Long-term investment |  |  |
Available-for-sale investments in debt securities |  |  | ¥ 14,135
Investments held by consolidated investment fund | 80,327 | 12,605 | 74,498
Other long-term investments measured at fair value | 376,957 | $ 59,153 | 285,045
Recurring Basis |  |  |
Short-term investment |  |  |
Available for sale investments | 13,805 |  |
Trading debt securities | 14,804 |  |
Equity securities measured at fair value | 7,925 |  |
Investments held by consolidated investment fund | 26,981 |  |
Long-term investment |  |  |
Available-for-sale investments in debt securities |  |  | 14,135
Investments held by consolidated investment fund | 80,327 |  | 74,498
Other long-term investments measured at fair value | 376,957 |  | 285,045
Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Short-term investment |  |  |
Trading debt securities | 14,804 |  |
Equity securities measured at fair value | 7,925 |  |
Long-term investment |  |  |
Other long-term investments measured at fair value | 3,766 |  | 6,196
Recurring Basis | Significant Other Observable Inputs (Level 2) |  |  |
Short-term investment |  |  |
Available for sale investments | 13,805 |  |
Investments held by consolidated investment fund | 26,981 |  |
Long-term investment |  |  |
Available-for-sale investments in debt securities |  |  | 14,135
Investments held by consolidated investment fund | 80,327 |  | 74,498
Other long-term investments measured at fair value | 127,678 |  | 40,141
Recurring Basis | Significant Unobservable Inputs (Level 3) |  |  |
Long-term investment |  |  |
Other long-term investments measured at fair value | 217,269 |  | 216,221
Recurring Basis | NAV |  |  |
Long-term investment |  |  |
Other long-term investments measured at fair value | ¥ 28,244 |  | ¥ 22,487

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