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FINANCIAL INCOME/(EXPENSE), NET - Schedule of financial income, net (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥)
Interest income | ¥ 15,947 |  | ¥ 46,667 | ¥ 52,889
Interest expenses | (4,181) |  | (6,383) |
Gains/(loss) from fair value changes of equity securities investment | 59,690 |  | (53,683) | 68,555
Bank charges | (529) |  | (709) | (444)
Others | 9,134 |  | 5,537 | 370
Financial Income | ¥ 80,061 | $ 12,563 | ¥ (8,571) | ¥ 121,370

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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(b)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 + Details
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- Definition Unrealized gain loss on equity securities with readily determinable fair value and without readily determinable fair value. + References No definition available. + Details
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