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Consolidated Statements of Operations and Comprehensive Income/(Loss) (Parenthetical) - CNY (¥)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Consolidated Statements of Operations and Comprehensive Income/(Loss)
Unrealized gains/(losses), tax	¥ 0	¥ 0	¥ 0
Reclassification adjustment for (gains)/losses recorded in net income, tax	¥ 0	¥ 0	¥ 0

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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