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Accounts receivable, net (Tables) | 12 Months Ended
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Dec. 31, 2016
Accounts receivable, net [Abstract] |
Schedule of accounts receivable, net |
|  | December 31, |
|  | 2015 |  | 2016 |
|  | RMB |  | RMB |
Accounts receivable, gross |  |  | 191,144 |  |  | 224,791 |
Less: allowance for doubtful receivables |  |  | (58,791) |  |  | (55,220) |
Accounts receivable, net |  |  | 132,353 |  |  | 169,571 |
Summary of allowance for doubtful accounts |
|  | For the year ended December 31, |
|  | 2014 |  | 2015 |  | 2016 |
|  | RMB |  | RMB |  | RMB |
Balance at beginning of the year |  |  | (31,214) |  |  | (57,342) |  |  | (58,791) |
(Additions)/reversals charged to general and administrative expenses, net |  |  | (26,246) |  |  | (1,449) |  |  | 3,571 |
Write-off during the year |  |  | 118 |  |  | - |  |  | - |
Balance at end of the year |  |  | (57,342) |  |  | (58,791) |  |  | (55,220) |

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- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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