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ACCOUNTS RECEIVABLE, NET (Tables) | 12 Months Ended
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Dec. 31, 2015
ACCOUNTS RECEIVABLE, NET |
Schedule of accounts receivable |
|  | As of December 31, |
|  | 201 4 |  | 201 5 |
|  | RMB |  | RMB |  | US$ |
Accounts receivable |  | 263,577 |  | 638,148 |  | 98,513 |
Allowance for doubtful accounts |  | (3,230 | ) | (17,592 | ) | (2,716 | )
|  | 260,347 |  | 620,556 |  | 95,797 |
Schedule of movement of the allowance for doubtful receivables | :
|  | As of December 31, |
|  | 2014 |  | 2015 |
|  | RMB |  | RMB |  | US$ |
Balance at the beginning of the year |  | 72 |  | 3,230 |  | 499 |
Charged to general and administrative expenses |  | 3,230 |  | 13,326 |  | 2,057 |
Additions in connection with business acquisition |  | — |  | 729 |  | 113 |
Write-off during the year |  | (72 | ) | — |  | — |
Foreign Exchange effect |  | — |  | 307 |  | 47 |
Balance at the end of the year |  | 3,230 |  | 17,592 |  | 2,716 |

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- Definition Tabular disclosure for movement of the allowance for doubtful receivables which includes but not limited to additions , recoveries and write-offs of the allowance for the doubtful receivables during the reporting period. + References No definition available. + 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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