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ACCOUNTS RECEIVABLE, NET (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2014 CNY (¥)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2014 CNY (¥)
Accounts receivable net
Accounts receivable				$ 98,513	¥ 638,148	¥ 263,577
Allowance for doubtful accounts	$ (499)	¥ (3,230)	¥ (72)	(2,716)	(17,592)	(3,230)
Accounts receivable, net				$ 95,797	¥ 620,556	¥ 260,347
Movement of the allowance for doubtful receivables
Balance at the beginning of the year	499	3,230	72
Charged to general and administrative expenses	2,057	13,326	3,230
Additions in connection with business acquisition	113	729
Write-off during the year			(72)
Foreign Exchange effect	47	307
Balance at the end of the year	$ 2,716	¥ 17,592	¥ 3,230

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- Definition

Amount of additions that leads to doubtful accounts in connection with business acquisition.

+ References

No definition available.

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- Definition

Amount of doubtful accounts receivable due to effect of foreign exchange differences.

+ References

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- Definition

For unclassified balance sheet, amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business.

+ References

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For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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Amount of direct write-downs of accounts receivable charged against the allowance.

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Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

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