Accounts Receivable, Net

12 Months Ended

Dec. 31, 2014

Accounts Receivable, Net [Abstract]

Accounts Receivable, Net

4. Accounts Receivable, Net

The following table sets out the balance of accounts receivable as of December 31, 2013 and 2014:

	As of December 31,
	2013		2014		2014
	RMB		RMB		US$
Accounts receivable, gross	373,963		517,336		83,380
Allowance for doubtful accounts	(20,584	)	(23,767	)	(3,831	)
Accounts receivable, net	353,379		493,569		79,549

The following table presents the movement of the allowance for doubtful accounts:

	2012		2013		2014		2014
	RMB		RMB		RMB		US$
Balance as of January 1,	8,404		22,198		20,584		3,318
Additional provision charged to bad debt expenses	25,902		2,590		9,229		1,487
Write-off of bad debt provision	(12,108	)	(4,204	)	(1,526	)	(246	)
Disposition of certain investment in a subsidiary	—		—		(4,520	)	(728	)
Balance as of December 31,	22,198		20,584		23,767		3,831