Deferred Revenue

12 Months Ended

Dec. 31, 2014

Deferred Revenue [Abstract]

Deferred Revenue

13. DEFERRED REVENUE

Deferred revenue primarily consists of customer advance and deferred income. Customer advance represents service fees prepaid by customers for which the relevant services have not been provided. Deferred income mainly includes deferred subsidy income and deferred reimbursement of ADS depositary service.

	December 31,
	2013		2014
Deferred revenue - current
Customers advance	$	33,979	$	52,548
Deferred income		12,653		20,342
Total deferred revenue - current	$	46,632	$	72,890
Deferred revenue - noncurrent
Customers advance	$	1,612	$	1,606
Deferred income		1,932		675
Total deferred revenue - noncurrent	$	3,544	$	2,281