Cost of Revenues (Tables)

12 Months Ended

Dec. 31, 2016

Cost of Revenue [Abstract]

Schedule of Cost of Revenues

	Year ended December 31,
	2014		2015		2016
	RMB		RMB		RMB		US$
Content-related costs		127,929		184,635		269,313		38,789
Depreciation and amortization		31,703		43,160		42,570		6,131
Bandwidth and internet data center		30,713		38,893		51,766		7,456
VAT and surcharges		191,153		269,491		349,373		50,320
Cost of sales, including tax		—		132,942		1,680,143		241,991
		381,498		669,121		2,393,165		344,687