Fixed Assets (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Fixed Assets

	As of December 31,
	2015			2016			2016
	RMB			RMB			US$
	(In thousands)
Computer equipment		12,520,942			15,192,502			2,188,175
Office building		3,094,551			3,247,212			467,696
Office building related facility, machinery and equipment		1,593,090			1,772,428			255,283
Vehicles		31,450			45,267			6,520
Office equipment		433,144			546,442			78,704
Leasehold improvements		302,304			315,745			45,477
Construction in progress		682,314			755,037			108,747
		18,657,795			21,874,633			3,150,602
Accumulated depreciation		(8,030,668	)		(10,580,285	)		(1,523,878	)
		10,627,127			11,294,348			1,626,724