Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2016

Equity [Abstract]

Retained Earnings

The reserves are not allowed to be transferred to the Company in terms of cash dividends, loans or advances, nor are they allowed for distribution except under liquidation.

	As of December 31,
	2015		2016		2016
	RMB		RMB		US$
	(In thousands)
PRC statutory reserve funds		417,911		441,391		63,574
Unreserved retained earnings		74,241,444		85,292,315		12,284,648
Total retained earnings		74,659,355		85,733,706		12,348,222

Changes in Accumulated Other Comprehensive Income (Loss) by Component, Net of Tax

The changes in accumulated other comprehensive income (loss) by component, net of tax, were as follows:

	Foreign currency translation adjustment			Unrealized gains on available-for- sale investments			Total
	RMB			RMB			RMB
	(In thousands)
Balance at December 31, 2013		158,355			22,903			181,258
Other comprehensive income (loss) before reclassification		(422,925	)		27,327			(395,598	)
Amounts reclassified from accumulated other comprehensive income		—			(45,025	)		(45,025	)
Net current-period other comprehensive loss		(422,925	)		(17,698	)		(440,623	)
Other comprehensive income attribute to noncontrolling interests and redeemable noncontrolling interests		(20,153	)		—			(20,153	)
Balance at December 31, 2014		(284,723	)		5,205			(279,518	)
Other comprehensive income (loss) before reclassification		(644,896	)		489,010			(155,886	)
Amounts reclassified from accumulated other comprehensive income		—			(194,451	)		(194,451	)
Net current-period other comprehensive income (loss)		(644,896	)		294,559			(350,337	)
Other comprehensive income attribute to noncontrolling interests and redeemable noncontrolling interests		(176,201	)		—			(176,201	)
Balance at December 31, 2015		(1,105,820	)		299,764			(806,056	)
Other comprehensive income (loss) before reclassification		(589,870	)		480,102			(109,768	)
Amounts reclassified from accumulated other comprehensive income		—			(540,495	)		(540,495	)
Net current-period other comprehensive loss		(589,870	)		(60,393	)		(650,263	)
Other comprehensive income attribute to noncontrolling interests and redeemable noncontrolling interests		(326,640	)		(7	)		(326,647	)
Balance at December 31, 2016		(2,022,330	)		239,364			(1,782,966	)
Balance at December 31, 2016, in US$		(291,277	)		34,476			(256,801	)

Tax Effect Allocated to Each Component of Other Comprehensive Income

The following table sets forth the tax effect allocated to each component of other comprehensive income for the years ended December 31, 2015 and 2016:

	For the years ended December 31,
	2014		2015			2016			2016
	RMB		RMB			RMB			US$
			(In thousands)
Unrealized gains on available-for-sale investments
Unrealized holding gains (losses) during the year		1,680		(68,303	)		(119,708	)		(17,242	)
Reclassified for gains realized		—		28,885			110,418			15,904
Net unrealized gains (losses)		1,680		(39,418	)		(9,290	)		(1,338	)
Other comprehensive income (loss)		1,680		(39,418	)		(9,290	)		(1,338	)