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Changes In Carrying Amount Of Goodwill (Detail) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 USD ($)	Dec. 31, 2011 CNY	Dec. 31, 2010 CNY
Indefinite-lived Intangible Assets by Major Class [Line Items]
Goodwill, Beginning Balance	$ 10,119	63,686	63,691
Goodwill acquired	392,265	2,468,874	0
Impairment losses	(17,956)	(113,011)	0
Foreign currency translation adjustment	(1)	(7)	(5)
Goodwill, Ending Balance	$ 384,427	2,419,542	63,686

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Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

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