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Shareholders' Equity (Detail)
In Thousands, unless otherwise specified
Dec. 31, 2013
USD ($)
Dec. 31, 2013
CNY
Dec. 31, 2012
CNY
Cumulative Effect On Retained Earnings Net Of Tax [Abstract]      
PRC statutory reserve funds $ 53,059 321,206 277,812
Unreserved retained earnings 5,650,128 34,204,180 23,760,407
Total retained earnings $ 5,703,187 34,525,386 24,038,219