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Future Minimum Payments Under Non-Cancelable Operating Leases with Initial Terms of One-Year or More (Detail)
In Thousands, unless otherwise specified
Dec. 31, 2012
USD ($)
Dec. 31, 2012
CNY
Operating Leased Assets [Line Items]    
2013 $ 197,062 1,227,718
2014 117,777 733,765
2015 96,714 602,537
2016 76,903 479,111
2017 34,996 218,027
Thereafter 22,218 138,422
Operating Leases, Future Minimum Payments Due, Total $ 545,670 3,399,580