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FAIR VALUE MEASUREMENT (Details 2)
1 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
eHi
USD ($)
Oct. 31, 2013
Easy Go
USD ($)
Nov. 30, 2010
Dining Secretary
USD ($)
Jun. 30, 2013
Happy City
USD ($)
Dec. 31, 2013
Available-for-sale securities
eHi
Unobservable inputs (Level 3)
USD ($)
Dec. 31, 2013
Available-for-sale securities
eHi
Unobservable inputs (Level 3)
CNY
Dec. 31, 2013
Available-for-sale securities
eHi
Unobservable inputs (Level 3)
Series E Preferred Shares
CNY
Dec. 31, 2013
Available-for-sale securities
Easy Go
Unobservable inputs (Level 3)
CNY
Dec. 31, 2013
Available-for-sale securities
Easy Go
Unobservable inputs (Level 3)
USD ($)
Dec. 31, 2013
Available-for-sale securities
Easy Go
Unobservable inputs (Level 3)
Series B Preferred Shares
CNY
Dec. 31, 2013
Available-for-sale securities
Dining Secretary
Unobservable inputs (Level 3)
CNY
Dec. 31, 2012
Available-for-sale securities
Dining Secretary
Unobservable inputs (Level 3)
CNY
Dec. 31, 2013
Available-for-sale securities
Dining Secretary
Unobservable inputs (Level 3)
USD ($)
Dec. 31, 2013
Available-for-sale securities
Happy City
Unobservable inputs (Level 3)
CNY
Dec. 31, 2013
Available-for-sale securities
Happy City
Unobservable inputs (Level 3)
USD ($)
Dec. 31, 2013
Available-for-sale securities
Happy City
Unobservable inputs (Level 3)
Series A Preferred Shares
CNY
Roll forward of Level 3 investment                                
Fair value of Level 3 investment, beginning balance         $ 94,318,772 570,977,550     $ 23,771,275   60,234,118 65,414,773 $ 9,290,577   $ 6,171,156  
Investment in preferred shares (94,050,000) (23,000,000) (10,000,000) (6,000,000)     570,977,550     139,633,000           36,715,800
Change in fair value of investment               4,271,165     (2,227,753) (4,542,655)   642,527    
Effect of exchange rate change                     (1,764,000) (638,000)        
Fair value of Level 3 investment, ending balance         $ 94,318,772 570,977,550   143,904,165 $ 23,771,275   56,242,365 60,234,118 $ 9,290,577 37,358,327 $ 6,171,156