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JEWELRY PARK - Additional Information (Detail)
¥ in Thousands
1 Months Ended 12 Months Ended
Jun. 27, 2016
USD ($)
Jun. 27, 2016
CNY (¥)
Dec. 31, 2016
USD ($)
Dec. 31, 2016
CNY (¥)
Dec. 31, 2015
USD ($)
Dec. 31, 2016
CNY (¥)
Jun. 27, 2016
CNY (¥)
Jun. 24, 2016
USD ($)
Jun. 24, 2016
CNY (¥)
Oct. 23, 2013
a
ft²
Deposit On Land Use Right [Line Items]                    
Area of Land | a                   16.5
Interest Costs Capitalized $ 12,000,000 ¥ 80,000                
Construction In Progress 153,400,000   $ 0   $ 105,844,259   ¥ 1,020,000      
Repayments of Advances for Construction 87,300,000 580,000 19,415,722   52,775,958          
Construction Payable, Current | $     0   23,876,642          
Disposal Group, Including Discontinued Operation, Consideration 162,600,000           1,080      
Gain (Loss) on Disposition of Business | $     63,212,496   0          
Disposal Group, Including Discontinued Operation, Assets     162,551,716   115,141,022 ¥ 1,080,000        
Disposal Group, Including Discontinued Operation, Liabilities     $ 225,764,212   $ 46,058,813 ¥ 1,500,000        
Wuhan Wansheng [Member]                    
Deposit On Land Use Right [Line Items]                    
Construction Payable, Current               $ 54,200,000 ¥ 360,000  
Wuhan Lianfuda Investment Management Co., Ltd. [Member]                    
Deposit On Land Use Right [Line Items]                    
Disposal Group, Including Discontinued Operation, Consideration | ¥             1,140,000      
Disposal Group ,Share Acquisition Fee And Construction Fess Payable 92,200,000           640,000      
Disposal Group Business Transfer Fee Payable $ 72,000,000           ¥ 500,000      
Equity Method Investment, Ownership Percentage 60.00%   60.00%     60.00% 60.00%      
Business Combination, Consideration Transferred $ 54,200,000 ¥ 360,000 $ 54,200,000 ¥ 360,000            
Development and Construction                    
Deposit On Land Use Right [Line Items]                    
Area of Land | m²                   192,149
Commercial Properties                    
Deposit On Land Use Right [Line Items]                    
Area of Land | ft²                   2,068,000
Land Use Right                    
Deposit On Land Use Right [Line Items]                    
Area of Land | ft²                   717,598
Long-term Purchase Commitment, Amount     $ 144,000,000 ¥ 1,000,000            
Deposit On Land Use Right $ 164,200,000             $ 9,100,000 ¥ 60,400  
Land Use Right | Wuhan Kingold                    
Deposit On Land Use Right [Line Items]                    
Area of Land | m²                   66,667