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TREASURY UNITS (Details)
1 Months Ended 6 Months Ended 94 Months Ended
Mar. 10, 2015
shares
Aug. 08, 2008
Aug. 20, 2007
shares
Aug. 05, 2015
USD ($)
$ / shares
shares
Jun. 30, 2015
USD ($)
$ / shares
shares
Jun. 30, 2014
USD ($)
shares
Jun. 30, 2015
USD ($)
$ / shares
shares
Jan. 03, 2012
Mar. 06, 2008
shares
Jan. 30, 2008
shares
Jan. 15, 2008
shares
Treasury units         53,825   53,825        
Period for repurchase of depository receipts 5 years 12 months 12 months                
Depository receipts authorized to be repurchased 2,000,000   300,000           1,500,000 900,000 600,000
Repurchase of depository receipts         30,080   1,316,996        
Repurchase price of depository receipts | $ / shares         $ 49.63   $ 26.20        
Repurchase price of units | $ / shares         $ 1,488.90            
Stock Buyback (in units)         1,253 664          
Total cost of repurchase | $         $ 1,879,001 $ 941,477 $ 37,046,000        
Repurchase of depository receipts | $         $ 1,505,645            
Subsequent event                      
Repurchase of depository receipts       4,241              
Repurchase price of depository receipts | $ / shares       $ 49.23              
Repurchase price of units | $ / shares       $ 1,476.99              
Repurchase of depository receipts | $       $ 215,102              
Class A                      
Treasury units         43,060   43,060        
Number of units in each depository receipt     0.1         0.03333      
Fixed distribution percentage of unit holders         80.00%            
Repurchase price of units | $ / shares             $ 786.00        
Total cost of repurchase | $         $ 1,505,645 757,246          
Class B                      
Treasury units         10,227   10,227        
Fixed distribution percentage of unit holders         19.00%            
Repurchase of depository receipts             2,690        
Repurchase price of units | $ / shares             $ 833.09        
Stock Buyback (in units)         238            
Total cost of repurchase | $         $ 354,688 175,019          
Class B | Subsequent event                      
Stock Buyback (in units)       33.6              
Total cost of repurchase | $       $ 49,589              
General Partnership                      
Treasury units         538   538        
Fixed distribution percentage of unit holders         1.00%            
Repurchase of depository receipts             142        
Stock Buyback (in units)         13            
Total cost of repurchase | $         $ 18,668 $ 9,212          
General Partnership | Subsequent event                      
Stock Buyback (in units)       1.8              
Total cost of repurchase | $       $ 2,610