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PARTNERS' CAPITAL (Details) (USD $)
 3 Months Ended 6 Months Ended 6 Months Ended 0 Months Ended 6 Months Ended 6 Months Ended
Sep. 30, 2014
Jun. 30, 2014
Jun. 30, 2013
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Mar. 31, 2013
Jun. 30, 2014
Limited Partner
item
Jan. 03, 2012
Class A
Jun. 30, 2014
Class A
Aug. 20, 2007
Class A
Jun. 30, 2014
Class B
Jun. 30, 2014
General Partnership
item
Number of classes of partners               2         1
Fixed distribution percentage of unit holders                   80.00%   19.00% 1.00%
Forward split of depositary receipts                 3        
Exchange ratio of depositary receipts for partnership units before adjustment                 10        
Exchange ratio of depositary receipts for partnership units after adjustment                 30        
Number of units in each depository receipt                 0.03333   0.1    
Quarterly distribution per unit (in dollars per unit)   $ 7.50 $ 7.50 $ 7.50 $ 7.50 $ 7.50 $ 7.50            
Quarterly distributions per depositary receipt (in dollars per share)   $ 0.25 $ 0.25 $ 0.25 $ 0.25 $ 0.25 $ 0.25            
Quarterly distribution per unit approved (in dollars per unit) $ 7.50                        
Quarterly distributions per depositary receipt approved (in dollars per share) $ 0.25                        
Distribution per unit (in dollars per unit)         $ 30.00                
Number of depositary units exchanged for partnership units under the terms of the deposit agreement                   30      
Earnings per depository receipt                          
Income per Depositary Receipt before Discontinued Operations (in dollars per share)   $ 0.07 $ 0.43                    
Income from Discontinued Operations (in dollars per share)   $ 0.00 $ 0.95                    
Net Income per Depositary Receipt after Discontinued Operations (in dollars per share)   $ 0.07 $ 1.38                    
Distributions per Depositary Receipt (in dollars per share)   $ 0.50 $ 0.50   $ 1.00