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COMMITMENTS AND CONTINGENCIES (Details) (USD $)
1 Months Ended 1 Months Ended 1 Months Ended 6 Months Ended
Jun. 30, 2013
unions
sites
Dec. 31, 2012
Jun. 30, 2013
Letter of Credit, Developer [Member]
Jun. 30, 2013
Standby Letter of Credit [Member]
Jun. 30, 2013
Letter of Credit, Separate Facility [Member]
Feb. 28, 2011
ACR Energy Partners LLC [Member]
Jun. 30, 2013
ACR Energy Partners LLC [Member]
Jun. 30, 2013
Energenic [Member]
May 31, 2012
Energenic [Member]
UMM Energy Partners, LLC [Member]
May 31, 2012
Energenic [Member]
UMM Energy Partners, LLC [Member]
Maximum [Member]
Jun. 30, 2013
Parental Guarantee [Member]
Jun. 30, 2013
LVE Energy Partners, LLC (LVE) [Member]
Apr. 30, 2007
Marina Energy LLC [Member]
LVE Energy Partners, LLC (LVE) [Member]
Jun. 30, 2013
Marina Energy LLC [Member]
LVE Energy Partners, LLC (LVE) [Member]
LVE Energy Partners [Member]
Guarantees [Abstract]                            
Liability recorded related to guarantees $ 300,000                          
Equity interest (in hundredths)             50.00% 50.00%       50.00% 50.00%  
Contract with a resort developer (in years)           20 years             25 years  
Proceeds from Divestiture of Interest in Joint Venture                           57,600,000
Notes receivable - affiliate 5,287,000 39,495,000                       7,000,000
Maximum capital risk                           1,800,000
Maximum amount of obligation under guarantee contracts 4,200,000                         3,200,000
Letter of credit provided 660,000,000   5,000,000 27,600,000 87,600,000                  
Guaranteed amount                     5,100,000      
Contract term                 30 years          
Capital contribution obligation, joint venture                 10,000,000          
Annual obligations under the agreement                   2,200,000        
Collective bargaining agreements [Abstract]                            
Percentage of personnel represented by collective bargaining agreements (in hundredths) 45.00%                          
Number of unions (in unions) 2                          
Pending litigation [Abstract]                            
Estimated litigation liability $ 3,200,000 $ 3,200,000                        
Environmental remediation costs [Abstract]                            
Number of sites for environmental cleanup (in number of sites) 12