v3.4.0.3
FAIR VALUE MEASUREMENTS Narrative (Details)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Feb. 26, 2014
USD ($)
Dec. 31, 2013
USD ($)
Axeon [Member]        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Equity method losses in excess of investment     $ 21,300,000  
Investment in joint venture       $ 0
Axeon [Member]        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Maximum Amount Guarantees $ 125,000,000      
Term Loan Receivable 190,000,000      
Carrying amount, Axeon Term Loan 170,055,000 $ 170,352,000    
Guarantee liability 1,400,000      
Axeon [Member] | Financial Standby Letter of Credit [Member]        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Amount of Guarantees Provided 19,700,000      
Axeon [Member] | Financial Guarantee [Member]        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Amount of Guarantees Provided $ 59,300,000 $ 71,900,000    
Number of Guarantees with Unlimited Exposure 1 2    
Axeon [Member]        
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]        
Ownership Percentage of Entity Sold     50.00%