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INTANGIBLE ASSETS AND OTHER LONG-TERM ASSETS Table 2 (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Schedule of Other Long-Term Assets [Line Items]    
Ammonia pipeline linefill and tank heel inventory $ 35,178 $ 35,686
Deferred financing costs 29,939 32,957
Other 30,043 4,048
Other long-term assets, net 320,334 314,166
Axeon [Member]    
Schedule of Other Long-Term Assets [Line Items]    
Axeon Term Loan 170,352 169,235
Gulf Opportunity Zone revenue bonds    
Schedule of Other Long-Term Assets [Line Items]    
Amount remaining in trust for the Gulf Opportunity Zone revenue bonds (Note 13) $ 54,822 $ 72,240