Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT (Future Maturities of Long-Term Debt) (Details)

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LONG-TERM DEBT (Future Maturities of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Maturities of Long-term Debt [Abstract]    
2017 $ 53,345  
2018 321,147  
2019 41,753  
2020 81,552  
2021 112,920  
Thereafter 1,753,868  
Total $ 2,364,585 $ 2,080,413