Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT - Maturities (Details)

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LONG-TERM DEBT - Maturities (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Debt Disclosure [Abstract]    
2015 $ 27,426us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths  
2016 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo  
2017 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree  
2018 0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour  
2019 85,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive  
Years subsequent to 2019 200,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive  
Long-term Debt $ 312,426us-gaap_LongTermDebt $ 285,311us-gaap_LongTermDebt