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DERIVATIVE INSTRUMENTS (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Derivative [Line Items]    
Expected to reclassify in the next twelve months from other comprehensive income into earning $ 300,000  
Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative liability, Fair Value 1,689,000 $ 0
Interest Rate Swap    
Derivative [Line Items]    
Aggregate notional amount 300,000,000  
Decrease in notional amount over time $ 50,000,000  
Contract fixed interest rate 2.63%  
Interest Rate Swap | Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative liability, Fair Value   $ 0
Interest Rate Swap | Designated as Hedging Instrument | Other current liabilities    
Derivative [Line Items]    
Derivative liability, Fair Value $ 255,000  
Interest Rate Swap | Designated as Hedging Instrument | Other noncurrent liabilities    
Derivative [Line Items]    
Derivative liability, Fair Value 1,434,000  
Interest Rate Swap | Through December 2019    
Derivative [Line Items]    
Aggregate notional amount 300,000,000  
Interest Rate Swap | January 2020 - December 2020    
Derivative [Line Items]    
Aggregate notional amount 250,000,000  
Interest Rate Swap | January 2021 - December 2021    
Derivative [Line Items]    
Aggregate notional amount 200,000,000  
Interest Rate Swap | January 2022 - December 2022    
Derivative [Line Items]    
Aggregate notional amount 150,000,000  
Interest Rate Swap | January 2023    
Derivative [Line Items]    
Aggregate notional amount $ 100,000,000