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ACCUMULATED OTHER COMPREHENSIVE LOSS (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2017
USD ($)
Changes in accumulated other comprehensive income by component  
Beginning balance $ (1,850)
Ending balance 3
Unrealized losses on interest rate swaps  
Changes in accumulated other comprehensive income by component  
Beginning balance (1,850)
Other comprehensive loss before reclassifications 192
Amounts reclassified from accumulated other comprehensive loss 1,661
Net current-period other comprehensive income (loss) 1,853
Ending balance $ 3