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IMPACT OF THE HURRICANES IRMA AND MARIA (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 28, 2018
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
IMPACT OF THE HURRICANES IRMA AND MARIA        
Pre-tax loss   $ (1,618) $ (14,712)  
Insurance proceeds   $ 34,606    
HURRICANES IRMA AND MARIA        
IMPACT OF THE HURRICANES IRMA AND MARIA        
Pre-tax loss       $ 4,000
Loss on damaged assets from Hurricanes       35,400
Insurance proceeds $ 34,600      
Additional operating expenses       $ 3,200
Discounted rate used for cash flows       14.50%
Impairment of goodwill and intangible assets       $ 0