PUERTO RICO HURRICANE IMPACT (Details) - Hurricane Maria bird in Millions, $ in Millions		3 Months Ended	12 Months Ended
	Sep. 20, 2017 bird	Dec. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)
Unusual or Infrequent Item, or Both [Line Items]
Number of years since last storm of similar magnitude	85 years
Number of birds lost | bird	2.1
Insurance proceeds			$ 5.5
Property and Casualty
Unusual or Infrequent Item, or Both [Line Items]
Estimated damages		$ 5.2
Business Interruption
Unusual or Infrequent Item, or Both [Line Items]
Estimated damages		$ 8.4