EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS - ADDITIONAL INFORMATION (Details)	12 Months Ended
Dec. 31, 2018 plan
Business Acquisition [Line Items]
Number of Qualified Defined Benefit Plans	4
Number of defined benefit plans	1
Number of defined contribution plans	7

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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