DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Schedule of Derivative Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivative Assets
Gross Amount	$ 680	$ 663
Net Amounts Presented in the Statement of Financial Position	680	663
Net Amount	680	663
Derivative Liabilities
Gross Amount	5,882	17,913
Net Amounts Presented in the Statement of Financial Position	5,882	17,913
Net Amount	$ 5,882	$ 17,913