DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Offsetting of Financial Assets and Derivative Assets
Gross Amounts of Recognized Assets	$ 15,486	$ 12,293
Net Amounts of Assets Presented in the Statements of Condition	15,486	12,293
Net Amount	15,486	12,293
Institutional counterparties
Offsetting of Financial Assets and Derivative Assets
Gross Amounts of Recognized Assets	42	23
Net Amounts of Assets Presented in the Statements of Condition	42	23
Net Amount	42	23
Commercial counterparties
Offsetting of Financial Assets and Derivative Assets
Gross Amounts of Recognized Assets	15,444	12,270
Net Amounts of Assets Presented in the Statements of Condition	15,444	12,270
Net Amount	$ 15,444	$ 12,270