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COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($) $ in Millions | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Other Commitments [Line Items] |  |
Daily average required reserves | $ 75.3 |
Deposits with other financial institutions | 74.4 |
Uninsured deposits with other financial institutions | 33.1 |
Cash Flow Hedges |  |
Other Commitments [Line Items] |  |
Deposits with other financial institutions serves as collateral | 38.9 |
Reserve for Off-balance Sheet Activities |  |
Other Commitments [Line Items] |  |
Off-balance sheet credit risks, amount, liability | $ 3.4 | $ 1.4

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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