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DERIVATIVES AND HEDGING ACTIVITIES - Master Netting Agreements (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Derivative [Line Items] |  |
Gross fair value, derivative assets | $ 16,784 | $ 35,889
Netting adjustments/cash collateral, derivative assets | (4,197) | (8,250)
Derivative assets | 12,587 | 27,639
Derivatives before netting, derivative Liabilities | (15,234) | (24,232)
Netting adjustments/cash collateral, derivative liabilities | 14,116 | 21,447
Derivative liabilities | (1,118) | (2,785)
Concentration of credit risk, master netting arrangements |  |
Derivative [Line Items] |  |
Right to reclaim cash in excess of fair value of derivative liability | $ 9,900 | $ 13,200

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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