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COMMITMENTS AND CONTINGENCIES (Schedule of Securities Pledged as Collateral) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Cash | $ 88,446 | $ 251,047
Loans | 4,644,395 | 4,715,230
Total pledged assets | 6,085,229 | 6,174,596
Available-for-sale Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 927,057 | 763,236
Held-to-maturity Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 425,331 | 445,083
Public deposits |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Cash | 0 | 0
Loans | 0 | 0
Total pledged assets | 1,086,728 | 906,313
Public deposits | Available-for-sale Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 662,373 | 469,864
Public deposits | Held-to-maturity Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 424,355 | 436,449
Repurchase agreements |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Cash | 0 | 0
Loans | 0 | 0
Total pledged assets | 131,669 | 116,876
Repurchase agreements | Available-for-sale Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 131,669 | 116,876
Repurchase agreements | Held-to-maturity Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 0 | 0
FHLB advances |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Cash | 0 | 0
Loans | 4,282,408 | 4,374,383
Total pledged assets | 4,328,384 | 4,426,706
FHLB advances | Available-for-sale Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 45,976 | 52,323
FHLB advances | Held-to-maturity Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 0 | 0
Derivatives |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Cash | 88,446 | 251,047
Loans | 0 | 0
Total pledged assets | 154,061 | 251,832
Derivatives | Available-for-sale Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 65,615 | 785
Derivatives | Held-to-maturity Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 0 | 0
Fed Funds |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Cash | 0 | 0
Loans | 361,987 | 340,847
Total pledged assets | 361,987 | 340,847
Fed Funds | Available-for-sale Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 0 | 0
Fed Funds | Held-to-maturity Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 0 | 0
Other purposes |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Cash | 0 | 0
Loans | 0 | 0
Total pledged assets | 22,400 | 132,022
Other purposes | Available-for-sale Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | 21,424 | 123,388
Other purposes | Held-to-maturity Securities |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Securities pledged | $ 976 | $ 8,634

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- Definition The carrying amount, as of the date of the latest financial statement presented, of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, repurchase agreements or other current or potential obligations, where the secured party does not have the right by contract or custom to sell or re-pledge the collateral and therefore are not reclassified and separately reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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- Definition The sum of the carrying amounts, as of the date of the latest financial statement presented, of loans receivable which are owned but transferred to serve as collateral for the payment of related debt obligations, primarily secured borrowings and repurchase agreements, and for which the transferees are not permitted to sell or re-pledge them to an unrelated party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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