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ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Allowance for loan losses by portfolio segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  | $ 71,713 |  |  |  | $ 61,408 |  |  |
Provision for credit losses |  | 1,300 | [1] |  |  | 1,077 | [2] |  |
Loans charged-off |  | (90) |  |  |  | (593) |  |  |
Recoveries |  | 125 |  |  |  | 2,106 |  |  |
Net loans (charged-off) recovered |  | 35 |  |  |  | 1,513 |  |  |
Ending balance | [3] | 73,048 |  |  |  | 73,048 |  |  |
Prior to adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | $ 59,019 |  | 61,408 | [3] | $ 50,652 |
Provision for credit losses |  |  |  | 1,750 | [1] |  |  | 13,850 | [2]
Loans charged-off |  |  |  | (305) |  |  |  | (4,565) |
Recoveries |  |  |  | 283 |  |  |  | 810 |
Net loans charged-off |  |  |  | (22) |  |  |  | (3,755) |
Ending balance |  |  |  | 60,747 |  |  |  | 60,747 |
Impact of ASC 326 Adoption | ASU 2016-13 |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | 9,050 |  |  |
Commercial and industrial loans |  |  |  |  |  |  |  |  |
Prior to adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 26,744 |  | 28,333 |  | 25,789 |
Provision for credit losses |  |  |  | 1,574 |  |  |  | 6,264 |
Loans charged-off |  |  |  | (6) |  |  |  | (4,037) |
Recoveries |  |  |  | 51 |  |  |  | 347 |
Net loans charged-off |  |  |  | 45 |  |  |  | (3,690) |
Ending balance |  |  |  | 28,363 |  |  |  | 28,363 |
Commercial and industrial loans | Commercial Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  | 33,130 |  |  |  | 28,333 |  |  |
Provision for credit losses |  | 3,507 |  |  |  | 2,780 |  |  |
Loans charged-off |  | (5) |  |  |  | (254) |  |  |
Recoveries |  | 44 |  |  |  | 1,505 |  |  |
Net loans (charged-off) recovered |  | 39 |  |  |  | 1,251 |  |  |
Ending balance |  | 36,676 |  |  |  | 36,676 |  |  |
Commercial and industrial loans | Impact of ASC 326 Adoption | ASU 2016-13 | Commercial Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | 4,312 |  |  |
Commercial real estate and multi-family residential loans |  |  |  |  |  |  |  |  |
Prior to adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 21,063 |  | 22,907 |  | 15,796 |
Provision for credit losses |  |  |  | 175 |  |  |  | 5,312 |
Loans charged-off |  |  |  | 0 |  |  |  | 0 |
Recoveries |  |  |  | 177 |  |  |  | 307 |
Net loans charged-off |  |  |  | 177 |  |  |  | 307 |
Ending balance |  |  |  | 21,415 |  |  |  | 21,415 |
Commercial real estate and multi-family residential loans | Commercial Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  | 28,291 |  |  |  | 22,907 |  |  |
Provision for credit losses |  | (1,545) |  |  |  | (420) |  |  |
Loans charged-off |  | 0 |  |  |  | (71) |  |  |
Recoveries |  | 0 |  |  |  | 14 |  |  |
Net loans (charged-off) recovered |  | 0 |  |  |  | (57) |  |  |
Ending balance |  | 26,746 |  |  |  | 26,746 |  |  |
Commercial real estate and multi-family residential loans | Impact of ASC 326 Adoption | ASU 2016-13 | Commercial Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | 4,316 |  |  |
Agri-business and agricultural loans |  |  |  |  |  |  |  |  |
Prior to adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 3,408 |  | 3,043 |  | 3,869 |
Provision for credit losses |  |  |  | (314) |  |  |  | (780) |
Loans charged-off |  |  |  | 0 |  |  |  | 0 |
Recoveries |  |  |  | 3 |  |  |  | 8 |
Net loans charged-off |  |  |  | 3 |  |  |  | 8 |
Ending balance |  |  |  | 3,097 |  |  |  | 3,097 |
Agri-business and agricultural loans | Commercial Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  | 3,930 |  |  |  | 3,043 |  |  |
Provision for credit losses |  | (244) |  |  |  | (737) |  |  |
Loans charged-off |  | 0 |  |  |  | 0 |  |  |
Recoveries |  | 0 |  |  |  | 320 |  |  |
Net loans (charged-off) recovered |  | 0 |  |  |  | 320 |  |  |
Ending balance |  | 3,686 |  |  |  | 3,686 |  |  |
Agri-business and agricultural loans | Impact of ASC 326 Adoption | ASU 2016-13 | Commercial Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | 1,060 |  |  |
Other Commercial |  |  |  |  |  |  |  |  |
Prior to adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 542 |  | 416 |  | 447 |
Provision for credit losses |  |  |  | 30 |  |  |  | 125 |
Loans charged-off |  |  |  | 0 |  |  |  | 0 |
Recoveries |  |  |  | 0 |  |  |  | 0 |
Net loans charged-off |  |  |  | 0 |  |  |  | 0 |
Ending balance |  |  |  | 572 |  |  |  | 572 |
Other Commercial | Commercial Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  | 1,298 |  |  |  | 416 |  |  |
Provision for credit losses |  | 89 |  |  |  | 30 |  |  |
Loans charged-off |  | 0 |  |  |  | 0 |  |  |
Recoveries |  | 0 |  |  |  | 0 |  |  |
Net loans (charged-off) recovered |  | 0 |  |  |  | 0 |  |  |
Ending balance |  | 1,387 |  |  |  | 1,387 |  |  |
Other Commercial | Impact of ASC 326 Adoption | ASU 2016-13 | Commercial Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | 941 |  |  |
Consumer 1-4 family loans |  |  |  |  |  |  |  |  |
Prior to adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 3,434 |  | 2,619 |  | 2,086 |
Provision for credit losses |  |  |  | (50) |  |  |  | 1,298 |
Loans charged-off |  |  |  | (70) |  |  |  | (83) |
Recoveries |  |  |  | 4 |  |  |  | 17 |
Net loans charged-off |  |  |  | (66) |  |  |  | (66) |
Ending balance |  |  |  | 3,318 |  |  |  | 3,318 |
Consumer 1-4 family loans | Consumer Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  | 3,165 |  |  |  | 2,619 |  |  |
Provision for credit losses |  | (265) |  |  |  | (719) |  |  |
Loans charged-off |  | (13) |  |  |  | (51) |  |  |
Recoveries |  | 14 |  |  |  | 99 |  |  |
Net loans (charged-off) recovered |  | 1 |  |  |  | 48 |  |  |
Ending balance |  | 2,901 |  |  |  | 2,901 |  |  |
Consumer 1-4 family loans | Impact of ASC 326 Adoption | ASU 2016-13 | Consumer Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | 953 |  |  |
Other Consumer |  |  |  |  |  |  |  |  |
Prior to adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 774 |  | 951 |  | 345 |
Provision for credit losses |  |  |  | 237 |  |  |  | 799 |
Loans charged-off |  |  |  | (229) |  |  |  | (445) |
Recoveries |  |  |  | 48 |  |  |  | 131 |
Net loans charged-off |  |  |  | (181) |  |  |  | (314) |
Ending balance |  |  |  | 830 |  |  |  | 830 |
Other Consumer | Consumer Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  | 1,393 |  |  |  | 951 |  |  |
Provision for credit losses |  | (116) |  |  |  | 21 |  |  |
Loans charged-off |  | (72) |  |  |  | (217) |  |  |
Recoveries |  | 67 |  |  |  | 168 |  |  |
Net loans (charged-off) recovered |  | (5) |  |  |  | (49) |  |  |
Ending balance |  | 1,272 |  |  |  | 1,272 |  |  |
Other Consumer | Impact of ASC 326 Adoption | ASU 2016-13 | Consumer Portfolio Segment |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | 349 |  |  |
Unallocated |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  | 506 |  |  |  | 3,139 |  |  |
Provision for credit losses |  | (126) |  |  |  | 122 |  |  |
Loans charged-off |  | 0 |  |  |  | 0 |  |  |
Recoveries |  | 0 |  |  |  | 0 |  |  |
Net loans (charged-off) recovered |  | 0 |  |  |  | 0 |  |  |
Ending balance |  | $ 380 |  |  |  | 380 |  |  |
Prior to adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  | 3,054 |  | 3,139 |  | 2,320 |
Provision for credit losses |  |  |  | 98 |  |  |  | 832 |
Loans charged-off |  |  |  | 0 |  |  |  | 0 |
Recoveries |  |  |  | 0 |  |  |  | 0 |
Net loans charged-off |  |  |  | 0 |  |  |  | 0 |
Ending balance |  |  |  | $ 3,152 |  |  |  | $ 3,152 |
Unallocated | Impact of ASC 326 Adoption | ASU 2016-13 |  |  |  |  |  |  |  |  |
Post adoption of ASC 326 |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | $ (2,881) |  |  |
[1] | Beginning January 1, 2021 calculation is based on the current expected credit loss methodology. Prior to January 1, 2021 calculation was based on the incurred loss methodology.
[2] | Beginning January 1, 2021 calculation is based on the current expected credit loss methodology. Prior to January 1, 2021 calculation was based on the incurred loss methodology.
[3] | Beginning January 1, 2021 calculation is based on the current expected credit loss methodology. Prior to January 1, 2021 calculation was based on the incurred loss methodology.

X
- Definition Reflects the amount of loans and leases that have been removed after recoveries, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities. + References No definition available. + Details
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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
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- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
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