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LOANS AND ALLOWANCE FOR LOAN LOSSES (Allowance for Loan Loss Activity, by Portfolio Segment, Balances for Allowance for Credit Losses, and Loans Based on Impairment Methodology) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Allowance for loan losses: |  |
Balance, beginning of period | $ 160,540 | $ 42,294
Impact of ASC 326 adoption on non-PCD loans |  | 45,098
Impact of ASC 326 adoption on PCD loans |  | 2,386
Impact of ASC 326 adoption |  | 47,484
Loans charged off | (3,641) | (7,151)
Recoveries credited to allowance | 2,469 | 2,160
Provision charged to operations | (16,457) | 56,256
Balance, end of period | 142,911 | 141,043
Commercial Portfolio |  |
Allowance for loan losses: |  |
Balance, beginning of period | 117,403 | 30,941
Impact of ASC 326 adoption on non-PCD loans |  | 4,432
Impact of ASC 326 adoption on PCD loans |  | 1,752
Impact of ASC 326 adoption |  | 6,184
Loans charged off | (1,974) | (2,968)
Recoveries credited to allowance | 1,606 | 1,154
Provision charged to operations | (10,603) | 42,532
Balance, end of period | 106,432 | 77,843
Consumer Portfolio |  |
Allowance for loan losses: |  |
Balance, beginning of period | 43,137 | 11,353
Impact of ASC 326 adoption on non-PCD loans |  | 40,666
Impact of ASC 326 adoption on PCD loans |  | 634
Impact of ASC 326 adoption |  | 41,300
Loans charged off | (1,667) | (4,183)
Recoveries credited to allowance | 863 | 1,006
Provision charged to operations | (5,854) | 13,724
Balance, end of period | $ 36,479 | $ 63,200

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- Definition Financing Receivable Allowance For Credit Losses, impact of adopting new accounting standard + References No definition available. + Details
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- Definition Amount of increase in allowance for credit loss on financing receivable purchased with credit deterioration. + 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 (c) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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