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v3.22.1

Allowance for Credit Losses (Narrative) (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2022 USD ($) contract | Mar. 31, 2021 USD ($) contract | Mar. 31, 2022 USD ($) contract | Mar. 31, 2021 USD ($) contract | Dec. 31, 2021 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Accrued interest related to financial assets held at amortized cost | $ 124,400,000 | $ 128,800,000 | $ 124,400,000 | $ 128,800,000 | $ 117,400,000
Nonaccrual loans with no related allowance for credit losses | 27,600,000 |  | $ 27,600,000 |  |
Loans reasonably expected to be modified into TDRs | 218,000 |  |  |  |
Provision for (reversal of) credit losses | 4,025,000 | $ (45,386,000) |  |  |
Loan net charge-offs | 2,500,000 |  |  |  |
Provision for credit losses | $ 159,000 |  |  |  |
TDRs, count | contract | 13 | 20 | 57 | 106 |
Foreclosed residential real estate properties | $ 1,100,000 |  | $ 1,100,000 |  |
TDRs, balance | $ 3,097,000 | $ 2,126,000 | 14,839,000 | $ 24,201,000 |
Weighted average extension term | 71 months | 110 months |  |  |
Weighted average decrease in stated interest rate | 0.79% | 1.27% |  |  |
Interest-only payment terms | 4 months | 6 months |  |  |
Loan forgiveness | $ 0 | $ 0 |  |  |
Financing Receivable |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Loans modified in TDRs | $ 44,900,000 |  | 44,900,000 |  |
TDRs, count | contract | 227 |  |  |  |
Allowance for loan losses related to impaired loans | $ 2,600,000 |  | 2,600,000 |  |
Residential Real Estate | Financing Receivable |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Recorded investment, foreclosure proceedings in process | $ 7,700,000 | $ 13,800,000 | $ 7,700,000 | $ 13,800,000 |

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- Definition Amount of expense (reversal of expense) for expected credit loss on investment in debt security measured at amortized cost (held-to-maturity). + 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 (b) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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- Definition Amount, after allowance for credit loss, of accrued interest on financial asset measured at amortized cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL120267960-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL120267845-210446 + Details
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