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Loans and Leases and the Allowance for Credit Losses - Additional Information (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 USD ($) Loan | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($) Loan
Loan and lease portfolio |  |  |
Net gains related to sales of residential mortgage loans | $ 100 | $ 2,100 |
Accrued interest receivable | 45,392 |  | $ 45,242
Revolving loans, converted to term loan during the period | $ 1,400 |  | 4,100
Number of days non-accrual loans are not past due | 30 days |  |
Recorded Investment | $ 63,700 |  | 70,000
Available commitments to lend additional funds on loans modified as TDR | 100 |  | $ 200
Consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure | $ 1,500 |  |
Minimum |  |  |
Loan and lease portfolio |  |  |
Default period past due following modification of loans in TDR (in days) | 60 days |  |
Consumer |  |  |
Loan and lease portfolio |  |  |
Number of loan concessions - COVID-19 | Loan | 1 |  | 11
Loan and lease modifications, amount - COVID-19 | $ 200 |  | $ 3,100
Commercial |  |  |
Loan and lease portfolio |  |  |
Number of loan concessions - COVID-19 | Loan | 8 |  | 8
Loan and lease modifications, amount - COVID-19 | $ 40,500 |  | $ 40,500
Pass | Residential Mortgage |  |  |
Loan and lease portfolio |  |  |
Number of days past due for loans and leases in classified credit quality indicator | 90 days |  |
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent) | 60.00% |  |
Pass | Home Equity |  |  |
Loan and lease portfolio |  |  |
Number of days past due for loans and leases in classified credit quality indicator | 90 days |  |
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent) | 60.00% |  |
Maximum current combined loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent) | 60.00% |  |
Classified | Consumer |  |  |
Loan and lease portfolio |  |  |
Number of days past due for loans and leases in classified credit quality indicator | 90 days |  |
Classified | Residential Mortgage |  |  |
Loan and lease portfolio |  |  |
Number of days past due for loans and leases in classified credit quality indicator | 90 days |  |
Classified | Home Equity |  |  |
Loan and lease portfolio |  |  |
Number of days past due for loans and leases in classified credit quality indicator | 90 days |  |
Accrued Interest Receivable |  |  |
Loan and lease portfolio |  |  |
Accrued interest receivable | $ 28,900 |  | $ 28,700

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- Definition The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123605502&loc=d3e21310-158488 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123605502&loc=d3e21286-158488 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123605549&loc=d3e21493-158490 + Details
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