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Subordinated Notes and Junior Subordinated Debentures - Junior Subordinated Debentures by Issuance (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Total liability, at par |  | $ 87,000 | $ 87,000
Total liability, at carrying value |  | $ 70,890 | 70,452
Investment, Variable Interest Rate, Type [Extensible Enumeration] |  | Three Month SOFR and Spread Adjustment [Member] |
Metropolitan Statutory Trust 1 |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Total liability, at par |  | $ 35,000 | 35,000
First Evanston Bancorp Trust I |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Total liability, at par |  | 10,000 | 10,000
AmeriMark Capital Trust One |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Total liability, at par |  | 5,000 | 5,000
Inland Bancorp Trust Two |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Total liability, at par |  | 10,000 | 10,000
Inland Bancorp Trust Three |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Total liability, at par |  | 10,000 | 10,000
Inland Bancorp Trust Four |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Total liability, at par |  | 7,000 | 7,000
Inland Bancorp Trust Five |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Total liability, at par |  | 10,000 | 10,000
Junior Subordinated Debentures |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Discount |  | $ (16,110) | $ (16,548)
Junior Subordinated Debentures | Metropolitan Statutory Trust 1 |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Stated Maturity |  | Mar. 17, 2034 |
Contractual Rate |  | 7.40% | 8.43%
Investment, Variable Interest Rate, Type [Extensible Enumeration] |  | Secured Overnight Financing Rate Plus Spread Adjustment |
Junior Subordinated Debentures | Metropolitan Statutory Trust 1 | Secured Overnight Financing Rate Plus Spread Adjustment |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Interest Rate Spread, Description | [1] | SOFR + spread adjustment + 2.79% |
Interest Rate Spread | [1] | 2.79% |
Junior Subordinated Debentures | First Evanston Bancorp Trust I |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Stated Maturity |  | Mar. 15, 2035 |
Contractual Rate |  | 6.40% | 7.43%
Investment, Variable Interest Rate, Type [Extensible Enumeration] |  | Secured Overnight Financing Rate Plus Spread Adjustment |
Junior Subordinated Debentures | First Evanston Bancorp Trust I | Secured Overnight Financing Rate Plus Spread Adjustment |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Interest Rate Spread, Description | [1] | SOFR + spread adjustment + 1.78% |
Interest Rate Spread | [1] | 1.78% |
Junior Subordinated Debentures | AmeriMark Capital Trust One |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Stated Maturity |  | Apr. 23, 2034 |
Contractual Rate |  | 7.64% |
Investment, Variable Interest Rate, Type [Extensible Enumeration] |  | Secured Overnight Financing Rate Plus Spread Adjustment |
Junior Subordinated Debentures | AmeriMark Capital Trust One | Secured Overnight Financing Rate Plus Spread Adjustment |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Interest Rate Spread, Description | [1] | SOFR + spread adjustment + 2.75% |
Interest Rate Spread | [1] | 2.75% |
Junior Subordinated Debentures | Inland Bancorp Trust Two |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Stated Maturity |  | Sep. 15, 2035 |
Contractual Rate |  | 6.22% |
Investment, Variable Interest Rate, Type [Extensible Enumeration] |  | Secured Overnight Financing Rate Plus Spread Adjustment |
Junior Subordinated Debentures | Inland Bancorp Trust Two | Secured Overnight Financing Rate Plus Spread Adjustment |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Interest Rate Spread, Description | [1] | SOFR + spread adjustment + 1.60% |
Interest Rate Spread | [1] | 1.60% |
Junior Subordinated Debentures | Inland Bancorp Trust Three |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Stated Maturity |  | Dec. 15, 2036 |
Contractual Rate |  | 6.27% |
Investment, Variable Interest Rate, Type [Extensible Enumeration] |  | Secured Overnight Financing Rate Plus Spread Adjustment |
Junior Subordinated Debentures | Inland Bancorp Trust Three | Secured Overnight Financing Rate Plus Spread Adjustment |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Interest Rate Spread, Description | [1] | SOFR + spread adjustment + 1.65% |
Interest Rate Spread | [1] | 1.65% |
Junior Subordinated Debentures | Inland Bancorp Trust Four |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Stated Maturity |  | Jun. 06, 2037 |
Contractual Rate |  | 6.33% |
Investment, Variable Interest Rate, Type [Extensible Enumeration] |  | Secured Overnight Financing Rate Plus Spread Adjustment |
Junior Subordinated Debentures | Inland Bancorp Trust Four | Secured Overnight Financing Rate Plus Spread Adjustment |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Interest Rate Spread, Description | [1] | SOFR + spread adjustment + 1.62% |
Interest Rate Spread | [1] | 1.62% |
Junior Subordinated Debentures | Inland Bancorp Trust Five |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Stated Maturity |  | Sep. 15, 2037 |
Contractual Rate |  | 6.04% |
Investment, Variable Interest Rate, Type [Extensible Enumeration] |  | Secured Overnight Financing Rate Plus Spread Adjustment |
Junior Subordinated Debentures | Inland Bancorp Trust Five | Secured Overnight Financing Rate Plus Spread Adjustment |  |  |
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items] |  |  |
Interest Rate Spread, Description | [1] | SOFR + spread adjustment + 1.42% |
Interest Rate Spread | [1] | 1.42% |
[1] | (1) SOFR is three month SOFR and the spread adjustment is 0.26161%

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482949/835-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482900/835-30-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-6 + Details
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- Definition Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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