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Federal Home Loan Bank Advances and Long-Term Debt - Schedule of Debt (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Short-Term Debt [Line Items] |  |
Total FHLB advances | $ 3,000,000 | $ 3,500,000
Weighted-average contractual interest rates for FHLB advances | 4.30% | 4.48%
Floating |  |
Short-Term Debt [Line Items] |  |
Total FHLB advances | $ 2,000,000 | $ 3,000,000
Fixed |  |
Short-Term Debt [Line Items] |  |
Total FHLB advances | $ 1,000,000 | $ 500,000
Minimum | Floating |  |
Short-Term Debt [Line Items] |  |
Interest Rates | 4.29% |
Minimum | Fixed |  |
Short-Term Debt [Line Items] |  |
Interest Rates | 3.87% |
Maximum | Floating |  |
Short-Term Debt [Line Items] |  |
Interest Rates | 4.38% |
Maximum | Fixed |  |
Short-Term Debt [Line Items] |  |
Interest Rates | 4.49% |
Junior Subordinated Debt | MCBI Statutory Trust I |  |
Short-Term Debt [Line Items] |  |
Debt instrument, basis spread on variable rate | 1.81% |
Parent company | Junior Subordinated Debt |  |
Short-Term Debt [Line Items] |  |
Weighted-average rate (as a percent) | 5.85% | 6.17%
Long-term debt total | $ 32,239 | $ 32,001

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478878/942-470-45-1 + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Rate of interest applicable on advance from Federal Home Loan Bank (FHLBank). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478878/942-470-45-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477734/942-470-50-3 + 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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