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Junior Subordinated Interest Deferrable Debentures - Key Information (Details) - USD ($) |  | 9 Months Ended |
--- | --- | --- | ---
Jul. 01, 2023 | Sep. 30, 2024 | Dec. 31, 2023
Junior subordinated interest deferrable debentures, major types of business trusts |  |  |
Junior subordinated deferrable interest debentures |  | $ 108,868,000 | $ 108,868,000
Trust IX |  |  |
Junior subordinated interest deferrable debentures, major types of business trusts |  |  |
Junior subordinated deferrable interest debentures |  | $ 41,238,000 |
Interest rate (as a percent) |  | 7.21% |
Interest rate index |  | SOFR |
Spread on interest rate index (as a percent) |  | 1.62% |
Trust X |  |  |
Junior subordinated interest deferrable debentures, major types of business trusts |  |  |
Junior subordinated deferrable interest debentures |  | $ 21,021,000 |
Interest rate (as a percent) |  | 7.16% |
Interest rate index |  | SOFR |
Spread on interest rate index (as a percent) |  | 1.65% |
Trust XI |  |  |
Junior subordinated interest deferrable debentures, major types of business trusts |  |  |
Junior subordinated deferrable interest debentures |  | $ 25,990,000 |
Interest rate (as a percent) |  | 7.21% |
Interest rate index |  | SOFR |
Spread on interest rate index (as a percent) |  | 1.62% |
Trust XII |  |  |
Junior subordinated interest deferrable debentures, major types of business trusts |  |  |
Junior subordinated deferrable interest debentures |  | $ 20,619,000 |
Interest rate (as a percent) |  | 6.73% |
Interest rate index |  | SOFR |
Spread on interest rate index (as a percent) |  | 1.45% |
Capital and Common Securities |  |  |
Junior subordinated interest deferrable debentures, major types of business trusts |  |  |
Spread on interest rate index (as a percent) | 0.26% |  |

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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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