Short-Term Borrowings and Long-Term Debt (Details) - USD ($) $ in Thousands |
Jun. 30, 2024 |
Dec. 31, 2023 |
May 06, 2021 |
Jan. 31, 2014 |
|---|---|---|---|---|
| Short-Term Debt [Line Items] | ||||
| Total short-term borrowings | $ 1,675,000 | $ 1,500,000 | ||
| Debt Instrument [Line Items] | ||||
| Long-term debt | 659,997 | 859,147 | ||
| FHLB Borrowings | ||||
| Short-Term Debt [Line Items] | ||||
| Total short-term borrowings | 1,675,000 | 1,500,000 | ||
| Senior Unsecured Credit-Linked Notes, Due 2024 | ||||
| Debt Instrument [Line Items] | ||||
| Senior unsecured credit-linked notes | 0 | 199,499 | ||
| 5.75% Subordinated Notes, Due 2026 | ||||
| Debt Instrument [Line Items] | ||||
| Interest rate | 5.25% | |||
| Trust preferred securities issued | 174,587 | 174,457 | ||
| 4.00% Subordinated Notes, Due 2031 | ||||
| Debt Instrument [Line Items] | ||||
| Interest rate | 4.00% | |||
| Trust preferred securities issued | 372,004 | 371,785 | ||
| Floating Rate Subordinated Debentures, Due 2032 to 2036 | ||||
| Debt Instrument [Line Items] | ||||
| Trust preferred securities issued | $ 113,406 | $ 113,406 |
| X | ||||||||||
- Definition Amount of short-term and long-term debt and lease obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|