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Borrowings and Subordinated Debentures - Subordinated Debentures (Details) $ in Thousands, € in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2024 EUR (€) | Dec. 31, 2023 USD ($)
Subordinated Borrowing [Line Items] |  |  |
Subordinated debt | $ 941,923 |  | $ 936,599
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 5.06% | 5.06% | 4.92%
Subordinated Debentures, Gross | $ 1,012,187 |  | $ 1,013,419
Debt Issuance Costs, Gross | $ 3,800 |  |
Trust Preferred Securities Two Thousand Six Series Three |  |  |
Subordinated Borrowing [Line Items] |  |  |
Liability, Reporting Currency Denominated, Value | € |  | € 25.8 |
Subordinated notes due May 2031 |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.52% |  |
Euribor Rate [Member] | Trust Preferred Securities Two Thousand Six Series Three |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.05% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Subordinated Debt Trust V Due September 2033 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 3.10% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Subordinated Debt Trust VI Due September 2033 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 3.05% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Subordinated Debt Trust CII Due September 2033 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.95% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Subordinated Debt Trust VII Due April 2034 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.75% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Subordinated Debt Trust CIII Due September 2035 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.69% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Subordinated Debt Trust FCCI Due March 2037 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.60% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Subordinated Debt Trust FCBI Due December 2035 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.55% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Trust Preferred Securities Two Thousand Five Series One [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.95% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Trust Preferred Securities Two Thousand Five Series Two [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.95% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Two Thousand Six One Term Debt Securitization [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.95% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Trust Preferred Securities Two Thousand Six Series Five [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.95% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Two Thousand Seven One Term Debt Securitization [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.95% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | PMB Statutory Trust III |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 3.40% |  |
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | PMB CapitalTrust III |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.00% |  |
Prime Rate | Two Thousand Six Two Term Debt Securitization [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.95% |  |
Prime Rate | Trust Preferred Securities Two Thousand Six Series Four [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.95% |  |
Subordinated Debt |  |  |
Subordinated Borrowing [Line Items] |  |  |
Debt Instrument, Unamortized Discount | $ (70,264) |  | $ (76,820)
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 5.48% | 5.48% | 5.93%
Subordinated Debt | Subordinated Debt Trust V Due September 2033 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 10,310 |  | $ 10,310
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 7.71% | 7.71% | 8.74%
Subordinated Debt | Subordinated Debt Trust VI Due September 2033 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 10,310 |  | $ 10,310
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 7.67% | 7.67% | 8.70%
Subordinated Debt | Subordinated Debt Trust CII Due September 2033 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 5,155 |  | $ 5,155
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 7.56% | 7.56% | 8.59%
Subordinated Debt | Subordinated Debt Trust VII Due April 2034 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 61,856 |  | $ 61,856
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 7.60% | 7.60% | 8.40%
Subordinated Debt | Subordinated Debt Trust CIII Due September 2035 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 20,619 |  | $ 20,619
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 6.31% | 6.31% | 7.34%
Subordinated Debt | Subordinated Debt Trust FCCI Due March 2037 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 16,495 |  | $ 16,495
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 6.22% | 6.22% | 7.25%
Subordinated Debt | Subordinated Debt Trust FCBI Due December 2035 [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 10,310 |  | $ 10,310
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 6.17% | 6.17% | 7.20%
Subordinated Debt | Trust Preferred Securities Two Thousand Five Series One [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 82,475 |  | $ 82,475
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 6.57% | 6.57% | 7.60%
Subordinated Debt | Trust Preferred Securities Two Thousand Five Series Two [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 128,866 |  | $ 128,866
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 6.80% | 6.80% | 7.60%
Subordinated Debt | Two Thousand Six One Term Debt Securitization [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 51,545 |  | $ 51,545
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 9.95% | 9.95% | 10.45%
Subordinated Debt | Two Thousand Six Two Term Debt Securitization [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 51,550 |  | $ 51,550
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 6.80% | 6.80% | 7.60%
Subordinated Debt | Trust Preferred Securities Two Thousand Six Series Three |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 26,687 |  | $ 28,453
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 5.10% | 5.10% | 6.00%
Subordinated Debt | Trust Preferred Securities Two Thousand Six Series Four [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 16,470 |  | $ 16,470
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 9.95% | 9.95% | 10.45%
Subordinated Debt | Trust Preferred Securities Two Thousand Six Series Five [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 6,650 |  | $ 6,650
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 6.80% | 6.80% | 7.60%
Subordinated Debt | Two Thousand Seven One Term Debt Securitization [Member] |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 39,177 |  | $ 39,177
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 6.80% | 6.80% | 7.60%
Subordinated Debt | Subordinated notes due May 2031 |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 381,185 |  | $ 380,651
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 3.25% | 3.25% | 3.25%
Subordinated Debt | PMB Statutory Trust III |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 7,217 |  | $ 7,217
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 7.99% | 7.99% | 9.02%
Subordinated Debt | PMB CapitalTrust III |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 10,310 |  | $ 10,310
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 6.89% | 6.89% | 7.66%
Subordinated Debt | Subordinated Notes Due October 30, 2030 |  |  |
Subordinated Borrowing [Line Items] |  |  |
Long-term Debt, Gross | $ 75,000 |  | $ 75,000
Debt Instrument, Basis Spread on Variable Rate | 4.195% |  |
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 4.375% | 4.375% | 4.375%

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