Borrowings and Subordinated Debentures (Details 1) $ in Thousands, € in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2023 EUR (€)	Dec. 31, 2022 USD ($)
Subordinated Borrowing [Line Items]
Subordinated debt	$ 936,599		$ 867,087
Subordinated debt	$ 936,600
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.92%	4.92%	5.36%
Subordinated Debentures, Gross	$ 1,013,419		$ 934,514
Debt Issuance Costs, Gross	$ 4,300
Trust Preferred Securities Two Thousand Six Series Three [Member]
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 [Member]
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	$ (76,820)		$ (67,427)
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.93%	5.93%	5.08%
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	8.74%	8.74%	7.84%
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	8.70%	8.70%	7.82%
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	8.59%	8.59%	7.69%
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	8.40%	8.40%	7.16%
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	7.34%	7.34%	6.46%
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	7.25%	7.25%	6.37%
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	7.20%	7.20%	6.32%
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	7.60%	7.60%	6.72%
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	7.60%	7.60%	6.36%
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	10.45%	10.45%	6.36%
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	7.60%	7.60%	6.36%
Subordinated Debt | Trust Preferred Securities Two Thousand Six Series Three [Member]
Subordinated Borrowing [Line Items]
Long-term Debt, Gross	$ 28,453		$ 27,592
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	6.00%	6.00%	3.66%
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	10.45%	10.45%	6.36%
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	7.60%	7.60%	6.36%
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	7.60%	7.60%	6.36%
Subordinated Debt | Subordinated notes due May 2031
Subordinated Borrowing [Line Items]
Long-term Debt, Gross	$ 380,651		$ 395,134
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		$ 0
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	9.02%	9.02%	0.00%
Subordinated Debt | PMB CapitalTrust III
Subordinated Borrowing [Line Items]
Long-term Debt, Gross	$ 10,310		$ 0
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	7.66%	7.66%	0.00%
Subordinated Debt | Subordinated Notes Due October 30, 2030
Subordinated Borrowing [Line Items]
Long-term Debt, Gross	$ 75,000		$ 0
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.375%	4.375%	0.00%