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Borrowings - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Borrowings - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Short-term borrowings		$ 7,119	$ 7,009
Available lines of credit including FHLB		299,700	682,700
Long-term debt outstanding		179,000
Newly issued common stock (in shares)	1,981,506
Commercial and Standby letters of credit \| Long-term Advances from FHLB
Debt Instrument [Line Items]
Letters of credit amount at FHLB		327,200	455,700
Senior Long-term Debt
Debt Instrument [Line Items]
Long-term debt outstanding		14,203
Junior Subordinated Debt
Debt Instrument [Line Items]
Long-term debt outstanding		$ 29,805
Senior Long-term Debt Instrument One \| Senior Long-term Debt
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.50%
Interest rate		6.75%
Long-term debt outstanding		$ 14,200	15,200
Percentage of interest used secured pledge borrowings		86.77%
Number of shares used secured pledge borrowings (in shares)		4,823,899
Junior Subordinated Debt Instrument One \| Junior Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.75%
Long-term debt outstanding		$ 0	15,000
Junior Subordinated Debt Instrument Two \| Junior Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.75%
Interest rate		8.25%
Long-term debt outstanding		$ 29,800	$ 29,700