Loans and Allowance for Credit Losses - Loans on Nonaccrual Status and Loans Past Due 90 Days or More and Still Accruing (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Nonaccrual [Line Items]
Beginning of Period Nonaccrual	$ 27,937	$ 22,947
End of Period Nonaccrual	22,339	27,937
Nonaccrual With No Related Allowance	7,457	1,295
Interest income recognized on nonaccrual	281	1,389
Commercial Loans | Commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Beginning of Period Nonaccrual	3,228	6,320
End of Period Nonaccrual	2,264	3,228
Nonaccrual With No Related Allowance	2,004	984
Interest income recognized on nonaccrual	47	116
Commercial Loans | Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
Beginning of Period Nonaccrual	11,173	878
End of Period Nonaccrual	5,385	11,173
Nonaccrual With No Related Allowance	4,447	311
Interest income recognized on nonaccrual	43	85
Commercial Loans | Commercial construction
Financing Receivable, Nonaccrual [Line Items]
Beginning of Period Nonaccrual	0	4,960
End of Period Nonaccrual	1,006	0
Nonaccrual With No Related Allowance	1,006	0
Interest income recognized on nonaccrual	25	700
Commercial Loans | Business banking
Financing Receivable, Nonaccrual [Line Items]
Beginning of Period Nonaccrual	2,988	4,147
End of Period Nonaccrual	3,172	2,988
Nonaccrual With No Related Allowance	0	0
Interest income recognized on nonaccrual	17	93
Consumer Loans | Consumer real estate
Financing Receivable, Nonaccrual [Line Items]
Beginning of Period Nonaccrual	10,318	6,312
End of Period Nonaccrual	10,294	10,318
Nonaccrual With No Related Allowance	0	0
Interest income recognized on nonaccrual	149	392
Consumer Loans | Other consumer
Financing Receivable, Nonaccrual [Line Items]
Beginning of Period Nonaccrual	230	330
End of Period Nonaccrual	218	230
Nonaccrual With No Related Allowance	0	0
Interest income recognized on nonaccrual	$ 0	$ 3