Loans and Allowance for Credit Losses - Schedule of Participating Mortgage Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance	$ 2,136,457	$ 1,579,059
Non-performing Loan Rate (%)	1.71%	0.00%
Gross Charge-offs	$ 10,290	$ 22
Commercial Portfolio Segment | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance	$ 1,031,237	$ 985,394
Non-performing Loan Rate (%)	0.00%	0.00%
Gross Charge-offs	$ 0	$ 0
Commercial Portfolio Segment | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance	$ 944,371	$ 447,550
Non-performing Loan Rate (%)	3.87%	0.00%
Gross Charge-offs	$ 10,290	$ 0
Commercial Portfolio Segment | Commercial construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance	$ 159,237	$ 146,043
Non-performing Loan Rate (%)	0.00%	0.00%
Gross Charge-offs	$ 0	$ 0
Commercial Portfolio Segment | Business banking
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance	$ 1,612	$ 72
Non-performing Loan Rate (%)	0.00%	0.00%
Gross Charge-offs	$ 0	$ 22