Loans Receivable and Allowance for Credit Losses - Narrative (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 6,493,740,000				$ 4,608,956,000				$ 6,493,740,000	$ 4,608,956,000
Provision for credit loss expense	892,000	$ 2,069,000	$ 4,338,000	$ 1,556,000	2,930,000	$ 2,381,000	$ 2,591,000	$ 1,320,000	8,855,000	9,222,000	$ 5,993,000
Provision for credit losses on unfunded loan commitments									208,000	185,000	$ 156,000
Previously modified loans with a subsequent default									0
Syndicated loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	70,798,000				79,882,000				70,798,000	79,882,000
Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable excluding accrued interest modified accumulated									60,000
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	778,978,000				718,775,000				778,978,000	718,775,000
Commercial and Industrial | Syndicated loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 70,800,000				$ 79,900,000				$ 70,800,000	$ 79,900,000