Allowance for Credit Losses - Schedule Of Financing Receivables By Type Of Collateral (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 7,049,746	$ 6,857,194
Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	4,988,380	4,858,208
Commercial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	1,497,649	1,381,234
Collateralized Loan Obligations
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	19,923	34,454
Collateralized Loan Obligations | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	8,843	28,053
Collateralized Loan Obligations | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Collateralized Loan Obligations | Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	11,080	6,401
Collateralized Loan Obligations | Specific Reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,787	5,179
Collateralized Loan Obligations | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		26,055
Collateralized Loan Obligations | Real estate loans | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		26,055
Collateralized Loan Obligations | Real estate loans | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		0
Collateralized Loan Obligations | Real estate loans | Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		0
Collateralized Loan Obligations | Real estate loans | Specific Reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		0
Collateralized Loan Obligations | Commercial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	13,078	8,399
Collateralized Loan Obligations | Commercial loans | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 1,998	$ 1,998
Weighted-average loan-to-value	45.00%	42.00%
Collateralized Loan Obligations | Commercial loans | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 0	$ 0
Collateralized Loan Obligations | Commercial loans | Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	11,080	6,401
Collateralized Loan Obligations | Commercial loans | Specific Reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,787	5,179
Loans, no specific reserve	400	500
Non-owner occupied | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	1,630,451	1,615,716
Non-owner occupied | Collateralized Loan Obligations | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		20,121
Non-owner occupied | Collateralized Loan Obligations | Real estate loans | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		$ 20,121
Weighted-average loan-to-value		92.70%
Non-owner occupied | Collateralized Loan Obligations | Real estate loans | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		$ 0
Non-owner occupied | Collateralized Loan Obligations | Real estate loans | Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		0
Non-owner occupied | Collateralized Loan Obligations | Real estate loans | Specific Reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		0
Owner occupied | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	1,069,491	1,046,450
Owner occupied | Collateralized Loan Obligations | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	6,845	5,934
Owner occupied | Collateralized Loan Obligations | Real estate loans | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 6,845	$ 5,934
Weighted-average loan-to-value	69.00%	62.70%
Owner occupied | Collateralized Loan Obligations | Real estate loans | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 0	$ 0
Owner occupied | Collateralized Loan Obligations | Real estate loans | Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Owner occupied | Collateralized Loan Obligations | Real estate loans | Specific Reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 0	$ 0