Allowance for Credit Losses - Schedule Of Financing Receivables By Type Of Collateral (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 7,167,016	$ 6,857,194
Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,073,043	4,858,208
Commercial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	1,577,209	1,381,234
Collateralized Loan Obligations
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	45,327	34,454
Collateralized Loan Obligations | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	32,815	28,053
Collateralized Loan Obligations | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	803	0
Collateralized Loan Obligations | Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	11,709	6,401
Collateralized Loan Obligations | Specific Reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	14,275	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	11,709	8,399
Collateralized Loan Obligations | Commercial loans | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	$ 1,998
Weighted-average loan-to-value		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	11,709	6,401
Collateralized Loan Obligations | Commercial loans | Specific Reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,707	5,179
Loans, no specific reserve		500
Non-owner occupied | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	1,645,224	1,615,716
Non-owner occupied | Collateralized Loan Obligations | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	1,821	20,121
Non-owner occupied | Collateralized Loan Obligations | Real estate loans | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 1,821	$ 20,121
Weighted-average loan-to-value	62.10%	92.70%
Non-owner occupied | Collateralized Loan Obligations | Real estate loans | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 0	$ 0
Non-owner occupied | Collateralized Loan Obligations | Real estate loans | Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Non-owner occupied | Collateralized Loan Obligations | Real estate loans | Specific Reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Multi-family residential | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	764,712	820,023
Multi-family residential | Collateralized Loan Obligations | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	24,306
Multi-family residential | Collateralized Loan Obligations | Real estate loans | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 24,306
Weighted-average loan-to-value	67.30%
Multi-family residential | Collateralized Loan Obligations | Real estate loans | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 0
Multi-family residential | Collateralized Loan Obligations | Real estate loans | Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0
Multi-family residential | Collateralized Loan Obligations | Real estate loans | Specific Reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	8,568
Single-family residential | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	1,285,857	1,102,845
Single-family residential | Collateralized Loan Obligations | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	803
Single-family residential | Collateralized Loan Obligations | Real estate loans | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0
Single-family residential | Collateralized Loan Obligations | Real estate loans | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	803
Single-family residential | Collateralized Loan Obligations | Real estate loans | Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0
Single-family residential | 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	1,063,240	1,046,450
Owner occupied | Collateralized Loan Obligations | Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	6,688	5,934
Owner occupied | Collateralized Loan Obligations | Real estate loans | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 6,688	$ 5,934
Weighted-average loan-to-value	62.00%	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