Loans Receivable and Allowance for Credit Losses - Modifications of Outstanding Balance (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Loans Modified as TDRs
Total	$ 79,995	$ 35,619
Term Extension
Loans Modified as TDRs
Total	28,501	21,255
Payment Delay
Loans Modified as TDRs
Total	31,652	14,364
Rate Reduction /Payment Delay
Loans Modified as TDRs
Total	19,842	0
Commercial lending
Loans Modified as TDRs
Total	69,981	34,881
Commercial lending | Term Extension
Loans Modified as TDRs
Total	28,501	20,517
Commercial lending | Payment Delay
Loans Modified as TDRs
Total	22,155	14,364
Commercial lending | Rate Reduction /Payment Delay
Loans Modified as TDRs
Total	19,325	0
Commercial lending | Commercial and industrial (“C&I”)
Loans Modified as TDRs
Total	$ 26,168	$ 34,338
Modification as a % of Loan Class	0.16%	0.22%
Commercial lending | Commercial and industrial (“C&I”) | Term Extension
Loans Modified as TDRs
Total	$ 4,013	$ 19,974
Commercial lending | Commercial and industrial (“C&I”) | Payment Delay
Loans Modified as TDRs
Total	22,155	14,364
Commercial lending | Commercial and industrial (“C&I”) | Rate Reduction /Payment Delay
Loans Modified as TDRs
Total	0	0
Commercial lending | CRE
Loans Modified as TDRs
Total	$ 43,813	$ 543
Modification as a % of Loan Class	0.22%	0.00%
Commercial lending | CRE | Term Extension
Loans Modified as TDRs
Total	$ 24,488	$ 543
Commercial lending | CRE | Payment Delay
Loans Modified as TDRs
Total	0	0
Commercial lending | CRE | Rate Reduction /Payment Delay
Loans Modified as TDRs
Total	19,325	0
Consumer lending
Loans Modified as TDRs
Total	10,014	738
Consumer lending | Term Extension
Loans Modified as TDRs
Total	0	738
Consumer lending | Payment Delay
Loans Modified as TDRs
Total	9,497	0
Consumer lending | Rate Reduction /Payment Delay
Loans Modified as TDRs
Total	517	0
Consumer lending | HELOCs
Loans Modified as TDRs
Total	$ 6,018	$ 738
Modification as a % of Loan Class	0.35%	0.04%
Consumer lending | HELOCs | Term Extension
Loans Modified as TDRs
Total	$ 0	$ 738
Consumer lending | HELOCs | Payment Delay
Loans Modified as TDRs
Total	5,501	0
Consumer lending | HELOCs | Rate Reduction /Payment Delay
Loans Modified as TDRs
Total	517	$ 0
Consumer lending | Real estate loan | Single-family residential
Loans Modified as TDRs
Total	$ 3,996
Modification as a % of Loan Class	0.03%
Consumer lending | Real estate loan | Term Extension | Single-family residential
Loans Modified as TDRs
Total	$ 0
Consumer lending | Real estate loan | Payment Delay | Single-family residential
Loans Modified as TDRs
Total	3,996
Consumer lending | Real estate loan | Rate Reduction /Payment Delay | Single-family residential
Loans Modified as TDRs
Total	$ 0