Summary of Significant Accounting Policies - Allowance for Credit Losses on Loans (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Allowance for credit losses on loans	$ 47,512,000	$ 43,290,000	$ 44,400,000	$ 31,855,000	$ 23,285,000
Loans, net of deferred fees	3,299,067,000	3,090,788,000
Loans, net	3,251,038,000	3,044,036,000
Commercial. | SBA Paycheck Protection Program ("PPP")
Allowance for credit losses on loans		0
SBA Paycheck Protection Program ("PPP") loans
Loans, net of deferred fees	1,166,000
Loans, net		88,726,000
Bay View Funding
Loans, net	$ 79,263,000	$ 53,229,000
ASU 2016-03 - Topic 326
Allowance for credit losses on loans					$ 8,570,000