Loans - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	$ 7,952,553	$ 7,866,050
Non-owner occupied commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	2,943,897	2,906,014
Owner occupied commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	1,205,635	1,246,189
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	1,275,771	1,260,814
Non-owner occupied residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	210,203	218,026
Commercial, industrial and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	562,677	606,711
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	404,994	380,100
Equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	161,889	151,574
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	857,427	765,552
Home equity and consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of deferred fees	$ 330,060	$ 331,070