Loans - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 5,976,148	$ 6,021,232
Non-owner occupied commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,316,284	2,398,946
Owner occupied commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	908,449	827,092
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	972,233	813,225
Non-owner occupied residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	177,097	200,229
Commercial, industrial and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	462,406	718,189
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	302,228	266,883
Equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	123,212	116,690
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	438,710	377,380
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 275,529	$ 302,598