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Borrowing Arrangements (Tables)
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Summary of Borrowings Available to the Company from Institutions
The Company had available borrowings from the following institutions as of December 31, 2021:
($ in thousands)December 31, 2021
Federal Home Loan Bank—San Francisco$350,585 
Federal Reserve Bank141,639 
Pacific Coast Bankers Bank50,000 
Zions Bank25,000 
First Horizon Bank25,000 
Total$592,224