Quarterly report pursuant to Section 13 or 15(d)

Liquidity - Additional Information (Detail)

v3.21.1
Liquidity - Additional Information (Detail) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Line of Credit Facility [Line Items]    
Total borrowing capacity based on pledged collateral $ 1,570,000,000 $ 1,440,000,000
Amount available from borrowing source 31,100,000 26,300,000
Borrowings 0 0
Line of credit 115,000,000.0  
Hanmi Bank    
Line of Credit Facility [Line Items]    
Cash on deposit with bank subsidiary 11,600,000 17,300,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances 150,000,000.0 150,000,000.0
Broker deposits $ 175,300,000 193,700,000
Percentage of borrowings from FHLB (up to) 30.00%  
Total borrowing capacity based on pledged collateral $ 1,680,000,000 1,730,000,000
Borrowing capacity available based on pledged collateral 1,390,000,000 $ 1,440,000,000
Amount available from borrowing source 31,100,000  
Carrying value for loans pledged by Bank 32,600,000  
Borrowings 0  
Maximum borrowing capacity of line of credit $ 100,000,000.0