XML 58 R48.htm IDEA: XBRL DOCUMENT v3.23.1
INVESTMENT SECURITIES - Allowance for credit losses to HTM securities (Details) - USD ($)
3 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
Allowance for credit losses:        
Beginning balance $ 0      
Impact of adopting ASU 2016-13 239,822,000 $ 240,864,000 $ 223,266,000 $ 219,041,000
Total ending allowance balance 71,000      
Cumulative adjustment for day one adoption of ASC 326, net of tax        
Allowance for credit losses:        
Impact of adopting ASU 2016-13 [1]   $ (5,319,000)    
Corporate bonds        
Allowance for credit losses:        
Beginning balance 0      
Provision for credit losses 0      
Securities charged-off (recoveries) 0      
Total ending allowance balance 71,000      
Corporate bonds | Cumulative adjustment for day one adoption of ASC 326, net of tax        
Allowance for credit losses:        
Impact of adopting ASU 2016-13 71,000      
Corporate CMO        
Allowance for credit losses:        
Beginning balance 0      
Provision for credit losses 0      
Securities charged-off (recoveries) 0      
Total ending allowance balance 0      
Corporate CMO | Cumulative adjustment for day one adoption of ASC 326, net of tax        
Allowance for credit losses:        
Impact of adopting ASU 2016-13 $ 0      
[1] Refer to Note 1 - Organization and Summary of Significant Accounting Policies for further information.