XML 103 R88.htm IDEA: XBRL DOCUMENT v3.22.4
Derivative Instruments - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Derivative [Line Items]      
Net unrealized gains (losses) arising during the period $ (298,289) $ (77,948) $ 99,193
Unrealized gain, after tax (225,715) (57,705) $ 73,502
Pre-tax income 3,800 12,900  
Unamortized deferred net loss balance from previously terminated cash flow hedges 165,000    
Pre-tax loss included in interest income on cash flow hedges 24,000    
Reclaim cash collateral 66,800 64,500  
Obligation to return cash collateral 7,700 0  
Cash Flow Hedging      
Derivative [Line Items]      
Net unrealized gains (losses) arising during the period (57,400) 1,200  
Unrealized gain, after tax $ (43,400) $ 930