XML 18 R4.htm IDEA: XBRL DOCUMENT v3.24.3
Condensed Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Net unrealized gains (losses) on available-for-sale investment securities:        
Net unrealized gains (losses) on available-for-sale investment securities arising during the period, tax $ 13,470 $ (13,918) $ 7,878 $ (11,860)
Amortization of unrealized holding losses on held-to-maturity securities, net of taxes 1,231 1,354 3,565 4,050
Derivatives qualifying as cash flow hedges:        
Unrealized interest rate hedging arising during the period, tax (291) (185) (24) (237)
Reclassification adjustment for net unrealized losses included in net income, tax (18) (17) (52) (50)
Retirement benefit plans:        
Adjustment for amortization of prior service credit and net gains recognized during the period in net periodic benefit cost, tax (431) (153) (740) (397)
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, tax $ 462 $ 163 $ 781 $ 458