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Consolidated Statements Of Cash Flows (Parenthetical) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Statement of Cash Flows [Abstract]    
Deferred tax benefit (provision) related to unrealized loss (gain) on investments $ 1,114 $ 229
Adjustments to postretirement benefits obligation, net of deferred tax benefit $ (48) $ 0