Consolidated Statements Of Cash Flows (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Statement of Cash Flows [Abstract]
Non cash net unrealized (gain) loss on investments, net of deferred tax (expense) benefit of $(109) and $860 for December 31, 2023 and 2022, respectively	$ (109)	$ 860
Adjustments to postretirement benefits obligation, net of deferred tax expense of $(5) and $(48) for December 31, 2023 and 2022, respectively	$ (5)	$ (48)