CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Pension and other post retirement obligations:
Amortization of actuarial losses included in net periodic pension cost, gross	$ 220	$ 911	$ 660	$ 2,733
Tax effect	(53)	(219)	(160)	(657)
Amortization of actuarial losses included in net periodic pension cost, net	167	692	500	2,076
Amortization of prior service cost included in net periodic pension cost, gross	109	50	327	150
Tax effect	(26)	(12)	(79)	(36)
Amortization of prior service cost included in net periodic pension cost, net	83	38	248	114
Other comprehensive income related to pension and other post-retirement obligations, net of taxes	250	730	748	2,190
Unrealized losses on available-for-sale securities:
Net unrealized losses arising during period, gross	(301,023)	(21,268)	(919,962)	(168,621)
Tax effect	73,119	5,112	223,460	40,528
Other comprehensive loss related to unrealized losses on available-for-sale securities, net of taxes	(227,904)	(16,156)	(696,502)	(128,093)
Other comprehensive loss, net of tax	(227,654)	(15,426)	(695,754)	(125,903)
Net income	48,691	45,336	135,551	146,130
Comprehensive (loss) income	(178,963)	$ 29,910	(560,203)	$ 20,227
Accumulated Other Comprehensive Loss By Component:
Unrealized loss for pension and other post-retirement obligations	(19,637)		(19,637)		$ (20,624)
Tax effect	4,915		4,915		5,154
Net unrealized loss for pension and other post-retirement obligations	(14,722)		(14,722)		(15,470)
Unrealized loss on available-for-sale securities	(965,855)		(965,855)		(45,893)
Tax effect	234,196		234,196		10,736
Net unrealized loss on available-for-sale securities	(731,659)		(731,659)		(35,157)
Accumulated other comprehensive loss	$ (746,381)		$ (746,381)		$ (50,627)