Condensed Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 35,833	$ 20,374
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on available for sale securities arising during the period	24,444	(78,397)
Change in minimum pension liability	0	58
Change in joint beneficiary agreements	0	0
Other comprehensive income (loss)	24,444	(78,339)
Comprehensive income (loss)	$ 60,277	$ (57,965)