Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 31,364	$ 28,362	$ 51,738	$ 62,011
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on available for sale securities arising during the period	(68,611)	5,206	(147,008)	(3,484)
Change in minimum pension liability	0	0	58	0
Change in joint beneficiary agreements	0	0	0	(629)
Other comprehensive income (loss)	(68,611)	5,206	(146,950)	(4,113)
Comprehensive income (loss)	$ (37,247)	$ 33,568	$ (95,212)	$ 57,898