Stockholders’ Equity and Accumulated Other Comprehensive (Loss) Income - Change in the Components of the Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period	$ 127,411	$ 148,956
Other comprehensive loss, before reclassifications	(10,541)	(54,985)
Amounts reclassified from accumulated other comprehensive loss	0	0
Current period other comprehensive loss, before tax	(10,541)	(54,985)
Income tax benefit	2,214	11,547
Current period other comprehensive loss, net of tax	(8,327)	(43,438)
Balance at end of period	118,404	115,405
Unrealized Gains (Losses) on Securities
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period	(36,657)	362
Other comprehensive loss, before reclassifications	(10,061)	(54,985)
Amounts reclassified from accumulated other comprehensive loss	0	0
Current period other comprehensive loss, before tax	(10,061)	(54,985)
Income tax benefit	2,113	11,547
Current period other comprehensive loss, net of tax	(7,948)	(43,438)
Balance at end of period	(44,605)	(43,076)
Unrecognized Net Pension and Postretirement Costs
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period	4,943	2,931
Other comprehensive loss, before reclassifications	(480)	0
Amounts reclassified from accumulated other comprehensive loss	0	0
Current period other comprehensive loss, before tax	(480)	0
Income tax benefit	101	0
Current period other comprehensive loss, net of tax	(379)	0
Balance at end of period	4,564	2,931
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period	(31,714)	3,293
Balance at end of period	$ (40,041)	$ (40,145)