CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net unrealized gains (losses) arising during the period, net of tax expense (benefit)	$ 14,019	$ 40,491	$ 43,301	$ 24,984
Amortization of unrealized losses on securities reclassified to held-to-maturity, tax expense (benefit)	1,063	1,252	3,103	3,613
Change in unfunded pension liability related to unrealized gain and prior service cost, net of tax expense	(20)	(17)	(58)	(72)
Net unrealized gain (loss) arising during the period, net of tax expense (benefit)	(68)	3,386	1,295	1,169
Equity method investment tax benefit (expense)	$ (7)	$ 1	$ (213)	$ (18)