Other Comprehensive Income - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Before reclassification, net of tax	$ (7,788)	$ 17,635	$ (146,794)
Reclassification, net of tax	(1,090)	(89)	724
Net change before tax	(11,474)	26,345	(202,036)
Net change, tax	2,596	(8,799)	55,966
Other comprehensive (loss) income, net	(8,878)	17,546	(146,070)
Unrealized Gains and Losses on AFS Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Before reclassification, before tax	(24,687)	19,514	(189,201)
Before reclassification, tax	6,290	(6,564)	52,220
Before reclassification, net of tax	(18,397)	12,950	(136,981)
Reclassification adjustment before tax	1	(863)	(31)
Reclassification, tax	0	229	8
Reclassification, net of tax	1	(634)	(23)
Net change before tax	(24,686)	18,651	(189,232)
Net change, tax	6,290	(6,335)	52,228
Other comprehensive (loss) income, net	(18,396)	12,316	(137,004)
Unrealized Gains and Losses on Derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Before reclassification, before tax	0	(1,093)	4,683
Before reclassification, tax	0	336	(1,321)
Before reclassification, net of tax	0	(757)	3,362
Reclassification adjustment before tax	(1,204)	891	274
Reclassification, tax	335	(253)	(71)
Reclassification, net of tax	(869)	638	203
Net change before tax	(1,204)	(202)	4,957
Net change, tax	335	83	(1,392)
Other comprehensive (loss) income, net	(869)	(119)	3,565
Net change
Accumulated Other Comprehensive Income (Loss) [Line Items]
Before reclassification, net of tax	10,609	5,442	(13,175)
Reclassification, net of tax	(222)	(93)	544
Net change before tax	14,416	7,896	(17,761)
Net change, tax	(4,029)	(2,547)	5,130
Other comprehensive (loss) income, net	10,387	5,349	(12,631)
Net gains (losses) arising during the period
Accumulated Other Comprehensive Income (Loss) [Line Items]
Before reclassification, before tax	14,725	8,035	(18,531)
Before reclassification, tax	(4,116)	(2,593)	5,356
Before reclassification, net of tax	10,609	5,442	(13,175)
Amortization of prior service (cost) credit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification adjustment before tax	(135)	(135)	(135)
Reclassification, tax	38	45	35
Reclassification, net of tax	(97)	(90)	(100)
Amortization of net loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification adjustment before tax	(174)	(4)	905
Reclassification, tax	49	1	(261)
Reclassification, net of tax	$ (125)	$ (3)	$ 644

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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