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Comprehensive Income - Components of AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (AOCI)
Beginning balance	$ 274,328
Other comprehensive income (loss) before reclassification	(33,864)	$ (3,882)
Amounts reclassified from AOCI	(234)	(1,950)
Net current period OCI	(34,098)	(5,832)
Ending balance	261,084	274,328
Unrealized gains (losses) on available for-sale securities
Accumulated Other Comprehensive Income (AOCI)
Beginning balance	147	7,586
Other comprehensive income (loss) before reclassification	(34,478)	(4,472)
Amounts reclassified from AOCI	(498)	(2,967)
Net current period OCI	(34,976)	(7,439)
Ending balance	(34,829)	147
Defined benefit pension plan items
Accumulated Other Comprehensive Income (AOCI)
Beginning balance	(4,069)	(5,047)
Other comprehensive income (loss) before reclassification	614	590
Amounts reclassified from AOCI	326	388
Net current period OCI	940	978
Ending balance	(3,129)	(4,069)
Investment hedge
Accumulated Other Comprehensive Income (AOCI)
Beginning balance	316	(313)
Other comprehensive income (loss) before reclassification	0	0
Amounts reclassified from AOCI	(62)	629
Net current period OCI	(62)	629
Ending balance	254	316
AOCI attributable to parent
Accumulated Other Comprehensive Income (AOCI)
Beginning balance	(3,606)	2,226
Ending balance	$ (37,704)	$ (3,606)

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Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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