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Changes in Accumulated Other Comprehensive Loss by Component - Reclassification Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Losses from the sale of available-for-sale securities	$ 3,825			$ 394			$ 12,145	$ 7,047
Tax provision (benefit)	(4,778)			1,286			(10,585)	(5,878)
Net losses reclassified from accumulated other comprehensive loss	14,030	$ (1,788)	$ 15,309	(5,047)	$ 8,254	$ 11,671	27,551	14,878
Amounts Reclassified from Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net losses reclassified from accumulated other comprehensive loss	(4)			(3)			(271)	(6)
Losses from the sale of available-for-sale securities | Amounts Reclassified from Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Losses from the sale of available-for-sale securities	(6)			(4)			(343)	(8)
Tax provision (benefit)	$ 2			$ 1			$ 72	$ 2

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