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Accumulated Other Comprehensive Income (Tables)
12 Months Ended
Dec. 31, 2023
Equity [Abstract]  
Summary of Components of Accumulated Other Comprehensive Income (Loss)
The following table shows the changes in the components of our accumulated other comprehensive income (loss), net of tax, for the years ended December 31, 2023, 2022 and 2021:

Liability for
Net unrealizedunderfunded
appreciationemployee
on investmentsbenefit costsTotal
Balance as of January 1, 2021$83,070 $(16,159)$66,911 
Change in accumulated other comprehensive income before reclassifications(31,519)15,511 (16,008)
Reclassification adjustments from accumulated other comprehensive income(1,782)5,216 3,434 
Balance as of December 31, 2021$49,769 $4,568 $54,337 
Change in accumulated other comprehensive income before reclassifications(139,183)(6,540)(145,723)
Reclassification adjustments from accumulated other comprehensive income1,045 2,845 3,890 
Balance as of December 31, 2022$(88,369)$873 $(87,496)
Change in accumulated other comprehensive income before reclassifications20,835 14,973 35,808 
Reclassification adjustments from accumulated other comprehensive income567 164 731 
Balance as of December 31, 2023$(66,967)$16,010 $(50,957)