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Investments (Tables)
 9 Months Ended
Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Investments, Available-for-Sale Securities
The following table summarizes the Company's available-for-sale investments as of September 30, 2024:

Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
Fixed maturity securities:in thousands
Corporate $209,096 $4,895 $(27)$213,964 
U.S. Treasury108,530 1,054 (23)109,561 
States and municipalities38,211 1,718 — 39,929 
Foreign 18,632 56 (54)18,634 
Asset-backed securities25,126 650 (9)25,767 
Mortgage-backed securities111,585 2,804 (32)114,357 
Total fixed maturity securities$511,180 $11,177 $(145)$522,212 
Schedule Of Contractual Maturities Of The Company's Available-For-Sale Investments
The following table summarizes the contractual maturities of the Company's available-for-sale investments as of September 30, 2024:

Amortized CostEstimated Fair Value
in thousands
Due in one year or less$50,130 $50,247 
Due after one year through five years239,695 244,116 
Due after five years through ten years76,631 79,357 
Due after ten years8,013 8,368 
Mortgage-backed and asset-backed securities136,711 140,124 
Total fixed maturity securities$511,180 $522,212 
Schedule of Debt Securities, Held-to-Maturity
The following table summarizes the fair value and related carrying amount of the Company's held-to-maturity investments as of December 31, 2023:

Carrying AmountEstimated Fair Value
in thousands
Short-term$10,946 $10,864 
Long-term5,526 5,398 
Total$16,472 $16,262 
Schedule of Net Investment Income Component
The following table presents the components of net investment income for the three and nine months ended September 30, 2024 and 2023:

Three months ended
September 30,		Nine months ended
September 30,
2024202320242023
Interest income:in thousands
Cash and cash equivalents and restricted cash and cash equivalents$4,514 $7,084 $21,154 $17,990 
Fixed maturity securities5,127 121 8,921 344 
Total interest income9,641 7,205 30,075 18,334 
Dividends on equity securities 34 — 58 — 
Gross investment income9,675 7,205 30,133 18,334 
Investment expenses(91)— (213)— 
Net investment income$9,584 $7,205 $29,920 $18,334 
Schedule Of Net Realized And Unrealized Gains (Losses) On Investments The gross amounts of realized investment gains and losses on fixed maturity securities were not material to the Condensed Consolidated Financial Statements and are presented on a net basis in the table below.
Three months endedNine months ended
September 30, 2024
Fixed maturity securities:in thousands
Net realized investment gains (losses)$700 $731 
Equity securities:
Total change in fair value of equity securities574 1,052 
Net investment gains (losses)$1,274 $1,783 
Change in net unrealized gains (losses) on available-for-sale investments included in Other comprehensive income (loss):
Fixed maturity securities$10,081 $11,032