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Investments (Details)
$ in Thousands
Sep. 30, 2023
USD ($)
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]  
Amortized cost $ 44,042
Gross accumulated unrealized gains 6
Gross accumulated unrealized losses (1,421)
Available-for-sale debt securities, fair value 42,627
Mortgage-backed and asset-backed securities  
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]  
Amortized cost 44,042
Gross accumulated unrealized gains 6
Gross accumulated unrealized losses (1,421)
Available-for-sale debt securities, fair value $ 42,627