Debt - Outstanding Senior Debt (Details) - FHLB of Indianapolis - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Gross Debt	$ 17,887	$ 27,637
Unamortized Debt Issuance Costs	1,414	2,576
Debt Issuance Costs, Net, Total	16,473	25,061
Senior Unsecured Notes
Debt Instrument [Line Items]
Gross Debt	17,887	17,887
Unamortized Debt Issuance Costs	1,414	1,679
Debt Issuance Costs, Net, Total	16,473	16,208
Senior Secured Notes
Debt Instrument [Line Items]
Gross Debt	0	9,750
Unamortized Debt Issuance Costs	0	897
Debt Issuance Costs, Net, Total	$ 0	$ 8,853