Investments Investments - Equity Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Schedule of Equity Method Investments [Line Items]
Equity Securities Excluded From Fair Value Table	$ 20,618		$ 20,618
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	$ 0	0	$ 0
Other than Temporary Impairment Losses, Investments	0
Private Equity Funds [Member]
Schedule of Equity Method Investments [Line Items]
Other investments	7,420		$ 7,499
Commitments [Member] | Private Equity Funds [Member]
Schedule of Equity Method Investments [Line Items]
Other investments	$ 1,724