Background and Business Description AMPS Exchange (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Stockholders' Equity Attributable to Noncontrolling Interest	$ 197,755	$ 52,958
Preferred stock, shares outstanding (in shares)	0	0
Ambac Assurance Corporation
Preferred stock, liquidation preference, value	$ 114,900	$ 114,900
Stockholders' Equity Attributable to Noncontrolling Interest	$ 50,918
Preferred stock, shares outstanding (in shares)	4,596	4,596