Consolidated Statements of Total Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Net Investment Income [Abstract]
Interest Income, Debt Securities, Available-for-Sale, Operating	$ 2,609	$ 4,149	$ 5,503	$ 7,818
Investment income	2,609	3,763	5,424	7,403
Realized Investment Gains (Losses)	2	4,535	(1)	4,536
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Insurance Commissions and Fees	30,322	13,221	67,093	30,950
Other Operating Income (Expense), Net	(2,146)	3,671	(3,270)	3,707
Total revenues and other income	54,957	51,037	117,713	100,588
Policyholder Benefits and Claims Incurred, Net	10,978	23,024	21,474	42,379
Expenses:
Intangible amortization	9,301	1,139	18,064	2,278
General and Administrative Expense	40,540	27,861	79,071	45,436
Interest	5,570	0	11,024	0
Total expenses	77,931	65,786	155,794	118,576
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(22,974)	(14,749)	(38,081)	(17,988)
Provision (benefit) for income taxes from continuing operations	(2,172)	(30)	(2,789)	100
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest	254	(213)	(1,400)	(914)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(20,802)	(14,719)	(35,292)	(18,088)
Net income (loss) attributable to shareholders	(72,699)	(750)	(119,090)	19,320
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(20,802)	(14,719)	(35,292)	(18,088)
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax	(4,647)	3,870	13,959	(3,147)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	97,484	1,268	133,704	(6,502)
Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, Unrealized Gain (Loss) Arising During Period, after Tax	144	(103)	586	(356)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	0	(4,559)	0	(4,939)
Total other comprehensive income (loss), net of income tax	92,981	476	148,249	(14,944)
Total comprehensive income (loss), net of income tax	20,028	(60)	30,559	5,291
Total comprehensive income (loss) attributable to shareholders	(1,293)	(273)	3,332	4,378
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	$ 254	$ (213)	$ (1,400)	$ (914)
Earnings Per Share, Basic	$ (1.54)	$ (0.02)	$ (2.75)	$ 0.42
Earnings Per Share, Diluted	$ (1.54)	$ (0.02)	$ (2.75)	$ 0.42
Weighted Average Number of Shares Outstanding, Basic	48,116,503	46,209,250	47,738,050	46,019,145
Weighted Average Number of Shares Outstanding, Diluted	48,116,503	46,209,250	47,738,050	46,019,145
Premiums Earned, Net	$ 16,203	$ 27,054	$ 31,881	$ 52,633
Contractually Specified Servicing Fee, Late Fee, and Ancillary Fee Earned in Exchange for Servicing Financial Asset	3,497	3,328	7,149	5,895
Deferred Policy Acquisition Costs, Amortization Expense	3,699	5,399	7,540	9,823
General and Administrative Expense	40,540	27,861	79,071	45,436
Insurance Commissions	7,403	7,888	17,768	17,710
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest	(21,575)	0	(25,827)	0
Depreciation	440	475	853	947
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(52,151)	14,182	(82,398)	38,322
Net income attributable to common shareholders	(72,699)	(750)	(119,090)	19,320
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic	(20,548)	(14,932)	(36,692)	(19,002)
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic	$ (52,151)	$ 14,182	$ (82,398)	$ 38,322
Income (Loss) from Continuing Operations, Per Basic Share	$ (0.45)	$ (0.33)	$ (1.03)	$ (0.42)
Income (Loss) from Continuing Operations, Per Diluted Share	(0.45)	(0.33)	(1.03)	(0.42)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	(1.08)	0.31	(1.73)	0.83
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	$ (1.08)	$ 0.31	$ (1.73)	$ 0.83
Net Income (Loss) Available to Common Stockholders, Basic	$ (72,699)	$ (750)	$ (119,090)	$ 19,320
Fee Income	4,472	0	9,436	0
Depreciation, Depletion and Amortization	9,741	1,614	18,917	3,228
Net Income (Loss) Attributable to Noncontrolling Interest	(72,953)	(537)	(117,690)	20,234
Unrealized (loss) gain on securities, taxes	503	(197)	1,148	414
Gain (loss) on foreign currency translation, taxes	0	0	0	0
Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, after Reclassification Adjustment, Tax	48	(34)	195	(118)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Plan Amendments, Tax Effect	0	0	0	0
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest	(20,802)	(14,719)	(35,292)	(18,088)
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax	(52,151)	14,182	(82,398)	38,322
Discontinued Operations, Held-for-Sale or Disposed of by Sale | Ambac Assurance Corporation [Member]
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax			637,601
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax	$ (52,960)	$ 0	$ (67,456)	$ 0