Tax Information - Components of Accumulated Earnings (Losses) on Tax Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Retained Earnings (Accumulated Deficit) [Abstract]
Undistributed ordinary income -net	$ 108,725	$ 152,038	$ 118,026
Total Undistributed Earnings	108,725	152,038	118,026
Capital Loss Carryforwards [Abstract]
Perpetual Long-Term	(318,245)	(297,091)	(138,282)
Perpetual Short-Term	(100,239)	(29,987)	(12,358)
Total capital loss carryforwards	(418,484)	(327,078)	(150,640)
Timing Differences (Organizational Costs, Post-October Capital Loss Deferral and Late Year Ordinary Loss Deferral)	(2,216)	(24,198)	(50,451)
Unrealized Earnings (Losses)-net	(144,720)	(174,432)	(141,514)
Total Accumulated Earnings (Losses) - net	$ (456,695)	$ (373,670)	$ (224,579)