Summary of Significant Accounting Policies - Schedule of Tax Components of Accumulated Net Earnings (Losses) (Details) - USD ($)		Dec. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Non-expiring capital loss carryforwards	[1]	$ (401,155,603)	$ (402,453,454)
Net unrealized gains (losses)	[2]	(57,232,175)	(31,849,843)
Total accumulated earnings (losses)		$ (458,387,778)	$ (434,303,297)

[1] Amount available to offset future realized capital gains.

[2] The difference between book-basis and tax-basis net unrealized gains (losses) was attributable primarily to the timing and recognition of partnership income, non-deductible expenses, the accrual of income on securities in default, accounting for the Company's Interest Rate Swap, and investments in wholly owned subsidiaries.