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Distributable Taxable Income - Components of Accumulated Earnings on Tax Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investment Company, Distributable Earnings [Abstract]
Capital loss carryforward	$ (418,937)	$ (385,880)	$ (339,584)
Other temporary differences		(375)	(370)
Net unrealized depreciation	$ 77,496	$ 69,611	$ (82,993)

X

- Definition

Investment company, accumulated earnings on tax basis, capital loss carryforward.

+ References

No definition available.

+ Details

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X

- Definition

Investment company, accumulated earnings on tax basis net unrealized depreciation

+ References

No definition available.

+ Details

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X

- Definition

Investment company, Accumulated earnings on tax basis, Other temporary differences.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- References

No definition available.

+ Details

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