Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Increase in Net Assets From Operation

The following reconciles the increase in net assets resulting from operations for the fiscal years ended December 31, 2023, 2022, and 2021 to undistributed taxable income for the following periods:

	For the Years Ended December 31,
($ in millions)	2023(1)		2022		2021
Increase in net assets resulting from operations	$	793.3	$	466.3	$	624.9
Adjustments:
Net unrealized (gain) loss on investments	$	(92.9)	$	94.5	$	(179.8)
Other income (loss) for tax purposes, not book	(43.3)		(33.0)		(2.0)
Deferred organization costs	(0.1)		(0.1)		(0.1)
Other book-tax differences	12.7		5.8		4.0
Realized gain/loss differences	53.0		1.0		37.4
Taxable Income	$	722.7	$	534.5	$	484.4

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(1)Tax information for the fiscal year ended December 31, 2023 is estimated and is not considered final until the Company files its tax return.