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Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2025

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (Unaudited)

Selected Quarterly Financial Data (Unaudited)

The following is the quarterly results of operations for the years ended December 31, 2025 and 2024. The following information reflects all normal recurring adjustments necessary for a fair presentation of the information for the periods presented. The operating results for any quarter are not necessarily indicative of results for any future period.

						Quarter Ended
						December 31, 2025						September 30, 2025						June 30, 2025						March 31, 2025
Investment income						$	348					$	373					$	398					$	400
Operating expenses
Net expenses and excise taxes						213						214						225						213
Net investment income						135						159						173						187
Realized and unrealized gain (loss)						(249)						55						(382)						(67)
Net increase (decrease) in net assets resulting from operations						$	(114)					$	214					$	(209)					$	120
Per share information-basic and diluted
Net investment income						$	0.48					$	0.57					$	0.62					$	0.67
Net increase (decrease) in net assets resulting from operations						$	(0.41)					$	0.76					$	(0.75)					$	0.43
Weighted average shares outstanding						280,066,433						280,066,433						280,066,433						280,066,433
						Quarter Ended
						December 31, 2024						September 30, 2024						June 30, 2024						March 31, 2024
Investment income						$	407					$	441					$	439					$	434
Operating expenses
Net expenses and excise taxes						236						226						224						222
Net investment income						171						215						215						212
Realized and unrealized gain (loss)						(24)						(55)						(110)						(39)
Net increase (decrease) in net assets resulting from operations						$	147					$	160					$	105					$	173
Per share information-basic and diluted
Net investment income						$	0.61					$	0.77					$	0.77					$	0.76
Net increase (decrease) in net assets resulting from operations						$	0.52					$	0.57					$	0.37					$	0.62
Weighted average shares outstanding						280,066,433						280,066,433						280,066,433						280,066,433

The sum of quarterly per share amounts does not necessarily equal per share amounts reported for the years ended December 31, 2025 and 2024. This is due to changes in the number of weighted-average shares outstanding and the effects of rounding for each period.

For the year ended December 31, 2025, 71.9% of distributions qualified as interest related dividends for FSK stockholders which are exempt from U.S. withholding tax applicable to non U.S. shareholders. For the year ended December 31, 2025, 89.5% of distributions qualified as excess interest income for purposes of Internal Revenue Code Section 163(j).

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- References

No definition available.

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- Definition

The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482964/270-10-50-1B

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 270
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/270/tableOfContent

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