v3.26.3
Unaudited Consolidated Statements of Cash Flows (Parenthetical)
$ in Millions
9 Months Ended
Sep. 30, 2025
USD ($)
Statement of Cash Flows [Abstract]
Contribution of investments at fair value
$ 431
X
- Definition
Noncash Investments Contributed At Fair Value
+ References
No definition available.
+ Details
Name:
fsk_NoncashInvestmentsContributedAtFairValue
Namespace Prefix:
fsk_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_StatementOfCashFlowsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration