XML 51 R45.htm IDEA: XBRL DOCUMENT v3.24.2.u1

Fair Value Measurements - Summary of Carrying Value and Fair Value of Debt Obligations (Parenthetical) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Secured Borrowings	$ 15,280	$ 15,880

X

- Definition

Secured borrowings.

+ References

No definition available.

+ Details

Name:	fdus_SecuredBorrowings
Namespace Prefix:	fdus_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_FairValueDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration