false

10-Q

Entity Address, Address Line One

One Madison Avenue

Entity Address, City or Town

New York

Entity Address, Postal Zip Code

10010

Local Phone Number

588-6770

Entity Ex Transition Period

true

Risk Factors [Table Text Block]

RISK FACTORS

There have been no material changes to the risk factors discussed in Part I., Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2024. In addition to the other information set forth in this report, you should carefully consider the aforementioned risk factors, which could materially affect our business, financial condition, and/or operating results. These are not the only risks that we face and additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition, and/or operating results.

Risk [Text Block]

RISK FACTORS

There have been no material changes to the risk factors discussed in Part I., Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2024. In addition to the other information set forth in this report, you should carefully consider the aforementioned risk factors, which could materially affect our business, financial condition, and/or operating results. These are not the only risks that we face and additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition, and/or operating results.

N-2 - $ / shares	6 Months Ended
N-2 - $ / shares	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Cover [Abstract]
Entity Central Index Key	0001825248
Amendment Flag	false
Securities Act File Number	814-01360
Document Type	10-Q
Entity Registrant Name	FRANKLIN BSP CAPITAL CORPORATION
Entity Address, Address Line One	One Madison Avenue
Entity Address, Address Line Two	Suite 1600
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10010
City Area Code	212
Local Phone Number	588-6770
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
General Description of Registrant [Abstract]
Risk Factors [Table Text Block]	RISK FACTORS There have been no material changes to the risk factors discussed in Part I., Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2024. In addition to the other information set forth in this report, you should carefully consider the aforementioned risk factors, which could materially affect our business, financial condition, and/or operating results. These are not the only risks that we face and additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition, and/or operating results.
NAV Per Share	$ 13.79	$ 14.10	$ 14.56	$ 14.88
General Risk [Member]
General Description of Registrant [Abstract]
Risk [Text Block]	RISK FACTORS There have been no material changes to the risk factors discussed in Part I., Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2024. In addition to the other information set forth in this report, you should carefully consider the aforementioned risk factors, which could materially affect our business, financial condition, and/or operating results. These are not the only risks that we face and additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition, and/or operating results.