N-2
$ in Millions

Feb. 20, 2025

USD ($)

Cover [Abstract]

Entity Central Index Key

0001414932

Amendment Flag

false

Securities Act File Number

814-00755

Document Type

8-K

Entity Registrant Name

Oaktree Specialty Lending Corporation

Entity Address, Address Line One

333 South Grand Avenue

Entity Address, Address Line Two

28th Floor

Entity Address, City or Town

Los Angeles

Entity Address, State or Province

CA

Entity Address, Postal Zip Code

90071

City Area Code

213

Local Phone Number

830-6300

Entity Emerging Growth Company

false

Capital Stock, Long-Term Debt, and Other Securities [Abstract]

Long Term Debt [Table Text Block]

On February 20, 2025, Oaktree Specialty Lending Corporation (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) by and among the Company, Oaktree Fund Advisors, LLC, Oaktree Fund Administration, LLC, and SMBC Nikko Securities America, Inc., BNP Paribas Securities Corp., ING Financial Markets LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters, in connection with the issuance and sale of $300.0 million aggregate principal amount of the Company’s 6.340% Notes due 2030 (the “Offering”). The closing of the Offering is expected to occur on February 27, 2025, subject to customary closing conditions. The net proceeds to the Company will be $296.2 million, after deducting the underwriting discount of $3.0 million payable by the Company and estimated Offering expenses of approximately $0.8 million payable by the Company.

Long Term Debt, Title [Text Block]

6.340% Notes due 2030

Long Term Debt, Principal

$ 300.0