Quarterly report pursuant to Section 13 or 15(d)


Cover - shares
6 Months Ended
Jun. 30, 2022
Aug. 09, 2022
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2022  
Document Transition Report false  
Securities Act File Number 814-00733  
Entity Registrant Name Barings BDC, Inc.  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 06-1798488  
Entity Address, Address Line One 300 South Tryon Street,  
Entity Address, Address Line Two Suite 2500  
Entity Address, City or Town Charlotte  
Entity Address, State or Province NC  
Entity Address, Postal Zip Code 28202  
City Area Code 704  
Local Phone Number 805-7200  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol BBDC  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   109,227,791
Entity Central Index Key 0001379785  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q2