v3.26.1
N-2 - USD ($)
 3 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Cover [Abstract]        
Entity Central Index Key 0001794776      
Amendment Flag false      
Securities Act File Number 814-01334      
Document Type 10-Q      
Entity Registrant Name Palmer Square Capital BDC Inc.      
Entity Address, Address Line One 1900 Shawnee Mission Parkway      
Entity Address, Address Line Two Suite 315      
Entity Address, City or Town Mission Woods      
Entity Address, State or Province KS      
Entity Address, Postal Zip Code 66205      
City Area Code 816      
Local Phone Number 994-3200      
Entity Emerging Growth Company true      
Entity Ex Transition Period false      
General Description of Registrant [Abstract]        
Investment Owned, Fair Value $ 1,154,636,534 [1] $ 1,203,640,318    
Total Assets 1,166,125,124 1,219,375,759    
Total Net Assets $ 413,782,758 $ 464,123,172 $ 515,807,254 $ 537,844,969
NAV Per Share $ 13.3 $ 14.85 $ 15.85 $ 16.5
[1] As of March 31, 2026, all investments are non-controlled, non-affiliated investments. Non-controlled, non-affiliated investments are defined as investments in which the Company owns less than 5% of the portfolio company’s outstanding voting securities and does not have the power to exercise control over the management or policies of such portfolio company.