Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2024	Aug. 12, 2024
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Document Quarterly Report	true
Document Transition Report	false
Entity Registrant Name	Crescent Capital BDC, Inc.
Entity Central Index Key	0001633336
Current Fiscal Year End Date	--12-31
Entity File Number	814-01132
Entity Incorporation State Country Code	MD
Entity Tax Identification Number	47-3162282
Entity Address Address Line1	11100 Santa Monica Blvd
Entity Address, Address Line Two	Suite 2000
Entity Address City Or Town	Los Angeles
Entity Address State Or Province	CA
Entity Address Postal Zip Code	90025
City Area Code	310
Local Phone Number	235-5900
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		37,061,547
Common Stock
Document Information [Line Items]
Trading Symbol	CCAP
Security12b Title	Common Stock, $0.001 par value per share
Security Exchange Name	NASDAQ
5.00% Notes due 2026
Document Information [Line Items]
Trading Symbol	FCRX
Security12b Title	5.00% Notes due 2026
Security Exchange Name	NYSE