v3.25.2
Cover
Jun. 30, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Jun. 30, 2025
Entity Registrant Name TPG Twin Brook Capital Income Fund
Entity Incorporation, State or Country Code DE
Entity File Number 000-56502
Entity Tax Identification Number 88-6103622
Entity Address, Address Line One 245 Park Avenue, 26th Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10167
City Area Code 212
Local Phone Number 692-2000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Central Index Key 0001913724
Amendment Flag false