v3.26.1
Cover
Jul. 24, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jul. 24, 2026
Entity File Number 000-56776
Entity Registrant Name Eagle Point Trinity Senior Secured Lending Co
Entity Central Index Key 0002027033
Entity Tax Identification Number 99-2899518
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 600 Steamboat Road
Entity Address, Address Line Two Suite 202
Entity Address, City or Town Greenwich
Entity Address, State or Province CT
Entity Address, Postal Zip Code 06830
City Area Code 203
Local Phone Number 340-8500
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period true