v3.26.1
Document and Entity Information
Jun. 24, 2026
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0002052153
Document Type 8-K
Document Period End Date Jun. 24, 2026
Entity Registrant Name Apollo Origination II (UL) Capital Trust
Entity Incorporation State Country Code DE
Entity File Number 000-56723
Entity Tax Identification Number 36-6481177
Entity Address, Address Line One 9 West 57th Street
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10019
City Area Code (212)
Local Phone Number 515-3200
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