v3.25.2
Cover
Jun. 13, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 13, 2025
Entity File Number 814-01393
Entity Registrant Name Kayne DL 2021, Inc.
Entity Central Index Key 0001850787
Entity Tax Identification Number 86-2440860
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 717 Texas Avenue
Entity Address, Address Line Two Suite 2200
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77002
City Area Code 713
Local Phone Number 493-2020
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 false