v3.25.2
Cover Page
 6 Months Ended
Jun. 30, 2025
Document Information [Line Items]  
Document Type S-1
Entity Registrant Name CIRCLE INTERNET GROUP, INC.
Amendment Flag false
Entity Central Index Key 0001876042
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 99-2840247
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Address, Address Line One One World Trade Center
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10007
City Area Code 332
Local Phone Number 334-0660
Entity Primary SIC Number 6199
Business Contact [Member]  
Document Information [Line Items]  
Entity Address, Address Line One One World Trade Center
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10007
City Area Code 332
Local Phone Number 334-0660
Contact Personnel Name Jeremy Allaire