v3.25.4
Cover
Jan. 28, 2026
Entity Addresses [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jan. 28, 2026
Entity File Number 001-42164
Entity Registrant Name SIM Acquisition Corp. I
Entity Central Index Key 0002014982
Entity Tax Identification Number 35-2838851
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 3835 PGA Boulevard
Entity Address, Address Line Two Suite 109
Entity Address, City or Town Palm Beach Gardens
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33410
City Area Code 786
Local Phone Number 753 9305
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
Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant  
Entity Addresses [Line Items]  
Title of 12(b) Security Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant
Trading Symbol SIMAU
Security Exchange Name NASDAQ
Class A ordinary shares, par value $0.0001 per share  
Entity Addresses [Line Items]  
Title of 12(b) Security Class A ordinary shares, par value $0.0001 per share
Trading Symbol SIMA
Security Exchange Name NASDAQ
Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share  
Entity Addresses [Line Items]  
Title of 12(b) Security Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share
Trading Symbol SIMAW
Security Exchange Name NASDAQ
Former Address [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One 16690 Collins Ave
Entity Address, Address Line Two Suite 1001
Entity Address, City or Town Sunny Isles Beach
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33160