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Cover Page
May 07, 2024
May 09, 2023
Cover [Abstract]    
Document Type 8-K  
Entity Registrant Name Core Molding Technologies, Inc.  
Entity Incorporation, State or Country Code DE  
Entity File Number 001-12505  
Entity Tax Identification Number 31-1481870  
Entity Address, Address Line One 800 Manor Park Drive  
Entity Address, City or Town Columbus  
Entity Address, State or Province OH  
Entity Address, Postal Zip Code 43228-0183  
City Area Code 614  
Local Phone Number 870-5000  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Title of 12(b) Security   Common Stock, par value $0.01
Trading Symbol   CMT
Security Exchange Name   NYSEAMER
Entity Emerging Growth Company false  
Document Information [Line Items]    
Entity Registrant Name Core Molding Technologies, Inc.  
Entity Central Index Key 0001026655  
Amendment Flag false