Basis of Presentation	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	BASIS OF PRESENTATIONThe accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and include all of the information and disclosures required by accounting principles generally accepted in the United States of America for interim reporting, which are less than those required for annual reporting. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (all of which are normal and recurring in nature) necessary to present fairly the financial position of Core Molding Technologies, Inc. and its subsidiaries (“Core Molding Technologies” or the “Company”) at March 31, 2023, and the results of operations and cash flows for the three months ended March 31, 2023. The “Notes to Consolidated Financial Statements” contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2022, should be read in conjunction with these consolidated financial statements.Core Molding Technologies and its subsidiaries operate in the engineered materials market as one operating segment as a molder of thermoplastic and thermoset structural products. The Company produces and sells molded products for varied markets, including medium and heavy-duty trucks, power sports, building products, industrial and utilities and other commercial markets. Core Molding Technologies has its headquarters in Columbus, Ohio, and operates six production facilities in the United States, Canada and Mexico.