v3.25.4
Document and Entity Information
Mar. 03, 2026
Document and Entity Information [Abstract]  
Amendment Flag false
Entity Central Index Key 0001766368
Document Type 8-K
Document Period End Date Mar. 03, 2026
Entity Registrant Name Mayville Engineering Company, Inc.
Entity Incorporation, State or Country Code WI
Entity File Number 001-38894
Entity Tax Identification Number 39-0944729
Entity Address, Address Line One 135 S. 84th Street, Suite 300
Entity Address, City or Town Milwaukee
Entity Address State Or Province WI
Entity Address, Postal Zip Code 53214
City Area Code (414)
Local Phone Number 381-2860
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, no par value
Trading Symbol MEC
Security Exchange Name NYSE
Entity Emerging Growth Company false