Statements of Net Assets Available for Benefits - Mayville Engineering Company, Inc. 401(k) Plan - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Investments at fair value:
Investments at fair value	$ 184,242	$ 156,073
Net assets available for benefits	184,242	156,073
Mutual funds
Investments at fair value:
Investments at fair value	139,903	122,967
Corporate common stock
Investments at fair value:
Investments at fair value	$ 44,339	$ 33,106

Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

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+ Details

- Definition

Amount of asset less liability available to pay benefit of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, aggregation of participants' individual account balances.

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