Cover Page - USD ($)

12 Months Ended

Dec. 31, 2024

Jan. 31, 2025

Jun. 30, 2024

Cover [Abstract]

Document Type

10-K

Document Annual Report

true

Document Period End Date

Dec. 31, 2024

Current Fiscal Year End Date

--12-31

Document Transition Report

false

Entity File Number

000-10235

Entity Registrant Name

GENTEX CORPORATION

Entity Incorporation, State or Country Code

MI

Entity Tax Identification Number

38-2030505

Entity Address, Address Line One

600 N. Centennial Street,

Entity Address, City or Town

Zeeland,

Entity Address, State or Province

MI

Entity Address, Postal Zip Code

49464

City Area Code

616

Local Phone Number

772-1800

Title of 12(b) Security

Common Stock, par value $.06 per share

Trading Symbol

GNTX

Security Exchange Name

NASDAQ

Entity Well-known Seasoned Issuer

Yes

Entity Voluntary Filers

No

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Filer Category

Large Accelerated Filer

Entity Small Business

false

Entity Emerging Growth Company

false

ICFR Auditor Attestation Flag

true

Document Financial Statement Error Correction Flag

false

Entity Shell Company

false

Entity Public Float

$ 7,743,686,144

Entity Common Stock, Shares Outstanding

227,195,734

Documents Incorporated by Reference

Portions of the Company’s Proxy Statement for its 2025 Annual Meeting of Shareholders are incorporated by reference into Part III.

Entity Central Index Key

0000355811

Document Fiscal Year Focus

2024

Document Fiscal Period Focus

FY

Amendment Flag

false