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Goodwill and Other Intangible Assets (Tables)
 9 Months Ended
Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill The carrying value of Goodwill as of both September 30, 2024 and December 31, 2023 was $340.1 million, as set forth in the table below:
Carrying Amount
Balance as of December 31, 2023$340,105,631 
Acquisitions— 
Divestitures— 
Impairments— 
Other— 
Balance as of September 30, 2024$340,105,631 
Schedule of Intangible Assets
The patents and intangible assets and related change in carrying values are set forth in the tables below:

As of September 30, 2024:
Other Intangible AssetsGrossAccumulated AmortizationNetAssumed Useful Life
Gentex Patents$39,198,259 $(27,882,575)$11,315,684 Various
Other Intangible Assets
HomeLink® Trade Names and Trademarks
$52,000,000 $— $52,000,000 Indefinite
HomeLink® Technology
180,000,000 (165,000,000)15,000,000 12 years
Existing Customer Platforms43,000,000 (43,000,000)— 10 years
Exclusive Licensing Agreement96,000,000 — 96,000,000 Indefinite
eSight Technology12,000,000 (916,667)11,083,333 12 years
eSight Trade Names and Trademarks870,000 (66,458)803,542 12 years
Vaporsens In-Process R&D11,000,000 — 11,000,000 Indefinite
Argil In-Process R&D6,278,132 — 6,278,132 Indefinite
Air-Craftglass In-Process R&D1,507,778 — 1,507,778 Indefinite
Guardian Trade Names1,300,000 (27,083)1,272,917 12 years
Guardian Technology6,800,000 (141,667)6,658,333 12 years
Total Other Intangible Assets$410,755,910 $(209,151,875)$201,604,035 
Total Patents & Other Intangible Assets$449,954,169 $(237,034,450)$212,919,719 
As of December 31, 2023:
Other Intangible Assets
Gross
Accumulated Amortization
Net
Assumed Useful Life
Gentex Patents
$39,199,107 $(27,769,803)$11,429,304 Various
Other Intangible Assets
HomeLink® Trade Names and Trademarks
$52,000,000 $— $52,000,000 Indefinite
HomeLink® Technology
180,000,000 (153,750,000)26,250,000 12 years
Existing Customer Platforms43,000,000 (43,000,000)— 10 years
Exclusive Licensing Agreement
96,000,000 — 96,000,000 Indefinite
eSight Technology12,000,000 — 12,000,000 12 years
eSight Trade Names and Trademarks870,000 — 870,000 12 years
Vaporsens In-Process R&D11,000,000 — 11,000,000 Indefinite
Argil In-Process R&D6,278,132 — 6,278,132 Indefinite
Air-Craftglass In-Process R&D1,507,778 — 1,507,778 Indefinite
Guardian Trade Names1,300,000 — 1,300,000 Indefinite
Guardian In-Process R&D6,800,000 — 6,800,000 Indefinite
Total Other Intangible Assets$410,755,910 $(196,750,000)$214,005,910 
Total Patents & Other Intangible Assets$449,955,017 $(224,519,803)$225,435,214