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Goodwill and Other Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets | The patents and intangible assets and related change in carrying values are set forth in the table belows: As of March 31, 2015:
Other Intangible Assets | Gross | Accumulated Amortization | Net | Assumed Useful Life
Gentex Patents | $ | 30,363,189 |  | $ | (11,713,249 | ) | $ | 18,649,940 |  | various
Other Intangible Assets |  |  |  |
HomeLink®Trade Names and Trademarks | $ | 52,000,000 |  | $ | — |  | $ | 52,000,000 |  | Indefinite
HomeLink® Technology | 180,000,000 |  | (22,500,000 | ) | 157,500,000 |  | 12 years
Existing Customer Platforms | 43,000,000 |  | (6,450,000 | ) | 36,550,000 |  | 10 years
Exclusive Licensing Agreement | 96,000,000 |  | — |  | 96,000,000 |  | Indefinite
Total Other Intangible Assets | $ | 371,000,000 |  | $ | (28,950,000 | ) | $ | 342,050,000 |  |
Total Patents & Other Intangible Assets | $ | 401,363,189 |  | $ | (40,663,249 | ) | $ | 360,699,940 |  |
As of December 31, 2014:
Other Intangible Assets | Gross | Accumulated Amortization | Net | Assumed Useful Life
Gentex Patents | $ | 30,132,116 |  | $ | (11,065,153 | ) | $ | 19,066,963 |  | various
HomeLink®Trade Names and Trademarks | $ | 52,000,000 |  | $ | — |  | $ | 52,000,000 |  | Indefinite
HomeLink® Technology | 180,000,000 |  | (18,750,000 | ) | $ | 161,250,000 |  | 12 years
Existing Customer Platforms | 43,000,000 |  | (5,375,000 | ) | $ | 37,625,000 |  | 10 years
Exclusive Licensing Agreement | 96,000,000 |  | — |  | $ | 96,000,000 |  | Indefinite
Total other identifiable intangible assets | $ | 371,000,000 |  | $ | (24,125,000 | ) | $ | 346,875,000 |  |
Total Patents & Other Intangible Assets | $ | 401,132,116 |  | $ | (35,190,153 | ) | $ | 365,941,963 |  |

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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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