Fundies.
English

Segment disclosures

Company overview

GENTEX CORPORATION

Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.

Revenue · Reported segment facts

53 dimension combinations 508 retained observations 29 reported periods

Counts describe retained dimensioned rows only. Periods and members can change across reports, and this view does not infer missing values or expected segment totals.

Operating Segments · Automotive Products Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30560201415 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2026-01-01 – 2026-06-301141007327 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2026-01-01 – 2026-03-31580805912 USD2026-05-06 · 19:54:16.000ZOpen filing evidence
2025-01-01 – 2025-12-312255904839 USD2026-02-25 · 01:18:31.000ZOpen filing evidence
2025-07-01 – 2025-09-30573660188 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2025-01-01 – 2025-09-301715653473 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2025-04-01 – 2025-06-30578129026 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2025-01-01 – 2025-06-301141993285 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2025-01-01 – 2025-03-31563864259 USD2026-05-06 · 19:54:16.000ZOpen filing evidence
2024-01-01 – 2024-12-312264724564 USD2026-02-25 · 01:18:31.000ZOpen filing evidence
2024-07-01 – 2024-09-30596519398 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2024-01-01 – 2024-09-301733411689 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2024-04-01 – 2024-06-30559290095 USD2025-08-08 · 22:00:14.000ZOpen filing evidence
2024-01-01 – 2024-06-301136892291 USD2025-08-08 · 22:00:14.000ZOpen filing evidence
2024-01-01 – 2024-03-31577602196 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2023-01-01 – 2023-12-312254660291 USD2026-02-25 · 01:18:31.000ZOpen filing evidence
2022-01-01 – 2022-12-311874742458 USD2025-02-26 · 01:03:10.000ZOpen filing evidence

Operating Segments · Premium Audio Products Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:PremiumAudioProductsSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3051687407 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2026-01-01 – 2026-06-30103558368 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2026-01-01 – 2026-03-3151870961 USD2026-05-06 · 19:54:16.000ZOpen filing evidence
2025-01-01 – 2025-12-31151298912 USD2026-02-25 · 01:18:31.000ZOpen filing evidence
2025-07-01 – 2025-09-3042992354 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2025-01-01 – 2025-09-3087482951 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2025-04-01 – 2025-06-3044490597 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2025-01-01 – 2025-06-3044490597 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-05-06 · 19:54:16.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-25 · 01:18:31.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-08-08 · 22:00:14.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-08-08 · 22:00:14.000ZOpen filing evidence
2023-01-01 – 2023-12-310 USD2026-02-25 · 01:18:31.000ZOpen filing evidence

Operating Segments · All Other Segments

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3039410883 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2026-01-01 – 2026-06-3082177136 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2026-01-01 – 2026-03-3142766252 USD2026-05-06 · 19:54:16.000ZOpen filing evidence
2025-01-01 – 2025-12-31127065214 USD2026-02-25 · 01:18:31.000ZOpen filing evidence
2025-07-01 – 2025-09-3038583513 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2025-01-01 – 2025-09-3086730931 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2025-04-01 – 2025-06-3035238587 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2025-01-01 – 2025-06-3048147418 USD2026-08-04 · 23:25:42.000ZOpen filing evidence
2025-01-01 – 2025-03-3112908831 USD2026-05-06 · 19:54:16.000ZOpen filing evidence
2024-01-01 – 2024-12-3148589769 USD2026-02-25 · 01:18:31.000ZOpen filing evidence
2024-07-01 – 2024-09-3012006379 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2024-01-01 – 2024-09-3038265077 USD2025-11-07 · 21:26:16.000ZOpen filing evidence
2024-04-01 – 2024-06-3013635683 USD2025-08-08 · 22:00:14.000ZOpen filing evidence
2024-01-01 – 2024-06-3026258698 USD2025-08-08 · 22:00:14.000ZOpen filing evidence
2024-01-01 – 2024-03-3112623015 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2023-01-01 – 2023-12-3144554753 USD2026-02-25 · 01:18:31.000ZOpen filing evidence
2022-01-01 – 2022-12-3144215585 USD2025-02-26 · 01:03:10.000ZOpen filing evidence

Aerospace Products · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:AerospaceProductsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-304272033 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-09-3016329426 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-07-01 – 2023-09-306186428 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-09-3013567766 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-04-01 – 2023-06-303344168 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2023-01-01 – 2023-06-307381338 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-07-01 – 2022-09-302214762 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-01-01 – 2022-09-304891721 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-04-01 – 2022-06-30826425 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-06-302676960 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-03-311850536 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2021-07-01 – 2021-09-302374332 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-09-305740288 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-03-312303245 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2020-07-01 – 2020-09-303586694 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-01-01 – 2020-09-3014344252 USD2021-11-05 · 17:15:33.000ZOpen filing evidence

Automotive Mirrors And Electronics · Automotive Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:AutomotiveMirrorsAndElectronicsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-312145847699 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-01-01 – 2023-12-312128473563 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-01-01 – 2022-12-311742196401 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2021-01-01 – 2021-12-311563424443 USD2024-02-23 · 02:01:04.000ZOpen filing evidence

Automotive Mirrors Electronics · Automotive Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:AutomotiveMirrorsElectronicsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-31530131429 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2024-07-01 – 2024-09-30559477924 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-09-301640221054 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-04-01 – 2024-06-30530558700 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-06-301080743130 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-03-31550184430 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2023-07-01 – 2023-09-30531423832 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-09-301577792206 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-04-01 – 2023-06-30540636798 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-06-301046368374 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2022-04-01 – 2022-06-30419492115 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2022-01-01 – 2022-06-30843118604 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2022-01-01 – 2022-03-31423626489 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2021-01-01 – 2021-12-311563424443 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2021-04-01 – 2021-06-30390074655 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-06-30825581585 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-03-31435506930 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2020-01-01 – 2020-12-311520628604 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2020-04-01 – 2020-06-30210600540 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-06-30611685854 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2019-01-01 – 2019-12-311638600272 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2018-01-01 – 2018-12-311598589777 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Automotive Mirrors · Automotive Products Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:AutomotiveMirrorsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-312145847699 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-01-01 – 2023-12-312128473563 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-01-01 – 2022-12-311742196401 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2021-01-01 – 2021-12-311563424443 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-01-01 – 2020-12-311520628604 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2019-01-01 – 2019-12-311638600272 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-311598589777 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2017-01-01 – 2017-12-311573222820 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Automotive Products · Automotive Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:AutomotiveProductsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-31563864259 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2024-07-01 – 2024-09-30596519398 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-09-301733411689 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-03-31577602196 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2023-07-01 – 2023-09-30564510277 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-09-301676043013 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-03-31537422988 USD2024-05-03 · 18:17:46.000ZOpen filing evidence

Biometric Products · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:BiometricProductsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-31913240 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2024-01-01 – 2024-03-310 USD2025-05-06 · 22:08:32.000ZOpen filing evidence

Biometrics · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:BiometricsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-31156491 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-01-01 – 2023-12-310 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2025-02-26 · 01:03:10.000ZOpen filing evidence

Fire Protection Products · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:FireProtectionProductsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-316717770 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2024-01-01 – 2024-12-3126845936 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2024-07-01 – 2024-09-306924748 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-09-3021114450 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-04-01 – 2024-06-307353664 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-06-3014189702 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-03-316836038 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2023-01-01 – 2023-12-3125927018 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-07-01 – 2023-09-305151785 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-09-3020471868 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-04-01 – 2023-06-306018930 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-06-3015320083 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2022-01-01 – 2022-12-3138238092 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-07-01 – 2022-09-3010484680 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-01-01 – 2022-09-3028577916 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-04-01 – 2022-06-309645549 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2022-01-01 – 2022-06-3018093236 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-12-3125048697 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-04-01 – 2021-06-306319662 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-06-3012123820 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2019-01-01 – 2019-12-3123740261 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2018-01-01 – 2018-12-3122109784 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Fire Protection Products · All Other Segments

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:FireProtectionProductsMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-3138238092 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2021-01-01 – 2021-12-3125048697 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-01-01 – 2020-12-3122716985 USD2023-02-23 · 00:59:17.000ZOpen filing evidence

Home Link Modules · Automotive Products Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:HomeLinkModulesMember;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-31118876865 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-01-01 – 2023-12-31126186728 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-01-01 – 2022-12-31132546057 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2021-01-01 – 2021-12-31133763591 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31127569539 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2019-01-01 – 2019-12-31171936615 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-31192608519 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2017-01-01 – 2017-12-31184904648 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Home Link Modules · Automotive Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:HomeLinkModulesMember;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-3133732830 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2024-01-01 – 2024-12-31118876865 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2024-07-01 – 2024-09-3037041474 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-09-3093190635 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-04-01 – 2024-06-3028731395 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-06-3056149161 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-03-3127417766 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2023-01-01 – 2023-12-31126186728 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-07-01 – 2023-09-3033086445 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-09-3098250807 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-04-01 – 2023-06-3033472950 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-06-3065164362 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-03-3131691412 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2022-01-01 – 2022-12-31132546057 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-07-01 – 2022-09-3032164193 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2022-01-01 – 2022-09-3099949171 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2022-04-01 – 2022-06-3033458913 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2022-01-01 – 2022-06-3067784977 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2022-01-01 – 2022-03-3134326065 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2021-01-01 – 2021-12-31133763591 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2021-07-01 – 2021-09-3030922736 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-09-30101581239 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-04-01 – 2021-06-3030547998 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-06-3070658504 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-03-3140110506 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2020-01-01 – 2020-12-31127569539 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2019-01-01 – 2019-12-31171936615 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2018-01-01 – 2018-12-31192608519 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Medical · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:MedicalMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-311379651 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-01-01 – 2023-12-3144786 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2025-02-26 · 01:03:10.000ZOpen filing evidence

Medical Product · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:MedicalProductMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-30809598 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-09-30821201 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-11-01 · 21:20:35.000ZOpen filing evidence

Medical Products · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:MedicalProductsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-31386835 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2024-01-01 – 2024-03-3116177 USD2025-05-06 · 22:08:32.000ZOpen filing evidence

Nanofiber Products · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:NanofiberProductsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-310 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-01-01 – 2023-12-310 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2021-01-01 – 2021-12-3118400 USD2024-02-23 · 02:01:04.000ZOpen filing evidence

Nanofiber Products · All Other Segments

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:NanofiberProductsMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-310 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2021-01-01 – 2021-12-3118400 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-01-01 – 2020-12-310 USD2023-02-23 · 00:59:17.000ZOpen filing evidence

Other Products · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:OtherProductsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-3112908831 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2024-07-01 – 2024-09-3012006379 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-09-3038265077 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-03-3112623015 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2023-07-01 – 2023-09-3011338213 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-09-3034039634 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2019-01-01 – 2019-12-3148360519 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2018-01-01 – 2018-12-3142865401 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2017-01-01 – 2017-12-3136745110 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Other Products · All Other Segments

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:OtherProductsMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-3148589769 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-01-01 – 2023-12-3144554753 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-01-01 – 2022-12-3144215585 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2021-01-01 – 2021-12-3133981895 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-01-01 – 2020-12-3139991262 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2019-01-01 – 2019-12-3148360519 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-3142865401 USD2021-02-22 · 23:31:10.000ZOpen filing evidence

Windows Product · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:WindowsProductMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-314890986 USD2025-05-06 · 22:08:32.000ZOpen filing evidence
2024-01-01 – 2024-03-315770800 USD2025-05-06 · 22:08:32.000ZOpen filing evidence

Windows Products · Other Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:WindowsProductsMember;us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-3120207691 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-01-01 – 2023-12-3118582949 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-01-01 – 2022-12-315977493 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2021-01-01 – 2021-12-318914798 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2019-01-01 – 2019-12-3124620258 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2018-01-01 – 2018-12-3120755617 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Windows Products · All Other Segments

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=gntx:WindowsProductsMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-315977493 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2021-01-01 – 2021-12-318914798 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-01-01 – 2020-12-3117274277 USD2023-02-23 · 00:59:17.000ZOpen filing evidence

DE · Automotive Products Segment

Statement Geographical · Statement Business Segments

Source dimensions srt:StatementGeographicalAxis=country:DE;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-31234994551 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31228652827 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2019-01-01 – 2019-12-31296276971 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-31333002878 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2017-01-01 – 2017-12-31351123204 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

JP · Automotive Products Segment

Statement Geographical · Statement Business Segments

Source dimensions srt:StatementGeographicalAxis=country:JP;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-31211417475 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31216100530 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2019-01-01 – 2019-12-31225577146 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-31209311790 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2017-01-01 – 2017-12-31185261067 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

MX · Automotive Products Segment

Statement Geographical · Statement Business Segments

Source dimensions srt:StatementGeographicalAxis=country:MX;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-31111761245 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31127157684 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2019-01-01 – 2019-12-31160967900 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-31106111515 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2017-01-01 – 2017-12-3193603796 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

US · Automotive Products Segment

Statement Geographical · Statement Business Segments

Source dimensions srt:StatementGeographicalAxis=country:US;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-31542690346 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31519337271 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2019-01-01 – 2019-12-31569939756 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-31583672971 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2017-01-01 – 2017-12-31567492812 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Other Countries · Automotive Products Segment

Statement Geographical · Statement Business Segments

Source dimensions srt:StatementGeographicalAxis=gntx:OtherCountriesMember;us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-31596324417 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31556949831 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2019-01-01 – 2019-12-31557775114 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-31559099142 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2017-01-01 – 2017-12-31560646589 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Automotive Products Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-312264724564 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2024-07-01 – 2024-09-30596519398 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-09-301733411689 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-04-01 – 2024-06-30559290095 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-06-301136892291 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-03-31577602196 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2023-01-01 – 2023-12-312254660291 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-07-01 – 2023-09-30564510277 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-09-301676043013 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-04-01 – 2023-06-30574109748 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-06-301111532736 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-03-31537422988 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2022-01-01 – 2022-12-311874742458 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-07-01 – 2022-09-30480937253 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-01-01 – 2022-09-301391840835 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-04-01 – 2022-06-30452951028 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-06-30910903581 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-03-31457952554 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2021-01-01 – 2021-12-311697188034 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-07-01 – 2021-09-30391338185 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-09-301287578273 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-04-01 – 2021-06-30420622653 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-06-30896240089 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-03-31475617436 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2020-01-01 – 2020-12-311648198143 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-07-01 – 2020-09-30464673587 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-01-01 – 2020-09-301126597020 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-04-01 – 2020-06-30222067846 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-06-30661923434 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-03-31439855587 USD2021-05-06 · 17:01:19.000ZOpen filing evidence
2019-01-01 – 2019-12-311810536887 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-311791198296 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2017-01-01 – 2017-12-311758127468 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Automotive Products Segment · Automotive Mirrors

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember;srt:ProductOrServiceAxis=gntx:AutomotiveMirrorsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-312128473563 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-311742196401 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-311563424443 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2020-01-01 – 2020-12-311520628604 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2019-01-01 – 2019-12-311638600272 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2018-01-01 – 2018-12-311598589777 USD2021-02-22 · 23:31:10.000ZOpen filing evidence

Automotive Products Segment · Home Link Modules

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember;srt:ProductOrServiceAxis=gntx:HomeLinkModulesMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31126186728 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-31132546057 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-31133763591 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31127569539 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2019-01-01 – 2019-12-31171936615 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2018-01-01 – 2018-12-31192608519 USD2021-02-22 · 23:31:10.000ZOpen filing evidence

Automotive Products Segment · DE

Statement Business Segments · Statement Geographical

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember;srt:StatementGeographicalAxis=country:DE
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31294529611 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-31266498398 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-31234994551 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31228652827 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2019-01-01 – 2019-12-31296276971 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2018-01-01 – 2018-12-31333002878 USD2021-02-22 · 23:31:10.000ZOpen filing evidence

Automotive Products Segment · JP

Statement Business Segments · Statement Geographical

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember;srt:StatementGeographicalAxis=country:JP
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31323872022 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-31234888653 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-31211417475 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31216100530 USD2023-02-23 · 00:59:17.000ZOpen filing evidence

Automotive Products Segment · KP

Statement Business Segments · Statement Geographical

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember;srt:StatementGeographicalAxis=country:KP
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31149554788 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-3195395479 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-3167219836 USD2024-02-23 · 02:01:04.000ZOpen filing evidence

Automotive Products Segment · MX

Statement Business Segments · Statement Geographical

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember;srt:StatementGeographicalAxis=country:MX
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31142082011 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-31121553711 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-31111761245 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31127157684 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2019-01-01 – 2019-12-31160967900 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2018-01-01 – 2018-12-31106111515 USD2021-02-22 · 23:31:10.000ZOpen filing evidence

Automotive Products Segment · US

Statement Business Segments · Statement Geographical

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember;srt:StatementGeographicalAxis=country:US
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31688164335 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-31579531611 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-31542690346 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31519337271 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2019-01-01 – 2019-12-31569939756 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2018-01-01 – 2018-12-31583672971 USD2021-02-22 · 23:31:10.000ZOpen filing evidence

Automotive Products Segment · Other Countries

Statement Business Segments · Statement Geographical

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveProductsSegmentMember;srt:StatementGeographicalAxis=gntx:OtherCountriesMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31656457524 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-31576874606 RestatedUSD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-31529104581 RestatedUSD2024-02-23 · 02:01:04.000ZOpen filing evidence
2020-01-01 – 2020-12-31556949831 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2019-01-01 – 2019-12-31557775114 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2018-01-01 – 2018-12-31559099142 USD2021-02-22 · 23:31:10.000ZOpen filing evidence

Automotive Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-312264724564 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-01-01 – 2023-12-312254660291 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-07-01 – 2023-09-30564510277 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2023-01-01 – 2023-09-301676043013 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2023-04-01 – 2023-06-30574109748 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2023-01-01 – 2023-06-301111532736 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2023-01-01 – 2023-03-31537422988 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2022-01-01 – 2022-12-311874742458 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-07-01 – 2022-09-30480937253 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-01-01 – 2022-09-301391840835 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-04-01 – 2022-06-30452951028 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-06-30910903581 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-03-31457952554 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2021-01-01 – 2021-12-311697188034 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-07-01 – 2021-09-30391338185 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-09-301287578273 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-04-01 – 2021-06-30420622653 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-06-30896240089 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-03-31475617436 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2020-01-01 – 2020-12-311648198143 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-07-01 – 2020-09-30464673587 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-01-01 – 2020-09-301126597020 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-04-01 – 2020-06-30222067846 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-06-30661923434 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-03-31439855587 USD2021-05-06 · 17:01:19.000ZOpen filing evidence
2019-01-01 – 2019-12-311810536887 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2018-01-01 – 2018-12-311791198296 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Automotive Segment · Automotive Mirrors Electronics

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveSegmentMember;srt:ProductOrServiceAxis=gntx:AutomotiveMirrorsElectronicsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31550184430 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2023-07-01 – 2023-09-30531423832 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2023-01-01 – 2023-09-301577792206 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2023-04-01 – 2023-06-30540636798 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2023-01-01 – 2023-06-301046368374 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2023-01-01 – 2023-03-31505731576 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2022-01-01 – 2022-12-311742196401 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2022-07-01 – 2022-09-30448773060 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-01-01 – 2022-09-301291891664 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-04-01 – 2022-06-30419492115 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-06-30843118604 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-03-31423626489 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2021-01-01 – 2021-12-311563424443 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2021-07-01 – 2021-09-30360415449 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-09-301185997034 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-03-31435506930 USD2021-05-06 · 17:01:19.000ZOpen filing evidence
2020-01-01 – 2020-12-311520628604 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-07-01 – 2020-09-30427426159 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-01-01 – 2020-09-301039112012 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-01-01 – 2020-03-31401085314 USD2021-05-06 · 17:01:19.000ZOpen filing evidence
2019-01-01 – 2019-12-311638600272 USD2021-02-22 · 23:31:10.000ZOpen filing evidence

Automotive Segment · Automotive Products

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveSegmentMember;srt:ProductOrServiceAxis=gntx:AutomotiveProductsMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-30559290095 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-06-301136892291 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-04-01 – 2023-06-30574109748 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-06-301111532736 USD2024-08-02 · 17:47:07.000ZOpen filing evidence

Automotive Segment · Home Link Modules

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:AutomotiveSegmentMember;srt:ProductOrServiceAxis=gntx:HomeLinkModulesMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31126186728 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2023-07-01 – 2023-09-3033086445 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2023-01-01 – 2023-09-3098250807 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2023-04-01 – 2023-06-3033472950 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2023-01-01 – 2023-06-3065164362 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2023-01-01 – 2023-03-3131691412 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2022-01-01 – 2022-12-31132546057 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-07-01 – 2022-09-3032164193 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-01-01 – 2022-09-3099949171 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-04-01 – 2022-06-3033458913 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-06-3067784977 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-03-3134326065 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2021-01-01 – 2021-12-31133763591 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-07-01 – 2021-09-3030922736 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2021-01-01 – 2021-09-30101581239 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2021-04-01 – 2021-06-3030547998 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2021-01-01 – 2021-06-3070658504 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2021-01-01 – 2021-03-3140110506 USD2021-05-06 · 17:01:19.000ZOpen filing evidence
2020-01-01 – 2020-12-31127569539 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-07-01 – 2020-09-3037247428 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-01-01 – 2020-09-3087485008 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-04-01 – 2020-06-3011467306 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-06-3050237580 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-03-3138770273 USD2021-05-06 · 17:01:19.000ZOpen filing evidence

Other Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-3148589769 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2024-04-01 – 2024-06-3013635683 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-06-3026258698 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-03-3112623015 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2023-01-01 – 2023-12-3144554753 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2023-07-01 – 2023-09-3011338213 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2023-01-01 – 2023-09-3034039634 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2023-04-01 – 2023-06-309363098 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-06-3022701421 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-03-3113338323 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2022-01-01 – 2022-12-3144215585 USD2025-02-26 · 01:03:10.000ZOpen filing evidence
2022-07-01 – 2022-09-3012699442 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-01-01 – 2022-09-3033469637 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-04-01 – 2022-06-3010471974 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-06-3020770196 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-03-3110298222 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2021-01-01 – 2021-12-3133981895 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-07-01 – 2021-09-308260559 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-09-3023750336 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-04-01 – 2021-06-307382373 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-06-3015489776 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-03-318107403 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2020-07-01 – 2020-09-309964997 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-01-01 – 2020-09-3031728846 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-04-01 – 2020-06-307857710 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-06-3021763848 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-03-3113906139 USD2021-05-06 · 17:01:19.000ZOpen filing evidence
2019-01-01 – 2019-12-3148360519 USD2020-02-26 · 23:45:53.000ZOpen filing evidence
2018-01-01 – 2018-12-3142865401 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

Other Segment · Aerospace Products

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember;srt:ProductOrServiceAxis=gntx:AerospaceProductsMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-306286593 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-06-3012057394 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-03-315770800 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2023-04-01 – 2023-06-303344168 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-06-307381338 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-03-314037170 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2022-04-01 – 2022-06-30826425 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2022-01-01 – 2022-06-302676960 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2022-01-01 – 2022-03-311850536 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2021-04-01 – 2021-06-301062711 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-06-303365956 USD2022-08-03 · 23:20:39.000ZOpen filing evidence

Other Segment · Fire Protection Products

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember;srt:ProductOrServiceAxis=gntx:FireProtectionProductsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-316836038 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2023-04-01 – 2023-06-306018930 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2023-01-01 – 2023-06-3015320083 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2023-01-01 – 2023-03-319301153 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2022-07-01 – 2022-09-3010484680 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2022-01-01 – 2022-09-3028577916 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2022-04-01 – 2022-06-309645549 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-06-3018093236 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-03-318447686 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2021-07-01 – 2021-09-305886227 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-09-3018010048 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-04-01 – 2021-06-306319662 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2021-01-01 – 2021-06-3012123820 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2021-01-01 – 2021-03-315804158 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2020-07-01 – 2020-09-306378303 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-01-01 – 2020-09-3017384594 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-04-01 – 2020-06-304837540 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-06-3011006291 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-03-316168751 USD2021-05-06 · 17:01:19.000ZOpen filing evidence

Other Segment · Medical

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember;srt:ProductOrServiceAxis=gntx:MedicalMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-3144786 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-310 USD2024-02-23 · 02:01:04.000ZOpen filing evidence

Other Segment · Medical Product

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember;srt:ProductOrServiceAxis=gntx:MedicalProductMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-30-4574 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-06-3011603 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-03-3116177 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2023-04-01 – 2023-06-300 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-05-03 · 18:17:46.000ZOpen filing evidence

Other Segment · Windows Products

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gntx:OtherSegmentMember;srt:ProductOrServiceAxis=gntx:WindowsProductsMember
PeriodValueUnitFiledEvidence
2021-04-01 – 2021-06-301062711 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2021-01-01 – 2021-06-303365956 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2021-01-01 – 2021-03-312303245 USD2021-05-06 · 17:01:19.000ZOpen filing evidence
2020-04-01 – 2020-06-303020170 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-06-3010757557 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-03-317737388 USD2021-05-06 · 17:01:19.000ZOpen filing evidence

All Other Segments

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-3012006379 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-01-01 – 2024-09-3038265077 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2024-04-01 – 2024-06-3013635683 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-06-3026258698 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2024-01-01 – 2024-03-3112623015 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2023-01-01 – 2023-12-3144554753 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2023-07-01 – 2023-09-3011338213 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-01-01 – 2023-09-3034039634 USD2024-11-01 · 21:20:35.000ZOpen filing evidence
2023-04-01 – 2023-06-309363098 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-06-3022701421 USD2024-08-02 · 17:47:07.000ZOpen filing evidence
2023-01-01 – 2023-03-3113338323 USD2024-05-03 · 18:17:46.000ZOpen filing evidence
2022-01-01 – 2022-12-3144215585 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-07-01 – 2022-09-3012699442 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-01-01 – 2022-09-3033469637 USD2023-11-03 · 21:46:17.000ZOpen filing evidence
2022-04-01 – 2022-06-3010471974 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-06-3020770196 USD2023-08-03 · 19:30:18.000ZOpen filing evidence
2022-01-01 – 2022-03-3110298222 USD2023-05-04 · 19:28:34.000ZOpen filing evidence
2021-01-01 – 2021-12-3133981895 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-07-01 – 2021-09-308260559 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-01-01 – 2021-09-3023750336 USD2022-11-04 · 17:45:31.000ZOpen filing evidence
2021-04-01 – 2021-06-307382373 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-06-3015489776 USD2022-08-03 · 23:20:39.000ZOpen filing evidence
2021-01-01 – 2021-03-318107403 USD2022-05-05 · 19:09:15.000ZOpen filing evidence
2020-01-01 – 2020-12-3139991262 USD2023-02-23 · 00:59:17.000ZOpen filing evidence
2020-07-01 – 2020-09-309964997 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-01-01 – 2020-09-3031728846 USD2021-11-05 · 17:15:33.000ZOpen filing evidence
2020-04-01 – 2020-06-307857710 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-06-3021763847 USD2021-08-05 · 16:59:33.000ZOpen filing evidence
2020-01-01 – 2020-03-3113906139 USD2021-05-06 · 17:01:19.000ZOpen filing evidence
2019-01-01 – 2019-12-3148360519 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2018-01-01 – 2018-12-3142865401 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2017-01-01 – 2017-12-3136745110 USD2020-02-26 · 23:45:53.000ZOpen filing evidence

All Other Segments · Fire Protection Products

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember;srt:ProductOrServiceAxis=gntx:FireProtectionProductsMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-3125048697 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2020-01-01 – 2020-12-3122716985 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2019-01-01 – 2019-12-3123740261 USD2021-02-22 · 23:31:10.000ZOpen filing evidence

All Other Segments · Nanofiber Products

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember;srt:ProductOrServiceAxis=gntx:NanofiberProductsMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-3118400 USD2022-02-23 · 21:59:04.000ZOpen filing evidence
2020-01-01 – 2020-12-310 USD2022-02-23 · 21:59:04.000ZOpen filing evidence

All Other Segments · Other Products

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember;srt:ProductOrServiceAxis=gntx:OtherProductsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-3144554753 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2022-01-01 – 2022-12-3144215585 USD2024-02-23 · 02:01:04.000ZOpen filing evidence
2021-01-01 – 2021-12-3133981895 USD2024-02-23 · 02:01:04.000ZOpen filing evidence

All Other Segments · Windows Products

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:AllOtherSegmentsMember;srt:ProductOrServiceAxis=gntx:WindowsProductsMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-12-3117274277 USD2021-02-22 · 23:31:10.000ZOpen filing evidence
2019-01-01 – 2019-12-3124620258 USD2021-02-22 · 23:31:10.000ZOpen filing evidence