v3.26.1
Earnings Per Share (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Basic Earnings Per Share    
Net Income Attributable to Gentex Corporation $ 98,455,143 $ 94,874,045
Less: Dividends and undistributed earnings allocated to participating securities 1,561,473 1,340,760
Net Income available to common shareholders $ 96,893,670 $ 93,533,285
Basic weighted average shares outstanding (in shares) 211,453,867 223,522,686
Net income per share - Basic (in dollars per share) [1] $ 0.46 $ 0.42
Diluted Earnings Per Share    
Allocation of Net Income used in basic computation $ 96,893,670 $ 93,533,285
Reallocation of undistributed earnings 10 163
Net Income available to common shareholders - Diluted $ 96,893,680 $ 93,533,448
Number of shares used in basic computation (in shares) 211,453,867 223,522,686
Additional weighted average dilutive common stock equivalents (in shares) 1,873 39,035
Diluted weighted average shares outstanding (in shares) 211,455,740 223,561,721
Net Income per share - Diluted (in dollars per share) [1] $ 0.46 $ 0.42
Shares related to stock plans not included in diluted average common shares outstanding because their effect would be anti-dilutive (in shares) 2,877,663 3,141,060
[1]
(1) Earnings Per Share has been adjusted to exclude the portion of net income allocated to participating securities as a result of share-based payment awards.