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Earnings Per Share | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Earnings Per Share | 18. Earnings Per Share Below is the computation of basic and diluted earnings per share for the years ended December 31, 2023, 2022 and 2021:
(In thousands, except per share amounts) |  | 2023 |  |  | 2022 |  |  | 2021 |
Computation of Basic Earnings per Share |  |  |  |  |  |  |  |  |
Net income attributable to Stepan Company |  | $ | 40,204 |  |  | $ | 147,153 |  |  | $ | 137,804 |
Weighted-average number of shares outstanding |  |  | 22,777 |  |  |  | 22,781 |  |  |  | 22,922 |
Basic earnings per share |  | $ | 1.77 |  |  | $ | 6.46 |  |  | $ | 6.01 |
Computation of Diluted Earnings per Share |  |  |  |  |  |  |  |  |
Net income attributable to Stepan Company |  | $ | 40,204 |  |  | $ | 147,153 |  |  | $ | 137,804 |
Weighted-average number of shares outstanding |  |  | 22,777 |  |  |  | 22,781 |  |  |  | 22,922 |
Add weighted-average net shares from assumed exercise of options (under treasury share method) (1) |  |  | 66 |  |  |  | 104 |  |  |  | 138 |
Add weighted-average net shares related to unvested stock awards (under treasury share method) |  |  | 3 |  |  |  | 1 |  |  |  | 1 |
Add weighted-average net shares from assumed exercise of SARs (under treasury share method) |  |  | 67 |  |  |  | 111 |  |  |  | 166 |
Add weighted-average contingently issuable net shares related to performance stock awards (under treasury share method) |  |  | 33 |  |  |  | 67 |  |  |  | 60 |
Weighted-average shares applicable to diluted earnings |  |  | 22,946 |  |  |  | 23,064 |  |  |  | 23,287 |
Diluted earnings per share |  | $ | 1.75 |  |  | $ | 6.38 |  |  | $ | 5.92 |
(1) Options/SARs to purchase 672,485, 343,715 and 103,182 shares of the Company’s common stock were excluded from the computations of diluted earnings per share for the years ended December 31, 2023, 2022 and 2021, respectively. The options’/SARs’ exercise prices were greater than the average market price for the Company’s common stock and inclusion of the instruments would have had an antidilutive effect on the computations of earnings per share.

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