The calculation of basic earnings per share is based on the weighted average number of common shares considered outstanding during the periods. The calculation of diluted earnings per share reflects the effect of all potentially dilutive securities (principally outstanding stock options and restricted stock grants). The number of weighted average shares used in the calculation of basic earnings per share and diluted earnings per share was as follows:


	Three Months Ended June 30,		Six Months Ended June 30,
	2026	2025	2026	2025
	(In thousands)
Weighted average shares:
Basic shares	229,086	230,818	228,994	230,743
Equity-based compensation plans	769	654	851	764
Diluted shares	229,855	231,472	229,845	231,507

The calculation of diluted earnings per share for the three and six months ended June 30, 2025 excluded an immaterial number of stock options because the exercise prices of these stock options exceeded the average market price of the Company’s common shares, and the effect of their inclusion would have been antidilutive. There were no antidilutive shares for the three and six months ended June 30, 2026.