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Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Calculation of Basic and Diluted Earning Per Share
Basic and diluted earnings per share for the three-month periods ended March 31, 2021 and 2020 are calculated as follows (in thousands, except per share amounts):
Three Months Ended
March 31,
20212020
Basic earnings per share
Numerator:
Net income attributable to Albemarle Corporation$95,677 $107,204 
Denominator:
Weighted-average common shares for basic earnings per share112,592 106,227 
Basic earnings per share$0.85 $1.01 
Diluted earnings per share
Numerator:
Net income attributable to Albemarle Corporation$95,677 $107,204 
Denominator:
Weighted-average common shares for basic earnings per share112,592 106,227 
Incremental shares under stock compensation plans738 285 
Weighted-average common shares for diluted earnings per share113,330 106,512 
Diluted earnings per share$0.84 $1.01