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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Calculation of Basic and Diluted Earnings Per Share
Basic and diluted earnings per share are calculated as follows (in thousands, except per share amounts):
Year Ended December 31,
202020192018
Basic earnings per share
Numerator:
Net income attributable to Albemarle Corporation$375,764 $533,228 $693,562 
Denominator:
Weighted-average common shares for basic earnings per share106,402 105,949 108,427 
Basic earnings per share$3.53 $5.03 $6.40 
Diluted earnings per share
Numerator:
Net income attributable to Albemarle Corporation$375,764 $533,228 $693,562 
Denominator:
Weighted-average common shares for basic earnings per share106,402 105,949 108,427 
Incremental shares under stock compensation plans406 372 1,031 
Weighted-average common shares for diluted earnings per share106,808 106,321 109,458 
Diluted earnings per share$3.52 $5.02 $6.34