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Earnings Per Share of Common Stock (Tables)
9 Months Ended
Sep. 30, 2021
Earnings Per Share [Abstract]  
Schedule basic and Diluted Earnings Per Share
The computations of basic and diluted earnings per share of common stock are noted in the table below. Basic earnings per share of common stock is computed by dividing the net income attributable to California Water Service Group by the weighted average number of common shares outstanding during the period. RSAs are included in the weighted average common shares outstanding because the shares have all the same voting and dividend rights as issued and unrestricted common stock. RSUs are not included in the basic and diluted shares calculation for financial reporting until authorized by the Organization & Compensation Committee of the Board of Directors.
 Three Months Ended September 30
 20212020
(In thousands, except per share data)
Net income$62,499 $96,360 
Net income attributable to noncontrolling interests70 — 
Net income attributable to California Water Service Group$62,429 $96,360 
Weighted average common shares outstanding, basic51,823 49,576 
Weighted average common shares outstanding, dilutive51,823 49,576 
Earnings per share of common stock - basic$1.20 $1.94 
Earnings per share of common stock - diluted $1.20 $1.94 
 Nine Months Ended September 30
 20212020
(In thousands, except per share data)
Net income$97,543 $81,334 
Net loss attributable to noncontrolling interests(79)— 
Net income attributable to California Water Service Group$97,622 $81,334 
Weighted average common shares outstanding, basic51,119 49,034 
Weighted average common shares outstanding, dilutive51,119 49,034 
Earnings per share of common stock - basic$1.91 $1.66 
Earnings per share of common stock - diluted$1.91 $1.66