Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule of earnings per weighted average common share outstanding

The following table presents the calculation of Pinnacle West’s basic and diluted earnings per share for continuing operations attributable to common shareholders for the years ended December 31, 2015, 2014 and 2013 (in thousands, except per share amounts):

	2015		2014		2013
Net income attributable to common shareholders	$	437,257	$	397,595	$	406,074
Weighted average common shares outstanding — basic	111,026		110,626		109,984
Net effect of dilutive securities:
Contingently issuable performance shares and restricted stock units	526		552		822
Weighted average common shares outstanding — diluted	111,552		111,178		110,806
Earnings per average common share attributable to common shareholders — basic	$	3.94	$	3.59	$	3.69
Earnings per average common share attributable to common shareholders — diluted	$	3.92	$	3.58	$	3.66