Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

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, 2014, 2013 and 2012 (in thousands, except per share amounts):

	2014		2013		2012
Income from continuing operations attributable to common shareholders	$	397,595	$	406,074	$	387,380
Weighted average common shares outstanding — basic	110,626		109,984		109,510
Net effect of dilutive securities:
Contingently issuable performance shares and restricted stock units	552		822		1,017
Weighted average common shares outstanding — diluted	111,178		110,806		110,527
Earnings per average common share outstanding:
Income from continuing operations attributable to common shareholders — basic	$	3.59	$	3.69	$	3.54
Income from continuing operations attributable to common shareholders — diluted	$	3.58	$	3.66	$	3.50