Earnings Per Share (Tables)

3 Months Ended

Aug. 31, 2013

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per share

The following table sets forth the computation of basic and diluted earnings per share using the two-class method for amounts attributable to Cintas’ common shares: 

	Three Months Ended
(In thousands except per share data)	August 31, 2013		August 31, 2012
Basic Earnings per Share
Net income	$	77,754	$	76,733
Less: net income allocated to participating unvested securities	460		365
Net income available to common shareholders	$	77,294	$	76,368
Basic weighted average common shares outstanding	122,130		126,110
Basic earnings per common share	$	0.63	$	0.61
Diluted Earnings per Share
Net income	$	77,754	$	76,733
Less: net income allocated to participating unvested securities	460		365
Net income available to common shareholders	$	77,294	$	76,368
Basic weighted average common shares outstanding	122,130		126,110
Effect of dilutive securities – employee stock options	762		348
Diluted weighted average common shares outstanding	122,892		126,458
Diluted earnings per share	$	0.63	$	0.60