Earnings per Share (Tables)

9 Months Ended

Feb. 28, 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				Nine Months Ended
(In thousands except per share data)	February 28, 2013		February 29, 2012		February 28, 2013		February 29, 2012
Basic Earnings per Share
Net income	$	74,705	$	76,035	$	229,465	$	219,023
Less dividends to:
Common shares	$	—	$	—	$	78,866	$	70,055
Unvested shares	—		—		878		765
Total dividends	$	—	$	—	$	79,744	$	70,820
Undistributed net income	$	74,705	$	76,035	$	149,721	$	148,203
Less: net income allocated to participating unvested securities	517		556		1,048		1,096
Net income available to common shareholders	$	74,188	$	75,479	$	148,673	$	147,107
Basic weighted average common shares outstanding	123,120		129,735		124,483		130,261
Basic earnings per common share:
Common shares - distributed earnings	$	0.00	$	0.00	$	0.64	$	0.54
Common shares - undistributed earnings	0.60		0.58		1.20		1.13
Total common shares	$	0.60	$	0.58	$	1.84	$	1.67
Unvested shares - distributed earnings	$	0.00	$	0.00	$	0.64	$	0.54
Unvested shares - undistributed earnings	0.60		0.58		1.20		1.13
Total unvested shares	$	0.60	$	0.58	$	1.84	$	1.67

	Three Months Ended				Nine Months Ended
(In thousands except per share data)	February 28, 2013		February 29, 2012		February 28, 2013		February 29, 2012
Diluted Earnings per Share
Net income	$	74,705	$	76,035	$	229,465	$	219,023
Less dividends to:
Common shares	$	—	$	—	$	78,866	$	70,055
Unvested shares	—		—		878		765
Total dividends	$	—	$	—	$	79,744	$	70,820
Undistributed net income	$	74,705	$	76,035	$	149,721	$	148,203
Less: net income allocated to participating unvested securities	517		556		1,048		1,096
Net income available to common shareholders	$	74,188	$	75,479	$	148,673	$	147,107
Basic weighted average common shares outstanding	123,120		129,735		124,483		130,261
Effect of dilutive securities – employee stock options	637		210		418		60
Diluted weighted average common shares outstanding	123,757		129,945		124,901		130,321
Diluted earnings per share:
Common shares - distributed earnings	$	0.00	$	0.00	$	0.64	$	0.54
Common shares - undistributed earnings	0.60		0.58		1.19		1.13
Total common shares	$	0.60	$	0.58	$	1.83	$	1.67
Unvested shares - distributed earnings	$	0.00	$	0.00	$	0.64	$	0.54
Unvested shares - undistributed earnings	0.60		0.58		1.19		1.13
Total unvested shares	$	0.60	$	0.58	$	1.83	$	1.67