Earnings Per Share (Tables)

6 Months Ended

Nov. 30, 2017

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 from continuing operations using the two-class method for amounts attributable to Cintas’ common shares: 

	Three Months Ended				Six Months Ended
Basic Earnings per Share from Continuing    Operations(in thousands except per share data)	November 30, 2017		November 30, 2016		November 30, 2017		November 30, 2016
Income from continuing operations	$	137,737	$	121,950	$	298,845	$	258,158
Less: income from continuing operations allocated to participating securities	2,111		1,923		5,298		4,775
Income from continuing operations available to common shareholders	$	135,626	$	120,027	$	293,547	$	253,383
Basic weighted average common shares outstanding	106,340		104,957		106,039		104,719
Basic earnings per share from continuing operations	$	1.27	$	1.15	$	2.77	$	2.42

	Three Months Ended				Six Months Ended
Diluted Earnings per Share from Continuing    Operations(in thousands except per share data)	November 30, 2017		November 30, 2016		November 30, 2017		November 30, 2016
Income from continuing operations	$	137,737	$	121,950	$	298,845	$	258,158
Less: income from continuing operations allocated to participating securities	2,111		1,923		5,298		4,775
Income from continuing operations available to common shareholders	$	135,626	$	120,027	$	293,547	$	253,383
Basic weighted average common shares outstanding	106,340		104,957		106,039		104,719
Effect of dilutive securities – employee stock options	3,478		2,690		2,899		2,559
Diluted weighted average common shares outstanding	109,818		107,647		108,938		107,278
Diluted earnings per share from continuing operations	$	1.24	$	1.12	$	2.69	$	2.36