Operating Segment Information (Tables)

12 Months Ended

May 31, 2018

Segment Reporting [Abstract]

Information Related to Operating Segments

Information related to the operations of Cintas' operating segments is set forth below:

(In thousands)	Uniform Rental and Facility Services		First Aid  and Safety Services		All Other		Corporate (1)			Total
May 31, 2018
Revenue	$	5,247,124	$	564,706	$	664,802	$	—		$	6,476,632
Gross margin	$	2,360,165	$	265,785	$	282,573	$	—		$	2,908,523
Selling and administrative expenses	1,500,644		190,567		225,581		—			1,916,792
G&K Services, Inc. transaction and    integration expenses	41,897		—		—		—			41,897
Interest expense, net	—		—		—		108,833			108,833
Income before income taxes	$	817,624	$	75,218	$	56,992	$	(108,833	)	$	841,001
Depreciation and amortization	$	236,773	$	21,898	$	20,745	$	—		$	279,416
Capital expenditures	$	225,694	$	27,932	$	18,073	$	—		$	271,699
Total assets	$	5,977,314	$	471,165	$	371,011	$	138,724		$	6,958,214
May 31, 2017
Revenue	$	4,202,490	$	508,233	$	612,658	$	—		$	5,323,381
Gross margin	$	1,894,716	$	230,166	$	255,413	$	—		$	2,380,295
Selling and administrative expenses	1,138,345		177,378		211,657		—			1,527,380
G&K Services, Inc. transaction and    integration expenses	79,224		—		—		—			79,224
Interest expense, net	—		—		—		86,287			86,287
Income before income taxes	$	677,147	$	52,788	$	43,756	$	(86,287	)	$	687,404
Depreciation and amortization	$	156,998	$	19,962	$	17,905	$	1,730		$	196,595
Capital expenditures	$	232,832	$	26,863	$	12,645	$	977		$	273,317
Total assets	$	5,801,680	$	444,717	$	367,562	$	230,098		$	6,844,057
May 31, 2016
Revenue	$	3,759,524	$	461,783	$	574,465	$	—		$	4,795,772
Gross margin	$	1,666,691	$	197,010	$	237,639	$	—		$	2,101,340
Selling and administrative expenses	994,590		147,503		190,306		—			1,332,399
Interest expense, net	—		—		—		63,626			63,626
Income before income taxes	$	672,101	$	49,507	$	47,333	$	(63,626	)	$	705,315
Depreciation and amortization	$	130,421	$	16,021	$	16,879	$	1,958		$	165,279
Capital expenditures	$	237,871	$	22,364	$	14,840	$	310		$	275,385
Total assets	$	3,104,822	$	421,697	$	322,474	$	249,822		$	4,098,815

⁽¹⁾ Corporate assets include cash and marketable securities in all periods presented. Corporate assets as of May 31, 2017 and 2016 also include the assets of Discontinued Services. Corporate depreciation and amortization includes depreciation and amortization of Discontinued Services.