Supplemental Guarantor Information - Balance Sheet (Details) - USD ($) $ in Thousands	May 31, 2019	Jun. 01, 2018	May 31, 2018	May 31, 2017	May 31, 2016
Current assets:
Cash and cash equivalents	$ 96,645		$ 138,724
Accounts receivable, net	910,120	$ 818,009	804,583
Inventories, net	334,589	269,082	280,347
Uniforms and other rental items in service	784,133		702,261
Income taxes, current	7,475		19,634
Prepaid expenses and other current assets	103,318	95,846	32,383
Total current assets	2,236,280	2,043,556	1,977,932
Property and equipment, net	1,430,685		1,382,730
Investments	192,346		175,581
Goodwill	2,842,441		2,846,888	$ 2,782,335
Service contracts, net	494,595		545,768
Other assets, net	240,315	216,818	29,315
Total assets	7,436,662	7,211,341	6,958,214	6,844,057
Current liabilities:
Accounts payable	226,020		215,074
Accrued compensation and related liabilities	155,509		140,654
Accrued liabilities	433,940		420,129
Debt due within one year	312,264		0
Total current liabilities	1,127,733		775,857
Long-term liabilities:
Debt due after one year	2,537,507		2,535,309
Deferred income taxes	438,179	416,516	352,581
Accrued liabilities	330,522		277,941
Total long-term liabilities	3,306,208	3,229,766	3,165,831
Total shareholders' equity	3,002,721	3,205,718	3,016,526	$ 2,302,793	$ 1,842,659
Total liabilities and shareholders' equity	7,436,662	$ 7,211,341	6,958,214
Eliminations
Current assets:
Cash and cash equivalents	0		0
Accounts receivable, net	0		0
Inventories, net	0		0
Uniforms and other rental items in service	(12,248)		(18,589)
Income taxes, current	0		0
Prepaid expenses and other current assets	0		0
Total current assets	(12,248)		(18,589)
Property and equipment, net	0		0
Investments	(6,399,643)		(6,407,479)
Goodwill	(112)		(112)
Service contracts, net	0		0
Other assets, net	(7,613,307)		(6,591,606)
Total assets	(14,025,310)		(13,017,786)
Current liabilities:
Accounts payable	37,432		37,947
Accrued compensation and related liabilities	0		0
Accrued liabilities	0		0
Debt due within one year	0
Total current liabilities	37,432		37,947
Long-term liabilities:
Debt due after one year	0		0
Deferred income taxes	0		0
Accrued liabilities	0		0
Total long-term liabilities	0		0
Total shareholders' equity	(14,062,742)		(13,055,733)
Total liabilities and shareholders' equity	(14,025,310)		(13,017,786)
Cintas Corporation | Reportable Legal Entities
Current assets:
Cash and cash equivalents	0		0
Accounts receivable, net	0		0
Inventories, net	0		0
Uniforms and other rental items in service	0		0
Income taxes, current	0		0
Prepaid expenses and other current assets	0		0
Total current assets	0		0
Property and equipment, net	0		0
Investments	321,083		321,083
Goodwill	0		0
Service contracts, net	0		0
Other assets, net	2,216,391		2,230,196
Total assets	2,537,474		2,551,279
Current liabilities:
Accounts payable	(465,247)		(465,247)
Accrued compensation and related liabilities	0		0
Accrued liabilities	0		0
Debt due within one year	0
Total current liabilities	(465,247)		(465,247)
Long-term liabilities:
Debt due after one year	0		0
Deferred income taxes	0		0
Accrued liabilities	0		0
Total long-term liabilities	0		0
Total shareholders' equity	3,002,721		3,016,526
Total liabilities and shareholders' equity	2,537,474		2,551,279
Corp. 2 | Reportable Legal Entities
Current assets:
Cash and cash equivalents	54,963		44,499
Accounts receivable, net	719,914		620,920
Inventories, net	278,666		225,581
Uniforms and other rental items in service	645,862		585,108
Income taxes, current	(9,728)		5,546
Prepaid expenses and other current assets	81,117		9,453
Total current assets	1,770,794		1,491,107
Property and equipment, net	948,830		900,014
Investments	3,589,234		3,595,668
Goodwill	0		0
Service contracts, net	427,437		468,283
Other assets, net	211,102		593
Total assets	6,947,397		6,455,665
Current liabilities:
Accounts payable	(2,090,954)		(1,724,844)
Accrued compensation and related liabilities	117,404		104,560
Accrued liabilities	84,296		88,949
Debt due within one year	312,264
Total current liabilities	(1,576,990)		(1,531,335)
Long-term liabilities:
Debt due after one year	2,537,507		2,534,919
Deferred income taxes	307,334		215,881
Accrued liabilities	116,469		63,073
Total long-term liabilities	2,961,310		2,813,873
Total shareholders' equity	5,563,077		5,173,127
Total liabilities and shareholders' equity	6,947,397		6,455,665
Investments, excluding intercompany activity	19,800		17,600
Subsidiary Guarantors | Reportable Legal Entities
Current assets:
Cash and cash equivalents	13,151		60,310
Accounts receivable, net	121,803		120,767
Inventories, net	35,081		38,844
Uniforms and other rental items in service	90,458		81,494
Income taxes, current	11,722		9,258
Prepaid expenses and other current assets	20,334		21,688
Total current assets	292,549		332,361
Property and equipment, net	369,006		370,186
Investments	964,802		950,239
Goodwill	2,586,406		2,579,769
Service contracts, net	0		0
Other assets, net	5,424,413		4,381,476
Total assets	9,637,176		8,614,031
Current liabilities:
Accounts payable	2,793,558		2,395,434
Accrued compensation and related liabilities	26,870		24,878
Accrued liabilities	328,267		308,485
Debt due within one year	0
Total current liabilities	3,148,695		2,728,797
Long-term liabilities:
Debt due after one year	0		0
Deferred income taxes	100,162		104,559
Accrued liabilities	197,934		198,181
Total long-term liabilities	298,096		302,740
Total shareholders' equity	6,190,385		5,582,494
Total liabilities and shareholders' equity	9,637,176		8,614,031
Investments, excluding intercompany activity	172,500		158,000
Non- Guarantors | Reportable Legal Entities
Current assets:
Cash and cash equivalents	28,531		33,915
Accounts receivable, net	68,403		62,896
Inventories, net	20,842		15,922
Uniforms and other rental items in service	60,061		54,248
Income taxes, current	5,481		4,830
Prepaid expenses and other current assets	1,867		1,242
Total current assets	185,185		173,053
Property and equipment, net	112,849		112,530
Investments	1,716,870		1,716,070
Goodwill	256,147		267,231
Service contracts, net	67,158		77,485
Other assets, net	1,716		8,656
Total assets	2,339,925		2,355,025
Current liabilities:
Accounts payable	(48,769)		(28,216)
Accrued compensation and related liabilities	11,235		11,216
Accrued liabilities	21,377		22,695
Debt due within one year	0
Total current liabilities	(16,157)		5,695
Long-term liabilities:
Debt due after one year	0		390
Deferred income taxes	30,683		32,141
Accrued liabilities	16,119		16,687
Total long-term liabilities	46,802		49,218
Total shareholders' equity	2,309,280		2,300,112
Total liabilities and shareholders' equity	$ 2,339,925		$ 2,355,025