Significant Accounting Policies (Tables)

12 Months Ended

May 31, 2021

Accounting Policies [Abstract]

Inventory

Inventory is comprised of the following amounts at May 31:

(In thousands)	2021		2020
Raw materials	$	15,109	$	18,661
Work in process	37,664		29,497
Finished goods	429,024		360,740
	$	481,797	$	408,898

Property and Equipment Estimated Useful Lives

Depreciation is calculated using the straight-line method primarily over the following estimated useful lives of the assets based on industry and Cintas specific experience:

	Years
Buildings	30 to 40
Building improvements	5 to 20
Equipment	3 to 10
Leasehold improvements	2 to 15

Cintas' property and equipment is summarized as follows at May 31:

(In thousands)	2021		2020
Land	$	190,711	$	188,720
Buildings and improvements	698,094		682,768
Equipment	2,409,785		2,347,636
Leasehold improvements	38,320		40,188
Construction in progress	36,749		54,548
	3,373,659		3,313,860
Accumulated depreciation	(2,055,221)		(1,910,795)
Property and equipment, net	$	1,318,438	$	1,403,065

Current Accrued Liabilities

Current accrued liabilities consist of the following at May 31:

(In thousands)	2021		2020
Insurance reserve	$	156,447	$	165,427
Employee benefit related liabilities	129,348		134,846
Dividends	79,135		—
Accrued interest	24,420		24,538
Other	129,560		131,842
	$	518,910	$	456,653