Property and Equipment

12 Months Ended

May 31, 2019

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

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

(In thousands)	2019		2018
Land	$	189,828	$	177,281
Buildings and improvements	684,699		644,322
Equipment	2,207,481		2,070,009
Leasehold improvements	43,227		34,891
Construction in progress	67,129		119,937
	3,192,364		3,046,440
Less: accumulated depreciation	1,761,679		1,663,710
Property and equipment, net	$	1,430,685	$	1,382,730

Interest expense is net of capitalized interest of $0.7 million, $1.0 million and $2.1 million for the fiscal years ended May 31, 2019, 2018 and 2017, respectively. Cintas capitalizes certain expenditures for software that are purchased or internally developed for use in business. Included in equipment at May 31, 2019 and 2018 were $259.5 million and $253.8 million, respectively, of internal use software. Depreciation of internal use software begins when the software is ready for service and continues on the straight-line method over the estimated useful life, generally 10 years. Accumulated depreciation related to internal use software was $110.2 million and $88.8 million at May 31, 2019 and 2018, respectively.