Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2022	Aug. 31, 2021
Cash flows from operating activities:
Net income	$ 351,689	$ 331,179
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	63,057	60,955
Amortization of intangible assets and capitalized contract costs	36,989	36,994
Stock-based compensation	26,282	36,496
Gain on sale of operating assets	0	(12,178)
Deferred income taxes	14,829	22,887
Change in current assets and liabilities, net of acquisitions of businesses:
Accounts receivable, net	(79,397)	(27,742)
Inventories, net	(2,476)	14,986
Uniforms and other rental items in service	(39,327)	(39,274)
Prepaid expenses and other current assets and capitalized contract costs	(63,641)	(36,724)
Accounts payable	41,681	(26,272)
Accrued compensation and related liabilities	(59,957)	(85,834)
Accrued liabilities and other	(49,105)	(24,342)
Income taxes, current	57,532	11,010
Net cash provided by operating activities	298,156	262,141
Cash flows from investing activities:
Capital expenditures	(70,016)	(48,748)
Purchases of investments	(5,930)	(8,738)
Proceeds from sale of operating assets, net of cash disposed	0	15,070
Acquisitions of businesses, net of cash acquired	(7,060)	(35,725)
Other, net	(3,589)	(6,180)
Net cash used in investing activities	(86,595)	(84,321)
Cash flows from financing activities:
Issuance of commercial paper, net	196,000	326,000
Repayment of debt	0	(250,000)
Proceeds from exercise of stock-based compensation awards	1,047	72,896
Dividends paid	(97,655)	(79,135)
Repurchase of common stock	(320,334)	(659,235)
Other, net	(5,257)	(610)
Net cash used in financing activities	(226,199)	(590,084)
Effect of exchange rate changes on cash and cash equivalents	(1,275)	(1,627)
Net decrease in cash and cash equivalents	(15,913)	(413,891)
Cash and cash equivalents at beginning of period	90,471	493,640
Cash and cash equivalents at end of period	$ 74,558	$ 79,749