Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2023	Aug. 31, 2022
Operating activities:
Net earnings	$ 99,703	$ 65,244
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	28,325	28,001
Impairment of long-lived assets	1,401	312
Benefit from deferred income taxes	(5,453)	(11,056)
Loss on extinguishment of debt	1,534
Bad debt expense	(799)	342
Equity in net income of unconsolidated affiliates, net of distributions	10,225	42,845
Net loss (gain) on sale of assets	105	(769)
Stock-based compensation	4,516	4,236
Changes in assets and liabilities, net of impact of acquisitions:
Receivables	(8,843)	37,419
Inventories	(64,327)	41,167
Accounts payable	278	(101,581)
Accrued compensation and employee benefits	(12,014)	(33,868)
Income taxes payable	28,462	7,329
Other operating items, net	(23,417)	1,417
Net cash provided by operating activities	59,696	81,038
Investing activities:
Investment in property, plant and equipment	(29,298)	(21,477)
Investment in note receivable	(15,000)
Investment in non-marketable equity securities	(40)	(110)
Proceeds from sale of assets, net of selling costs	51	11,755
Acquisitions, net of cash acquired		(56,088)
Net proceeds from sale of investment in ArtiFlex		36,095
Net cash used by investing activities	(44,287)	(29,825)
Financing activities:
Net repayments of short-term borrowings	(2,813)	(32,443)
Principal payments on long-term obligations	(243,757)	(137)
Proceeds from issuance of common shares, net of tax withholdings	(5,130)	(3,466)
Payments to noncontrolling interests	(1,921)
Dividends paid	(15,725)	(13,884)
Net cash used by financing activities	(269,346)	(49,930)
Increase (decrease) in cash and cash equivalents	(253,937)	1,283
Cash and cash equivalents at beginning of period	454,946	34,485
Cash and cash equivalents at end of period	$ 201,009	$ 35,768