Consolidated Statements of Cash Flows - USD ($) $ in Thousands		9 Months Ended
		Feb. 28, 2019	Feb. 28, 2018
Cash Flows From Operating Activities:
Net Income		$ 133,855	$ 253,349
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Depreciation		71,869	61,078
Amortization		35,677	35,123
Restructuring charges, net of payments		9,296
Fair value adjustments to contingent earnout obligations		1,558
Deferred income taxes		(8,747)	(42,885)
Stock-based compensation expense		20,892	17,698
Other non-cash interest expense		1,552	4,275
Realized/unrealized losses (gains) on marketable securities		5,906	(6,833)
Loss on extinguishment of debt	[1]	3,051
Other		179	(71)
Changes in assets and liabilities, net of effect from purchases and sales of businesses:
Decrease in receivables		152,622	138,942
(Increase) in inventory		(80,686)	(121,095)
Decrease in prepaid expenses and other current and long-term assets		11,593	14,307
(Decrease) in accounts payable		(166,951)	(112,888)
(Decrease) in accrued compensation and benefits		(32,503)	(45,873)
Increase (decrease) in accrued losses		1,578	(11,001)
(Decrease) in other accrued liabilities		(20,952)	(42,895)
Other		5,716	(483)
Cash Provided By Operating Activities		145,505	140,748
Cash Flows From Investing Activities:
Capital expenditures		(84,491)	(72,769)
Acquisition of businesses, net of cash acquired		(167,712)	(59,991)
Purchase of marketable securities		(16,644)	(139,641)
Proceeds from sales of marketable securities		67,550	97,624
Other		1,294	6,766
Cash (Used For) Investing Activities		(200,003)	(168,011)
Cash Flows From Financing Activities:
Additions to long-term and short-term debt		596,222	340,106
Reductions of long-term and short-term debt		(253,343)	(264,051)
Cash dividends		(135,535)	(125,672)
Shares repurchased and shares returned for taxes		(191,056)	(15,065)
Payments of acquisition-related contingent consideration		(3,598)	(3,825)
Other		(640)	(1,911)
Cash Provided By (Used For) Financing Activities		12,050	(70,418)
Effect of Exchange Rate Changes on Cash and Cash Equivalents		(6,805)	11,570
Net Change in Cash and Cash Equivalents		(49,253)	(86,111)
Cash and Cash Equivalents at Beginning of Period		244,422	350,497
Cash and Cash Equivalents at End of Period		195,169	264,386
Cash paid during the period for:
Interest		70,548	69,239
Income Taxes, net of refunds		33,859	$ 79,441
Supplemental Disclosures of Non-Cash Investing and Financing Activities:
Conversion of Debt to Equity		$ 38,239

[1] In connection with the redemption of all of our outstanding 2.25% convertible senior notes in November 2018, we recognized a loss of $3.1 million, due to the fair value measurement of the instrument on the date of conversion.