CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2012
Cash flows from operating activities:
Net income	$ 269,952	$ 238,713	$ 217,566
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization of property and equipment	60,124	55,023	48,403
Amortization of acquired intangibles	61,945	56,765	50,696
Share-based compensation expense	29,793	18,427	16,391
Provision for operating losses and bad debts	20,574	21,659	22,417
Deferred income taxes	(1,799)	33,112	(19,498)
Other, net	(1,484)	(4,878)	(2,775)
Changes in operating assets and liabilities, net of the effects of acquisitions:
Accounts receivable	(18,539)	(5,458)	(16,422)
Claims receivable	(11,569)	(11,858)	(13,519)
Settlement processing assets and obligations, net	(241,431)	(104,007)	(568,335)
Inventory	4,793	(1,187)	(2,394)
Prepaid expenses and other assets	18,995	(22,978)	3,511
Accounts payable and other accrued liabilities	9,224	(39,374)	85,875
Income taxes payable	(6,480)	6,587	4,609
Net cash provided by (used in) operating activities	194,098	240,546	(173,475)
Cash flows from investing activities:
Business, intangible and other asset acquisitions, net of cash acquired	(426,524)	(434,016)	(44,274)
Capital expenditures	(81,411)	(98,590)	(109,876)
Principal collections on financing receivables	2,658	2,812	2,565
Proceeds from Divestiture of Interest in Subsidiaries and Affiliates	3,607	1,227	1,152
Net cash used in investing activities	(501,670)	(528,567)	(150,433)
Cash flows from financing activities:
Net borrowings (payments) on short-term lines of credit	252,667	(27,930)	(55,354)
Proceeds from issuance of long-term debt	2,690,000	1,135,327	146,374
Principal payments under long-term debt	(2,260,597)	(482,349)	(184,235)
Acquisition of redeemable noncontrolling interest	0	(242,000)	0
Payment of debt issuance costs	(5,961)	(3,987)	0
Repurchase of common stock	(447,307)	(175,297)	(99,604)
Proceeds from stock issued under share-based compensation plans	31,727	10,543	11,446
Common stock repurchased - share-based compensation plans	(5,681)	(10,244)	(4,861)
Tax benefit from share-based compensation plans	6,475	1,863	1,441
Distributions to noncontrolling interests	(36,670)	(16,206)	(27,082)
Dividends paid	(5,757)	(6,198)	(6,311)
Net cash provided by (used in) financing activities	218,896	183,522	(218,186)
Effect of exchange rate changes on cash	(9,922)	3,694	(30,916)
Decrease in cash and cash equivalents	(98,598)	(100,805)	(573,010)
Cash and cash equivalents, beginning of the period	680,470	781,275	1,354,285
Cash and cash equivalents, end of the period	$ 581,872	$ 680,470	$ 781,275