UNAUDITED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Aug. 31, 2014	Aug. 31, 2013
Income Statement [Abstract]
Revenues	$ 704,895	$ 629,685
Operating expenses:
Cost of service	259,839	230,745
Sales, general and administrative	320,658	291,556
Total costs and expenses	580,497	522,301
Operating income	124,398	107,384
Other income (expense):
Interest and other income	1,192	3,338
Interest and other expense	(11,010)	(7,879)
Total nonoperating income (expense)	(9,818)	(4,541)
Income before income taxes	114,580	102,843
Provision for income taxes	(30,146)	(31,135)
Net income	84,434	71,708
Less: Net income attributable to noncontrolling interests, net of income tax	(9,068)	(7,065)
Net income attributable to Global Payments	$ 75,366	$ 64,643
Earnings per share attributable to Global Payments:
Basic (in dollars per share)	$ 1.11	$ 0.88
Diluted (in dollars per share)	$ 1.10	$ 0.87