Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	May 31, 2012		May 31, 2011		May 31, 2010
Revenues	$ 2,148.8		$ 1,887.9		$ 1,894.2
Operating costs and expenses:
Cost of goods sold (exclusive of depreciation)	989.2		873.7		848.6
Selling, general and administrative expenses	870.3		826.4		795.1
Bad debt expense	12.3		13.6		9.5
Depreciation and amortization	68.8	[1]	60.1	[1]	59.5	[1]
Severance	14.9		6.7		9.2
Loss on leases and asset impairments	7.0		3.4		40.1
Total operating costs and expenses	1,962.5		1,783.9		1,762.0
Operating income	186.3		104.0		132.2
Other income (expense)	(0.1)		(0.4)		0.9
Interest income	1.0		1.5		1.6
Interest expense	(16.5)		(17.1)		(17.8)
Loss on investments			(3.6)		(1.5)
Earnings (loss) from continuing operations before income taxes	170.7		84.4		115.4
Provision for income taxes	62.0		38.9		54.4
Earnings (loss) from continuing operations	108.7		45.5		61.0
Earnings (loss) from discontinued operations, net of tax	(6.3)		(6.1)		(4.9)
Net income (loss)	$ 102.4		$ 39.4		$ 56.1
Basic:
Earnings (loss) from continuing operations (in Dollars per share)	$ 3.47		$ 1.36		$ 1.67
Earnings (loss) from discontinued operations (in Dollars per share)	$ (0.20)		$ (0.18)		$ (0.13)
Net income (loss) (in Dollars per share)	$ 3.27		$ 1.18		$ 1.54
Diluted:
Earnings (loss) from continuing operations (in Dollars per share)	$ 3.41		$ 1.34		$ 1.65
Earnings (loss) from discontinued operations (in Dollars per share)	$ (0.20)		$ (0.18)		$ (0.13)
Net income (loss) (in Dollars per share)	$ 3.21		$ 1.16		$ 1.52
Dividends declared per common share (in Dollars per share)	$ 0.45		$ 0.35		$ 0.30

[1] Includes depreciation of property, plant and equipment and amortization of intangible assets.