INCOME TAXES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Aug. 30, 2011	Aug. 31, 2010	May 31, 2011
INCOME TAXES [Abstract]
Unrecognized tax benefits	$ 5.4		$ 5.2
Unrecognized tax benefits that impact effective tax rate	3.1		3.4
Tax position included in unrecognized tax benefits liabilty	1.1
Accrued interest and penalties	1.7		1.6
Increased accrued interest and penalties	0.2
Increased accrued interest and penalties which affected the effective tax rate	$ 0.1
Effective tax rate	15.40%	22.90%

The increase and or decrease of accrued interest and penalties related to unrecognized tax benefits.

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The portion of the change in accrued penalties and interest related to unrecognized tax benefits that impacted the effective tax rate during the period.

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- Definition

Tax positions included in unrecognized tax benefits, likely to change from outcome of examinations and negotiations with tax authority within the next twelve months.

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- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.4-08.(h)(2))

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 47

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

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-Subparagraph 2

-Article 4

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-Publisher FASB

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- Definition

The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 48

-Paragraph 21

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

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-Publisher FASB

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- Definition

This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

+ References

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-Publisher FASB

-Name FASB Interpretation (FIN)

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-Paragraph 21

-Subparagraph c

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-Name FASB Interpretation (FIN)

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-Paragraph 15, 16

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

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-Publisher FASB

-Name FASB Interpretation (FIN)

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-Paragraph 21

-Subparagraph b

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