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SECONDARY COMMON STOCK OFFERING (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Oct. 29, 2011	Oct. 30, 2010
SECONDARY COMMON STOCK OFFERING
Issuance of common stock pursuant to secondary offering, including shares issued to cover the underwriters 8217; overallotment option (in shares)		4,427,500
Price per share of common stock shares issued (in dollars per share)		$ 33.00
Net proceeds	$ 138.3

- Definition

Number of new stock issued during the period.

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- Definition

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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