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Investments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 01, 2012	Dec. 03, 2011	Dec. 01, 2012	Dec. 03, 2011	Jun. 02, 2012
Investment [Line Items]
Investment in time deposits and certificate of deposits	$ 93.4		$ 93.4
Investment in time deposits and certificate of deposits, less than twelve months	86.4		86.4
Investment in time deposits and certificate of deposits, greater than twelve months	7.0		7.0
Investments, which are included in non-current assets	0.4		0.4		0.4
Proceeds from the sale of securities	$ 0.1		$ 0.1	$ 0.1
Proceeds from the sale of securities description		less than $0.1 million
Gross realized gains and losses on sale, description	Less than $0.1 million	Less than $0.1 million	Less than $0.1 million	Less than $0.1 million
Net unrealized holding gains, description	Less than $0.1 million	Less than $0.1 million	Less than $0.1 million	Less than $0.1 million

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Investment in time deposits and certificate of deposits.

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Amount of equity securities categorized neither as held-to-maturity nor as trading.

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