Valuation and Qualifying Accounts (Details Textual) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended	12 Months Ended
Dec. 28, 2007	Sep. 30, 2012	Mar. 31, 2012	Apr. 02, 2011	Jan. 01, 2011	Mar. 31, 2012	Apr. 02, 2011	Apr. 03, 2010
Valuation and Qualifying Accounts (Textual) [Abstract]
Restructuring charges		$ 3,400		$ 6,070	$ 4,276	$ 3,369	$ 10,346	$ 30,064
Litigation	15,400		15,400			15,400
Impairment loss on investments				$ 5,900		$ 0	$ 5,904	$ 3,805

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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+ Details

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

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+ Details

- Definition

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

+ References+ Details