Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

+ References+ Details

Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the next fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

+ References+ Details

- Definition

This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

+ References

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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

+ Details

- Definition

The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

+ References+ Details

Other Assets - Additional Information (Details) (USD $)	3 Months Ended		6 Months Ended
Other Assets - Additional Information (Details) (USD $)	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Mar. 30, 2013
Schedule of Available-for-sale Securities
Cost Method Investments	$ 10,378,000		$ 10,378,000		$ 8,966,000
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	56,200,000		56,200,000
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	10,400,000		10,400,000
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	3,588,000	0	3,588,000	0
Omni Guide, Inc.
Schedule of Available-for-sale Securities
Percentage Of Ownership Interests	15.00%		15.00%
Cost Method Investment Preferred Stock Class F [Member] \| Omni Guide, Inc.
Schedule of Available-for-sale Securities
Cost Method Investments	5,000,000		5,000,000
Cost Method Investment Preferred Stock Class D [Member] \| Omni Guide, Inc.
Schedule of Available-for-sale Securities
Cost Method Investments	6,000,000		6,000,000
Cost Method Investment Preferred Stock Class E [Member] \| Omni Guide, Inc.
Schedule of Available-for-sale Securities
Cost Method Investments	$ 3,000,000		$ 3,000,000