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Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
Income Taxes (Details) (USD $)	Dec. 28, 2012	Dec. 30, 2011	Dec. 28, 2012	Dec. 30, 2011
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 5,126,000	$ 7,943,000	$ 15,420,000	$ 23,382,000
Decrease in provision for income taxes	$ (2,800,000)		$ (8,000,000)
Effective tax rate	32.70%	33.40%	32.40%	35.60%

- 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.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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