Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 24, 2011	Dec. 25, 2010	Dec. 24, 2011	Dec. 25, 2010
Numerator For Earnings Per Share Calculation [Abstract]
Net income	$ 13,552	$ 11,058	$ 44,110	$ 37,593
Preferred stock dividends	(69)	(61)	(198)	(152)
Income available to common shareholders	$ 13,483	$ 10,997	$ 43,912	$ 37,441
Denominator for earnings per common share calculation:
Weighted average common shares, basic	30,823,000	30,275,000	30,659,000	30,131,000
Effect of dilutive securities:
Preferred stock	760,000	760,000	760,000	760,000
Stock options	513,000	880,000	824,000	856,000
Weighted average number of common shares, diluted	32,096,000	31,915,000	32,243,000	31,747,000
Basic Earnings per common share:	$ 0.44	$ 0.37	$ 1.43	$ 1.25
Diluted Earnings per common share:	$ 0.42	$ 0.35	$ 1.37	$ 1.18
Antidilutive securities excluded from computation of earnings per share	588,000	49,000	687,000	198,000