Earnings Per Common Share (Reconciliation Of Basic And Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Mar. 26, 2016	Mar. 28, 2015	Mar. 29, 2014
Numerator For Earnings Per Share Calculation [Abstract]
Net income		$ 66,805	$ 61,799	$ 54,459
Less: Preferred stock dividends	[1]	(456)	(395)	(334)
Income available to common shareholders		$ 66,349	$ 61,404	$ 54,125
Denominator for earnings per common share calculation:
Weighted average common shares, basic		32,026	31,605	31,394
Effect of dilutive securities:
Preferred stock		760	760	760
Stock options		567	579	488
Weighted average common shares, diluted		33,353	32,944	32,642
Basic Earnings per common share:		$ 2.07	$ 1.94	$ 1.72
Diluted Earnings per common share:		$ 2.00	$ 1.88	$ 1.67

[1] Dividends paid per common share or common share equivalent were $.60, $.52 and $.44, respectively, for the years ended March 26, 2016, March 28, 2015 and March 29, 2014.