Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012
Numerator For Earnings Per Share Calculation [Abstract]
Net income	$ 15,329	$ 11,255	$ 42,550	$ 34,440
Preferred stock dividends	(83)	(152)	(250)	(304)
Income available to common shareholders	$ 15,246	$ 11,103	$ 42,300	$ 34,136
Denominator for earnings per common share calculation:
Weighted average common shares, basic	31,417	31,116	31,369	31,020
Effect of dilutive securities:
Preferred stock	760	760	760	760
Stock options	456	364	438	507
Weighted average number of common shares, diluted	32,633	32,240	32,567	32,287
Basic Earnings per common share:	$ 0.49	$ 0.36	$ 1.35	$ 1.10
Diluted Earnings per common share:	$ 0.47	$ 0.35	$ 1.31	$ 1.07
Antidilutive securities excluded from computation of earnings per share	86,000	98,000	1,034,000	967,000