Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 28, 2014	Jun. 29, 2013
Numerator For Earnings Per Share Calculation [Abstract]
Net income	$ 16,932	$ 13,572
Preferred stock dividends	(99)	(84)
Income available to common shareholders	$ 16,833	$ 13,488
Denominator for earnings per common share calculation:
Weighted average common shares, basic	31,516,000	31,302,000
Effect of dilutive securities:
Preferred stock	760,000	760,000
Stock options	501,000	424,000
Weighted average number of common shares, diluted	32,777,000	32,486,000
Basic Earnings per common share:	$ 0.53	$ 0.43
Diluted Earnings per common share:	$ 0.52	$ 0.42
Antidilutive securities excluded from computation of earnings per share	57,000	176,000