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Earnings Per Common Share (Reconciliation Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Numerator for earnings per common share calculation:
Net income	$ 20,314	$ 21,761	$ 42,920	$ 42,405
Less: Preferred stock dividends	(112)	(102)	(224)	(204)
Income available to common shareholders	$ 20,202	$ 21,659	$ 42,696	$ 42,201
Denominator for earnings per common share calculation:
Weighted average common shares, basic	33,244	32,911	33,214	32,882
Effect of dilutive securities:
Preferred stock	510	510	510	510
Weighted average common shares, diluted	33,979	33,640	33,971	33,546
Basic earnings per common share:	$ 0.61	$ 0.66	$ 1.29	$ 1.28
Diluted earnings per common share:	$ 0.60	$ 0.65	$ 1.26	$ 1.26
Stock Options [Member]
Effect of dilutive securities:
Share based payment arrangements (in shares)	196	191	213	126
Restricted Stock [Member]
Effect of dilutive securities:
Share based payment arrangements (in shares)	29	28	34	28

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