Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 23, 2017	Sep. 24, 2016	Sep. 23, 2017	Sep. 24, 2016
Consolidated Statements Of Comprehensive Income [Abstract]
Sales	$ 278,017	$ 245,927	$ 556,507	$ 481,217
Cost of sales, including distribution and occupancy costs	170,076	145,930	335,682	283,152
Gross profit	107,941	99,997	220,825	198,065
Operating, selling, general and administrative expenses	74,120	68,072	153,256	134,846
Operating income	33,821	31,925	67,569	63,219
Interest expense, net of interest income	6,117	4,488	11,859	8,972
Other income, net	(226)	(126)	(238)	(280)
Income before provision for income taxes	27,930	27,563	55,948	54,527
Provision for income taxes	10,663	10,019	21,096	20,228
Net income	17,267	17,544	34,852	34,299
Other comprehensive loss, net of tax:
Changes in pension, net of tax benefit	(50)	(47)	(100)	(128)
Comprehensive income	$ 17,217	$ 17,497	$ 34,752	$ 34,171
Earnings per common share:
Basic	$ 0.52	$ 0.54	$ 1.06	$ 1.05
Diluted	$ 0.52	$ 0.53	$ 1.05	$ 1.03