Quarterly Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 27, 2016	Nov. 28, 2015	Aug. 29, 2015	May. 30, 2015	Feb. 28, 2015	Nov. 29, 2014	Aug. 30, 2014	May. 31, 2014	Feb. 27, 2016	Feb. 28, 2015	Mar. 01, 2014
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 262,149	$ 238,324	$ 240,754	$ 239,962	$ 246,698	$ 244,410	$ 231,945	$ 210,883	$ 981,189	$ 933,936	$ 771,445
Gross profit	68,857	62,426	56,699	55,588	61,132	56,653	49,321	41,438	243,570	208,544	165,252
Net earnings	$ 19,935	$ 18,521	$ 14,760	$ 12,126	$ 13,887	$ 13,736	$ 16,791	$ 6,102	$ 65,342	$ 50,516	$ 27,986
Earnings per share - basic
Earnings per share - basic	$ 0.69	$ 0.64	$ 0.51	$ 0.42	$ 0.49	$ 0.47	$ 0.59	$ 0.21	$ 2.25	$ 1.76	$ 0.98
Earnings per share - diluted
Earnings per share - diluted	$ 0.69	$ 0.63	$ 0.50	$ 0.41	$ 0.47	$ 0.47	$ 0.57	$ 0.21	$ 2.22	$ 1.72	$ 0.95