Quarterly Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	Jun. 01, 2019	Mar. 02, 2019	Dec. 01, 2018	Sep. 01, 2018	Jun. 02, 2018	Feb. 29, 2020	Mar. 02, 2019	Mar. 03, 2018
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 337,100	$ 337,916	$ 357,058	$ 355,365	$ 346,255	$ 357,718	$ 362,133	$ 336,531	$ 1,387,439	$ 1,402,637	$ 1,326,173
Gross profit	77,475	74,310	86,207	80,967	44,279	84,090	84,466	80,730	318,959	293,565	333,518
Net earnings	$ 11,958	$ 15,234	$ 19,279	$ 15,443	$ (12,083)	$ 21,891	$ 20,513	$ 15,373	$ 61,914	$ 45,694	$ 79,488
Earnings per share - basic
Earnings per share - basic (USD per share)	$ 0.45	$ 0.58	$ 0.73	$ 0.58	$ (0.45)	$ 0.79	$ 0.73	$ 0.55	$ 2.34	$ 1.64	$ 2.79
Earnings per share - diluted
Earnings per share - diluted (USD per share)	$ 0.45	$ 0.57	$ 0.72	$ 0.58	$ (0.45)	$ 0.78	$ 0.72	$ 0.54	$ 2.32	$ 1.63	$ 2.76