Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 02, 2019	Mar. 03, 2018	Mar. 04, 2017
Operating Activities
Net earnings	$ 45,694	$ 79,488	$ 85,790
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	49,798	54,843	35,607
Share-based compensation	6,286	6,205	5,986
Deferred income taxes	(5,506)	3,195	(1,065)
(Loss) gain on disposal of assets	(2,475)	1,037	(371)
Impairment on intangible assets	3,141	0	0
Proceeds from new markets tax credit transaction, net of deferred costs	8,850	0	5,109
Other, net	(2,179)	(1,431)	(2,331)
Changes in operating assets and liabilities:
Receivables	18,164	18,172	3,460
Inventories	5,114	10,387	(10,318)
Costs and earnings on contracts in excess of billings	(48,712)	1,134	3,931
Accounts payable and accrued expenses	7,600	(25,627)	17,449
Billings in excess of costs and earnings on uncompleted contracts	9,026	(16,541)	(9,991)
Refundable and accrued income taxes	3,680	315	(9,647)
Other, net	(2,058)	(3,714)	392
Net cash provided by operating activities	96,423	127,463	124,001
Investing Activities
Capital expenditures	(60,717)	(53,196)	(68,061)
Purchases of marketable securities	(9,213)	(10,244)	(3,705)
Sales/maturities of marketable securities	6,110	10,476	36,433
Proceeds from sales of property, plant and equipment	12,333	1,394	1,729
Acquisition of business and intangibles	0	(182,849)	(137,932)
Other, net	(2,209)	851	(4,388)
Net cash used in investing activities	(53,696)	(233,568)	(175,924)
Financing Activities
Borrowings on line of credit	363,000	385,700	121,000
Payments on line of credit	(333,000)	(235,740)	(76,012)
Shares withheld for taxes, net of stock issued to employees	(1,531)	(1,712)	(446)
Repurchase and retirement of common stock	(43,326)	(33,676)	(10,817)
Dividends paid	(17,864)	(16,393)	(14,667)
Other, net	395	155	(396)
Net cash (used in) provided by financing activities	(32,326)	98,334	18,662
Increase (decrease) in cash and cash equivalents	10,401	(7,771)	(33,261)
Effect of exchange rates on cash	(519)	(167)	88
Cash, cash equivalents and restricted cash at beginning of year	19,359	27,297	60,470
Cash, cash equivalents and restricted cash at end of period	29,241	19,359	27,297
Noncash Activity
Capital expenditures in accounts payable	1,703	1,784	3,254
Deferred payments on acquisition of business	$ 0	$ 7,500	$ 0