Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Dec. 01, 2018	Dec. 02, 2017
Operating Activities
Net earnings	$ 57,778	$ 57,159
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	38,378	39,774
Stock-based compensation	4,724	4,645
Deferred income taxes	10,600	(3,339)
Gain on disposal of assets	2,499	78
Proceeds from New Markets Tax Credit transaction, net of deferred costs	8,850	0
Other, net	(799)	(1,286)
Changes in operating assets and liabilities:
Receivables	9,291	(16,131)
Inventories	4,398	(1,915)
Costs and earnings on contracts in excess of billings	(54,569)	567
Accounts payable and accrued expenses	(20,072)	(27,449)
Billings in excess of costs and earnings on uncompleted contracts	14,558	9,869
Refundable and accrued income taxes	1,831	7,108
Other, net	(1,825)	(2,685)
Net cash provided by (used in) operating activities	70,644	66,239
Investing Activities
Capital expenditures	(33,867)	(38,946)
Proceeds from sales of property, plant and equipment	12,332	253
Acquisition of business, net of cash acquired	0	184,826
Purchases of marketable securities	(9,006)	(10,154)
Sales/maturities of marketable securities	5,813	9,288
Other	(2,209)	941
Net cash provided by (used in) investing activities	(26,937)	(223,444)
Financing Activities
Borrowings on line of credit	294,500	314,700
Payments on line of credit	278,000	150,700
Shares withheld for taxes, net of stock issued to employees	(1,591)	(1,561)
Repurchase and retirement of common stock	23,313	10,833
Dividends paid	(13,180)	(11,971)
Proceeds from (Payments for) Other Financing Activities	413	2,039
Net cash provided by (used in) financing activities	(21,171)	141,674
Decrease in cash and cash equivalents	22,536	(15,531)
Effect of exchange rates on cash	(498)	1,079
Cash, cash equivalents and restricted cash at beginning of year	19,359	27,297
Cash, cash equivalents and restricted cash at end of period	41,397	12,845
Noncash Activity
Capital expenditures in accounts payable	$ 5,771	$ 1,859