Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Dec. 02, 2017	Nov. 26, 2016
Operating Activities
Net earnings	$ 57,159	$ 62,671
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	39,774	24,270
Stock-based compensation	4,645	4,403
Deferred income taxes	(3,339)	(3,335)
Gain on disposal of assets	78	287
Proceeds from New Markets Tax Credit transaction, net of deferred costs	0	5,109
Other, net	(1,286)	(1,281)
Changes in operating assets and liabilities:
Receivables	(16,131)	(15,235)
Inventories	(1,348)	(9,555)
Accounts payable and accrued expenses	(27,449)	1,897
Billings in excess of costs and earnings on uncompleted contracts	9,869	4,896
Refundable and accrued income taxes	7,108	(1,073)
Other, net	(2,685)	335
Net cash provided by (used in) operating activities	66,239	72,815
Investing Activities
Capital expenditures	(38,946)	(44,548)
Proceeds from sales of property, plant and equipment	253	1,716
Acquisition of business, net of cash acquired	184,826	0
Change in restricted cash	(7,834)	14,884
Purchases of marketable securities	(10,154)	(3,021)
Sales/maturities of marketable securities	9,288	3,703
Other, net	941	(2,168)
Net cash provided by (used in) investing activities	(215,610)	(59,202)
Financing Activities
Borrowings on line of credit	314,700	0
Payments on line of credit	150,700	0
Shares withheld for taxes, net of stock issued to employees	(1,561)	(910)
Repurchase and retirement of common stock	10,833	10,817
Dividends paid	(11,971)	(10,687)
Proceeds from (Payments for) Other Financing Activities	2,039	(408)
Net cash provided by (used in) financing activities	141,674	(22,822)
Decrease in cash and cash equivalents	(7,697)	(9,209)
Effect of exchange rates on cash	1,079	338
Cash and cash equivalents at beginning of year	19,463	60,470
Cash and cash equivalents at end of period	12,845	51,599
Noncash Activity
Capital expenditures in accounts payable	1,859	6,683
Deferred payments on acquisition of business	$ 7,500	$ 0