Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Feb. 27, 2016	Feb. 28, 2015	Mar. 01, 2014
Operating Activities
Net earnings	$ 65,342	$ 50,516	$ 27,986
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	31,248	29,423	26,550
Share-based compensation	4,923	4,793	4,661
Deferred income taxes	(6,139)	4,274	(5,280)
Excess tax benefits from share-based compensation	(4,992)	(3,236)	(2,725)
Gain on disposal of assets	(198)	(933)	(1,629)
Proceeds from new markets tax credit transaction, net of deferred costs	0	0	7,471
Other, net	1,017	229	51
Changes in operating assets and liabilities:
Receivables	(2,918)	(18,588)	(19,229)
Inventories	(2,798)	(8,660)	(6,130)
Accounts payable and accrued expenses	17,265	12,871	18,282
Billings in excess of costs and earnings on uncompleted contracts	9,657	(324)	1,202
Refundable and accrued income taxes	12,589	(1,091)	3,449
Other, net	(1,045)	(711)	(1,738)
Net cash provided by operating activities	123,951	68,563	52,921
Investing Activities
Capital expenditures	(42,037)	(27,220)	(41,852)
Purchases of marketable securities	(35,814)	(6,142)	(14,562)
Sales/maturities of marketable securities	4,047	6,946	41,020
Acquisition of businesses and intangibles, net of cash acquired	0	0	(53,301)
Purchases of restricted investments	0	0	(36,200)
Sales/maturities of restricted investments	0	2,532	60,115
Other, net	(4,052)	(591)	806
Net cash used in investing activities	(77,856)	(24,475)	(43,974)
Financing Activities
Payments on debt, net	(56)	(139)	(10,247)
Shares withheld for taxes, net of stock issued to employees	(3,254)	(3,905)	710
Excess tax benefits from share-based compensation	4,992	3,236	2,725
Repurchase and retirement of common stock	(24,911)	(6,894)	0
Dividends paid	(13,184)	(12,071)	(10,764)
Net cash used in financing activities	(36,413)	(19,773)	(17,576)
Increase (decrease) in cash and cash equivalents	9,682	24,315	(8,629)
Effect of exchange rates on cash	(1,397)	(595)	(673)
Cash and cash equivalents at beginning of year	52,185	28,465	37,767
Cash and cash equivalents at end of period	60,470	52,185	28,465
Noncash Activity
Capital expenditures in accounts payable	$ 2,737	$ 2,656	$ 761