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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Sep. 02, 2017	Oct. 11, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	APOGEE ENTERPRISES, INC.
Entity Central Index Key	0000006845
Document Type	10-Q
Document Period End Date	Sep. 02, 2017
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--03-03
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		28,642,749

Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Sep. 02, 2017	Mar. 04, 2017
Current assets
Cash and cash equivalents	$ 29,528	$ 19,463
Short-term available for sale securities	464	548
Restricted cash	0	7,834
Receivables, net of allowance for doubtful accounts	222,583	185,740
Inventories	103,673	73,409
Refundable income taxes	0	1,743
Other current assets	12,498	8,724
Total current assets	368,746	297,461
Property, plant and equipment, net	299,974	246,748
Available for sale securities	10,357	9,041
Deferred tax assets	2,232	4,025
Goodwill	153,483	101,334
Intangible assets	181,124	106,686
Other assets	23,460	19,363
Total assets	1,039,376	784,658
Current liabilities
Accounts payable	63,619	63,182
Accrued payroll and related benefits	30,632	51,244
Accrued self-insurance reserves	8,461	8,575
Other current liabilities	56,378	34,200
Billings in excess of costs and earnings on uncompleted contracts	33,864	28,857
Accrued income taxes	4,854	0
Total current liabilities	197,808	186,058
Long-term debt	257,806	65,400
Unrecognized tax benefits	4,465	3,980
Long-term self-insurance reserves	17,001	8,831
Deferred tax liabilities	1,836	4,025
Other non-current liabilities	59,086	45,787
Commitments and contingent liabilities (Note 13)
Shareholders' equity
Common stock of $0.33-1/3 par value; authorized 50,000,000 shares; issued and outstanding 28,996,209 and 28,958,119, respectively	9,548	9,560
Additional paid-in capital	152,711	150,111
Retained earnings	355,623	341,996
Common stock held in trust	(897)	(875)
Deferred compensation obligations	897	875
Accumulated other comprehensive loss	(16,508)	(31,090)
Total shareholders’ equity	501,374	470,577
Total liabilities and shareholders' equity	$ 1,039,376	$ 784,658

Consolidated Balance Sheets (unaudited) (Parenthetical) - $ / shares	Sep. 02, 2017	Mar. 04, 2017
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.33	$ 0.33
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	28,642,749	28,680,841
Common stock, shares outstanding	28,642,749	28,680,841

Consolidated Results of Operations (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Income Statement [Abstract]
Net sales	$ 343,907	$ 278,455	$ 616,214	$ 526,335
Cost of sales	257,906	205,924	459,919	389,377
Gross profit	86,001	72,531	156,295	136,958
Selling, general and administrative expenses	58,227	39,483	104,415	77,661
Operating income	27,774	33,048	51,880	59,297
Interest income	117	252	284	528
Interest expense	1,650	188	2,095	345
Other income (expense), net	77	254	256	509
Earnings before income taxes	26,318	33,366	50,325	59,989
Income tax expense (benefit)	8,909	10,969	16,813	19,870
Net earnings	$ 17,409	$ 22,397	$ 33,512	$ 40,119
Earnings per share - basic
Net earnings	$ 0.60	$ 0.78	$ 1.16	$ 1.39
Earnings per share - diluted
Net earnings	$ 0.60	$ 0.77	$ 1.16	$ 1.39
Weighted average basic shares outstanding	28,850	28,891	28,850	28,797
Weighted average diluted shares outstanding	28,908	28,960	28,885	28,927

Consolidated Statements of Comprehensive Earnings (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 17,409	$ 22,397	$ 33,512	$ 40,119
Other comprehensive earnings:
Unrealized gain on marketable securities, net of $17, $43, $50 and $35 of tax expense, respectively	30	79	92	65
Foreign currency translation adjustments	15,207	1,632	14,490	4,525
Other comprehensive earnings (loss)	15,237	1,711	14,582	4,590
Total comprehensive earnings	$ 32,646	$ 24,108	$ 48,094	$ 44,709

Consolidated Statements of Comprehensive Earnings (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Statement of Comprehensive Income [Abstract]
Tax expense (benefit) on marketable securities	$ 17	$ 43	$ 50	$ 35

Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Sep. 02, 2017	Aug. 27, 2016
Operating Activities
Net earnings	$ 33,512	$ 40,119
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	25,062	15,955
Stock-based compensation	3,063	2,935
Deferred income taxes	(751)	(1,320)
Gain on disposal of assets	37	183
Proceeds from New Markets Tax Credit transaction, net of deferred costs	0	5,109
Other, net	(1,168)	(1,424)
Changes in operating assets and liabilities:
Receivables	8,683	(14,297)
Inventories	(6,837)	(4,876)
Accounts payable and accrued expenses	(33,982)	(7,511)
Billings in excess of costs and earnings on uncompleted contracts	4,819	10,711
Refundable and accrued income taxes	7,079	(1,310)
Other, net	1,366	(366)
Net cash provided by (used in) operating activities	40,809	43,542
Investing Activities
Capital expenditures	(26,825)	(31,474)
Proceeds from sales of property, plant and equipment	64	1,713
Acquisition of business, net of cash acquired	184,826	0
Change in restricted cash	(7,834)	16,949
Purchases of marketable securities	(5,436)	(2,845)
Sales/maturities of marketable securities	4,271	2,294
Other, net	1,099	(2,044)
Net cash provided by (used in) investing activities	(203,819)	(49,305)
Financing Activities
Borrowings on line of credit	284,200	0
Payments on line of credit	94,000	0
Shares withheld for taxes, net of stock issued to employees	(1,612)	(956)
Repurchase and retirement of common stock	10,833	0
Dividends paid	(7,994)	(7,133)
Proceeds from (Payments for) Other Financing Activities	(1,759)	16
Net cash provided by (used in) financing activities	171,520	(8,105)
Decrease in cash and cash equivalents	8,510	(13,868)
Effect of exchange rates on cash	1,555	374
Cash and cash equivalents at beginning of year	19,463	60,470
Cash and cash equivalents at end of period	29,528	46,976
Noncash Activity
Capital expenditures in accounts payable	1,196	2,520
Deferred payments on acquisition of business	$ 7,500	$ 0

Consolidated Statement of Shareholders Equity (unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Common Stock Held In Trust [Member]	Deferred Compensation Obligation [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance (in shares) at Feb. 27, 2016	28,684
Beginning balance at Feb. 27, 2016		$ 9,561	$ 145,528	$ 282,477	$ (837)	$ 837	$ (31,371)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	$ 40,119			40,119
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	$ 65						65
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent						0	4,525
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	139
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures		46	49		(16)	16
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition			2,935
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net			506
Outstanding shares awards exercised	125
Stock Issued During Period, Value, Stock Options Exercised		42	1,211
Stock Repurchased and Retired During Period, Shares	(52)
Stock Repurchased and Retired During Period, Value		(17)	(273)	(2,014)
Dividends, Common Stock, Cash				(7,133)
Ending balance (in shares) at Aug. 27, 2016	28,896
Ending balance at Aug. 27, 2016		9,632	149,956	313,449	(853)	853	(26,781)
Beginning balance (in shares) at Mar. 04, 2017	28,680
Beginning balance at Mar. 04, 2017	$ 470,577	9,560	150,111	341,996	(875)	875	(31,090)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	33,512			33,512
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	$ 92						92
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent						0	14,490
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	107
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures		36	83		(22)	22
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition			3,063
Outstanding shares awards exercised	100
Stock Issued During Period, Value, Stock Options Exercised		34	801
Share repurchases (in shares)	(200)
Share repurchases		(67)	(1,091)	(9,675)	0	0	0
Stock Repurchased and Retired During Period, Shares	(45)
Stock Repurchased and Retired During Period, Value		(15)	(256)	(2,216)
Dividends, Common Stock, Cash				(7,994)
Ending balance (in shares) at Sep. 02, 2017	28,642
Ending balance at Sep. 02, 2017	$ 501,374	$ 9,548	$ 152,711	$ 355,623	$ (897)	$ 897	$ (16,508)

Basis of Presentation	6 Months Ended
Basis of Presentation	Sep. 02, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements of Apogee Enterprises, Inc. (we, us, our or the Company) have been prepared in accordance with accounting principles generally accepted in the United States. The information included in this Form 10-Q should be read in conjunction with the Company’s Form 10-K for the year ended March 4, 2017. We use the same accounting policies in preparing quarterly and annual financial statements. All adjustments necessary for a fair presentation of quarterly operating results are reflected herein and are of a normal, recurring nature. The results of operations for the six-month period ended September 2, 2017 are not necessarily indicative of the results to be expected for the full year. In connection with preparing the unaudited consolidated financial statements for the six months ended September 2, 2017, we evaluated subsequent events for potential recognition and disclosure through the date of this filing and determined there were no items to recognize or disclose.

New Accounting Standards

6 Months Ended

Sep. 02, 2017

Accounting Changes and Error Corrections [Abstract]

New Accounting Standards

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which outlines a single comprehensive model to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance. Under the new standard, an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance is effective for annual reporting periods beginning after December 15, 2017, our fiscal 2019. We are currently undertaking a process to quantify the impact that this standard will have on our consolidated financial statements and will provide further analysis and discussion as we progress in this quantification process. At this time:


•	We are in the process of evaluating the significance of the guidance to our operations and as we proceed, we will finalize our determination of adoption method.

•

We expect to have business units that will continue to recognize revenue at the point in time when goods are shipped, as that represents when control is transferred to the customer, and business units that will continue to recognize revenue over time, following a cost-to-cost percentage of completion method of revenue recognition. Additionally, we expect that at least one of our business units will change from recognizing revenue at a point in time to recognizing revenue over time, to better reflect transfer of control to the customer in line with the new guidance. We are continuing to assess the appropriate measure of progress toward completion, based on the facts and circumstances specific to the performance obligations and terms of sale of each business.


•	We are also in the process of evaluating how the revenue recognition guidance applies to our recently acquired businesses, Sotawall and EFCO.

In February 2016, the FASB issued ASU 2016-02, Leases, which provides for comprehensive changes to lease accounting. The new standard requires that a lessee recognize a lease obligation liability and a right to use asset for virtually all leases of property, plant and equipment, subsequently amortized over the lease term. The new standard is effective for fiscal years beginning after December 15, 2018, our fiscal year 2020, with a modified retrospective transition. The adoption of this standard will result in reflecting assets and liabilities for the value of our leased property and equipment on our consolidated balance sheet, but we do not currently expect this guidance to have a significant impact on our consolidated results of operations.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows, and in November 2016, it issued 2016-18, Restricted Cash. Both standards provide guidance for presentation of certain topics within the statement of cash flows, including presenting restricted cash within cash and cash equivalents, and are intended to improve consistency in presentation. The new classification guidance is effective for fiscal years beginning after December 15, 2017, our fiscal year 2019, and is to be applied retrospectively for comparability across all periods. We may adopt these standards early, and we are considering the timing of adoption. We do not expect this guidance to have a significant impact on our consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment, which simplifies the accounting for goodwill impairment by requiring impairment charges to be based on the first step in the current two-step impairment test process. The new guidance eliminates the current requirement to calculate a goodwill impairment charge using step 2. The standard is applicable to impairment tests performed in periods beginning after December 15, 2019, our fiscal 2021, with early adoption permitted. We are currently evaluating early adoption of this guidance for our future annual goodwill impairment review process.

- Definition

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6507316

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=66092750

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22583-107794

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
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-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22580-107794

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-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accounting Change
-URI http://asc.fasb.org/extlink&oid=6503790

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22499-107794

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305

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-Name Accounting Standards Codification
-Topic 270
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-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305

+ Details

Share-Based Compensation

6 Months Ended

Sep. 02, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation

Total share-based compensation expense included in the results of operations was $3.1 million for the six-month period ended September 2, 2017 and 2.9 million for the six-month period ended August 27, 2016.

Stock Options and SARs

There were no stock options or SARs issued in months of either period presented. Activity for the current period is summarized as follows:



Stock Options and SARs	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value
Outstanding at March 4, 2017	229,901		$	9.90
Awards exercised	(100,000	)	8.34
Outstanding and exercisable at September 2, 2017	129,901		$	11.10	3.3 Years	$	4,191,562

Cash proceeds from the exercise of stock options were $0.8 million and $1.3 million for the six months ended September 2, 2017 and August 27, 2016, respectively. The aggregate intrinsic value of securities exercised (the amount by which the stock price on the date of exercise exceeded the stock price of the award on the date of grant) was $4.8 million during the six months ended September 2, 2017 and $4.5 million during the prior-year period.

Nonvested Shares and Share Units

Nonvested share activity for the current period is summarized as follows:



Nonvested Shares and Units	Number of Shares and Units		Weighted Average Grant Date Fair Value
Nonvested at March 4, 2017	279,204		$	44.80
Granted	124,416		55.40
Vested	(128,643	)	45.24
Canceled	(6,000	)	55.84
Nonvested at September 2, 2017	268,977		$	49.24

At September 2, 2017, there was $10.1 million of total unrecognized compensation cost related to nonvested share and nonvested share unit awards, which is expected to be recognized over a weighted average period of approximately 23 months. The total fair value of shares vested during the six months ended September 2, 2017 was $6.9 million.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Earnings per Share

6 Months Ended

Sep. 02, 2017

Earnings Per Share [Abstract]

Earnings Per Share

Earnings per Share

The following table presents a reconciliation of the share amounts used in the computation of basic and diluted earnings per share:



	Three Months Ended		Six Months Ended
(In thousands)	September 2, 2017	August 27, 2016	September 2, 2017	August 27, 2016
Basic earnings per share – weighted average common shares outstanding	28,850	28,891	28,850	28,797
Weighted average effect of nonvested share grants and assumed exercise of stock options	58	69	35	130
Diluted earnings per share – weighted average common shares and potential common shares outstanding	28,908	28,960	28,885	28,927

There were no anti-dilutive stock options excluded from the calculation of earnings per share for any of the periods presented, as the average market price exceeded the exercise price of options outstanding.

Inventories

6 Months Ended

Sep. 02, 2017

Inventory Disclosure [Abstract]

Inventories



(In thousands)	September 2, 2017		March 4, 2017
Raw materials	$	35,737	$	22,761
Work-in-process	25,904		16,154
Finished goods	38,296		29,372
Costs and earnings in excess of billings on uncompleted contracts	3,736		5,122
Total inventories	$	103,673	$	73,409

Marketable Securities

6 Months Ended

Sep. 02, 2017

Marketable Securities [Abstract]

Marketable Securities

Marketable securities are classified as available for sale:



(In thousands)	Amortized Cost	Gross Unrealized Gains	Gross Unrealized Losses		Estimated Fair Value
September 2, 2017
Municipal bonds	10,686	185	(50	)	10,821
March 4, 2017
Municipal bonds	9,595	91	(97	)	9,589

We have a wholly-owned insurance subsidiary, Prism Assurance, Ltd. (Prism), which holds municipal bonds. Prism insures a portion of our general liability, workers’ compensation and automobile liability risks using reinsurance agreements to meet statutory requirements. The reinsurance carrier requires Prism to maintain fixed-maturity investments, which are generally high-quality municipal bonds, for the purpose of providing collateral for Prism’s obligations under the reinsurance agreement.

As of September 2, 2017, marketable securities with a fair value of $1.2 million have been in a continuous unrealized loss position for more than 12 months with unrealized losses of $0.1 million. We consider these unrealized losses to be temporary in nature. We intend to hold our investments until the full principal amount can be recovered, and we have the ability to do so based on other sources of liquidity. Gross realized gains and losses were not significant during the first six months of fiscal 2018 or fiscal 2017.

The amortized cost and estimated fair values of municipal bonds at September 2, 2017, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities, as borrowers may have the right to call or prepay obligations with or without penalty.



(In thousands)	Amortized Cost		Estimated Fair Value
Due within one year	$	463	$	464
Due after one year through five years	3,453		3,511
Due after five years through 10 years	5,129		5,253
Due after 10 years through 15 years	1,291		1,242
Due beyond 15 years	350		351
Total	$	10,686	$	10,821

Fair Value Measurements

6 Months Ended

Sep. 02, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

Financial assets and liabilities are classified in the fair value hierarchy based on the lowest level input that is significant to the fair value measurement: Level 1 (unadjusted quoted prices in active markets for identical assets or liabilities); Level 2 (observable market inputs, other than quoted prices included in Level 1); and Level 3 (unobservable inputs that cannot be corroborated by observable market data). We do not have any Level 3 assets or liabilities.



(In thousands)	Quoted Prices in Active Markets (Level 1)		Other Observable Inputs (Level 2)		Total Fair Value
September 2, 2017
Cash equivalents
Money market funds	$	1,888	$	—	$	1,888
Commercial paper	—		2,000		2,000
Total cash equivalents	1,888		2,000		3,888
Short-term securities
Municipal bonds	—		464		464
Long-term securities
Municipal bonds	—		10,357		10,357
Total assets at fair value	$	1,888	$	12,821	$	14,709
March 4, 2017
Cash equivalents
Money market funds	$	4,423	$	—	$	4,423
Commercial paper	—		5,500		5,500
Total cash equivalents	4,423		5,500		9,923
Short-term securities
Municipal bonds	—		548		548
Long-term securities
Municipal bonds	—		9,041		9,041
Total assets at fair value	$	4,423	$	15,089	$	19,512

Cash equivalents

Fair value of money market funds was determined based on quoted prices for identical assets in active markets. Commercial paper was measured at fair value using inputs based on quoted prices for similar securities in active markets.

Short- and long-term securities

Municipal bonds were measured at fair value based on market prices from recent trades of similar securities and are classified as short-term or long-term based on maturity date.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Acquisitions

6 Months Ended

Sep. 02, 2017

Business Combinations [Abstract]

Acquisition

Acquisitions

EFCO

In line with our overall strategic objectives, on June 12, 2017, we acquired 100 percent of the stock of EFCO Corporation, a privately held U.S. manufacturer of architectural aluminum window, curtainwall, storefront and entrance systems for commercial construction projects, for $192 million in cash, funded through our committed revolving credit facility, with $7.5 million of that amount payable in equal installments over the next three years. EFCO's results of operations have been included in our consolidated financial statements and within the Architectural Framing Systems segment since the date of acquisition. Those results include $63.7 million of sales and $1.3 million of operating income for the quarter ended September 2, 2017.

The assets and liabilities of EFCO were recorded in our consolidated balance sheet as of the acquisition date, at their respective fair values. Fair value is estimated based on one or a combination of income, cost and/or market approaches, as determined based on the nature of the asset or liability, and the level of inputs available. With respect to assets and liabilities, the determination of fair value requires management to make subjective judgments as to projections of future operating performance, the appropriate discount rate to apply, long-term growth rates, etc. (i.e. - unobservable inputs classified as Level 3 inputs under the fair value hierarchy described in Note 7), which affect the amounts recorded in the purchase price allocation. The excess of the consideration transferred over the fair value of the identifiable assets, net of liabilities, is recorded as goodwill, which is indicative of the expected continued growth and development of EFCO. The purchase price allocation is based on these estimated fair values of assets acquired and liabilities assumed, as follows:



(In thousands)
Net working capital	$	36,182
Property, plant and equipment	43,961
Goodwill	55,288
Other intangible assets	71,500
Less: Long-term liabilities acquired, net	14,605
Net assets acquired	$	192,326

Other intangible assets reflect the following:



(In thousands)	Estimated fair value		Estimated useful life (in years)
Customer relationships	$	34,800	16
Tradename	32,400		Indefinite
Backlog	4,300		1.5
	$	71,500

These fair values are based on preliminary estimates and are subject to change based on finalization of net working capital and other liability values, intangible asset valuation and other purchase price adjustments.

Sotawall

On December 14, 2016, we acquired substantially all the assets of Sotawall, Inc. (now operating under the name Sotawall Limited or "Sotawall"). Sotawall specializes in the design, engineering, fabrication, assembly and installation of unitized curtainwall systems for industrial, commercial and institutional buildings, primarily serving the Canadian and northeastern U.S. geographic regions. Sotawall's results of operations have been included in our consolidated financial statements and within the Architectural Framing Systems segment since the date of acquisition. Purchase accounting related to the acquisition of Sotawall was finalized during the the first quarter of fiscal 2018.

The following table sets forth certain unaudited pro forma consolidated data for the first three- and six-month periods of fiscal 2018 and 2017 as if the two acquisitions discussed previously were consummated on each of their respective same terms at the beginning of the fiscal year preceding their respective acquisition dates.



	Three Months Ended				Six Months Ended
In thousands, except per share data	September 2, 2017		August 27, 2016		September 2, 2017		August 27, 2016
Net sales	$	351,988	$	372,770	$	696,039	$	714,965
Net earnings	20,312		25,792		37,528		46,201
Earnings per share
Basic	0.70		0.89		1.30		1.60
Diluted	0.70		0.89		1.30		1.60

We have provided this unaudited pro forma information for comparative purposes only. This information does not necessarily reflect what the combined company's results of operations actually would have been had the acquisition occurred at the beginning of fiscal year 2017. The information does not reflect the effect of any synergies or integration costs that may result from the acquisition.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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+ Details

Goodwill and Other Identifiable Intangible Assets

6 Months Ended

Sep. 02, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Identifiable Intangible Assets

The carrying amount of goodwill attributable to each reporting segment was:



(In thousands)	Architectural Framing Systems			Architectural Glass			Architectural Services		Large-Scale Optical		Total
Balance at February 27, 2016	$	36,680		$	25,639		$	1,120	$	10,557	$	73,996
Goodwill acquired	27,444			—			—		—		27,444
Foreign currency translation	(423		)	317			—		—		(106		)
Balance at March 4, 2017	63,701			25,956			1,120		10,557		101,334
Goodwill acquired, net	48,914			—			—		—		48,914
Foreign currency translation	3,263			(28		)	—		—		3,235
Balance at September 2, 2017	115,878			$	25,928		$	1,120	$	10,557	$	153,483

The gross carrying amount of other intangible assets and related accumulated amortization was:



(In thousands)	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation			Net
September 2, 2017
Definite-lived intangible assets:
Debt issue costs	$	4,513	$	(3,091	)	$	—		$	1,422
Non-compete agreements	6,286		(6,101		)	(6		)	179
Customer relationships	120,344		(17,083		)	5,400			108,661
Trademarks and other intangibles	30,250		(10,582		)	1,457			21,125
Total definite-lived intangible assets	$	161,393	$	(36,857	)	$	6,851		$	131,387
Indefinite-lived intangible assets:
Trademarks	48,461		—			1,276			49,737
Total intangible assets	$	209,854	$	(36,857	)	$	8,127		$	181,124
March 4, 2017
Definite-lived intangible assets:
Debt issue costs	$	4,066	$	(2,960	)	$	—		$	1,106
Non-compete agreements	6,286		(6,025		)	(65		)	196
Customer relationships	82,479		(14,013		)	(145		)	68,321
Trademarks and other intangibles	25,950		(4,917		)	(31		)	21,002
Total definite-lived intangible assets	$	118,781	$	(27,915	)	$	(241	)	$	90,625
Indefinite-lived intangible assets:
Trademarks	16,022		—			39			16,061
Total intangible assets	$	134,803	$	(27,915	)	$	(202	)	$	106,686

Amortization expense on definite-lived intangible assets was $7.9 million and $0.8 million for the six-month periods ended September 2, 2017 and August 27, 2016, respectively. The amortization expense associated with debt issue costs is included in interest expense while the remainder is in selling, general and administrative expenses in the consolidated results of operations. At September 2, 2017, the estimated future amortization expense for definite-lived intangible assets was:



(In thousands)	Remainder of Fiscal 2018		Fiscal 2019		Fiscal 2020		Fiscal 2021		Fiscal 2022
Estimated amortization expense	$	9,651	$	13,265	$	7,974	$	7,964	$	7,744

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Debt	6 Months Ended
Debt	Sep. 02, 2017
Debt Disclosure [Abstract]
Debt	Debt During the quarter, we expanded our maximum borrowing under our committed revolving credit facility to $335.0 million, maturing in November 2021. There were no significant changes to terms associated with the expansion. Outstanding borrowings under this facility were $235.2 million, as of September 2, 2017, and $45.0 million, as of March 4, 2017. Under this facility, we are subject to two financial covenants that require us to stay below a maximum debt-to-EBITDA ratio and maintain a minimum ratio of interest expense-to-EBITDA. Both ratios are computed quarterly, with EBITDA calculated on a rolling four-quarter basis. At September 2, 2017, we were in compliance with both financial covenants. Additionally, at September 2, 2017, we had a total of $24.9 million of ongoing letters of credit related to industrial revenue bonds and construction contracts that expire in fiscal 2018 and reduce availability of funds under our committed credit facility. At September 2, 2017, our debt also included $20.4 million of industrial revenue bonds that mature in fiscal years 2021 through 2043 and $0.4 million of long-term debt in Canada. The fair value of the industrial revenue bonds approximated carrying value at September 2, 2017, due to the variable interest rates on these instruments. All debt would be classified as Level 2 within the fair value hierarchy described in Note 7. We also maintain two Canadian revolving demand credit facilities totaling $12.0 million Canadian dollars. As of September 2, 2017, $1.8 million was outstanding under these facilities, and no borrowings were outstanding as of March 4, 2017. Borrowings under these facilities are made available at the sole discretion of the lenders and are payable on demand. The Company classifies any outstanding balances under this demand facility as long-term debt, as outstanding amounts can be refinanced through our committed revolving credit facility. Interest payments were $1.9 million and $0.3 million for the six months ended September 2, 2017 and August 27, 2016, respectively.

Employee Benefit Plans

6 Months Ended

Sep. 02, 2017

Compensation and Retirement Disclosure [Abstract]

Employee Benefit Plans

The Company sponsors two frozen defined-benefit pension plans: an unfunded Officers’ Supplemental Executive Retirement Plan and the Tubelite Inc. Hourly Employees’ Pension Plan. Components of net periodic benefit cost were:



	Three Months Ended						Six Months Ended
(In thousands)	September 2, 2017			August 27, 2016			September 2, 2017			August 27, 2016
Interest cost	$	133		$	139		$	266		$	278
Expected return on assets	(10		)	(10		)	(20		)	(20		)
Amortization of unrecognized net loss	57			56			114			112
Net periodic benefit cost	$	180		$	185		$	360		$	370

Income Taxes	6 Months Ended
Income Taxes	Sep. 02, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company files income tax returns in the U.S. federal jurisdiction, various U.S. state jurisdictions, Canada, Brazil and other international jurisdictions. The Company is no longer subject to U.S. federal tax examinations for years prior to fiscal 2014, or U.S. state and local income tax examinations for years prior to fiscal 2011. The Company is not currently under U.S. federal examination for years subsequent to fiscal year 2013, and there is very limited audit activity of the Company’s income tax returns in U.S. state jurisdictions or international jurisdictions. The total liability for unrecognized tax benefits at September 2, 2017 and March 4, 2017 was approximately $5.0 million and $4.5 million, respectively. Penalties and interest related to unrecognized tax benefits are recorded in income tax expense. The total liability for unrecognized tax benefits is expected to decrease by approximately $0.5 million during the next 12 months due to lapsing of statutes.

Other Non-Current Liabilities (Notes)

6 Months Ended

Sep. 02, 2017

Other Liabilities Disclosure [Abstract]

Other Non-Current Liabilities



(In thousands)	September 2, 2017		March 4, 2017
Deferred benefit from New Market Tax Credit transactions	$	16,708	$	16,708
Retirement plan obligations	9,635		9,635
Deferred compensation plan	9,710		7,463
Other	23,033		11,981
Total other non-current liabilities	$	59,086	$	45,787

Commitments and Contingent Liabilities

6 Months Ended

Sep. 02, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingent Liabilities

Operating lease commitments. As of September 2, 2017, the Company was obligated under non-cancelable operating leases for buildings and equipment. Certain leases provide for increased rental payments based upon increases in real estate taxes or operating costs. Future minimum rental payments under non-cancelable operating leases are:



(In thousands)	Remainder of Fiscal 2018		Fiscal 2019		Fiscal 2020		Fiscal 2021		Fiscal 2022		Thereafter		Total
Total minimum payments	$	7,171	$	13,371	$	11,324	$	8,322	$	7,520	$	20,820	$	68,528

Bond commitments. In the ordinary course of business, predominantly in our Architectural Services and Architectural Framing Systems segments, we are required to provide surety or performance bonds that commit payments to our customers for any non-performance. At September 2, 2017, $63.7 million of our backlog was bonded by performance bonds with a face value of $293.6 million. Performance bonds do not have stated expiration dates, as we are released from the bonds upon completion of the contract. We have never been required to make any payments related to these performance bonds with respect to any of our current portfolio of businesses.

Warranties. We reserve estimated exposures on known claims, as well as on a portion of anticipated claims, for product warranty and rework cost, based on historical product liability claims as a ratio of sales. Claim costs are deducted from the accrual when paid. Factors that could have an impact on the warranty accrual in any given period include the following: changes in manufacturing quality, changes in product mix and any significant changes in sales volume. A warranty rollforward follows:



	Six Months Ended
(In thousands)	September 2, 2017			August 27, 2016
Balance at beginning of period	$	21,933		$	16,340
Additional accruals	2,588			2,577
Claims paid	(6,800		)	(3,014		)
Acquired reserves	5,571			—
Balance at end of period	$	23,292		$	15,903

Letters of credit. At September 2, 2017, we had ongoing letters of credit related to construction contracts and certain industrial revenue bonds. The total value of letters of credit under which we were obligated as of September 2, 2017 was approximately $24.9 million, all of which have been issued under our committed revolving credit facility. Availability under this credit facility is reduced by borrowings under the facility and also by letters of credit issued under the facility.

Purchase obligations. Purchase obligations for raw material commitments and capital expenditures totaled $110.0 million as of September 2, 2017.

Litigation. We are a party to various legal proceedings incidental to our normal operating activities. In particular, like others in the construction supply and services industry, our businesses are routinely involved in various disputes and claims arising out of construction projects, sometimes involving significant monetary damages or product replacement. We are also subject to litigation arising out of general liability, employment practices, workers' compensation and automobile claims. Although it is very difficult to accurately predict the outcome of such proceedings, facts currently available indicate that no such claims will result in losses that would have a material adverse effect on our results of operations, cash flows or financial condition.

Segment Information

6 Months Ended

Sep. 02, 2017

Segment Reporting [Abstract]

Segment Information

The Company has four reporting segments: Architectural Framing Systems, Architectural Glass, Architectural Services and Large-Scale Optical (LSO).

•

The Architectural Framing Systems segment designs, engineers, fabricates and finishes the aluminum frames used in customized aluminum and glass window, curtainwall, storefront and entrance systems comprising the outside skin and entrances of commercial, institutional and high-end multi-family residential buildings. The Company has aggregated six operating segments into this reporting segment based on their similar products, customers, distribution methods, production processes and economic characteristics.


•	The Architectural Glass segment fabricates coated, high-performance glass used in customized window and wall systems comprising the outside skin of commercial, institutional and high-end multi-family residential buildings.


•	The Architectural Services segment designs, engineers, fabricates and installs the walls of glass, windows and other curtainwall products making up the outside skin of commercial and institutional buildings.


•	The LSO segment manufactures value-added glass and acrylic products primarily for framing and display applications.



	Three Months Ended						Six Months Ended
(In thousands)	September 2, 2017			August 27, 2016			September 2, 2017			August 27, 2016
Net sales from operations
Architectural Framing Systems	$	189,023		$	92,229		$	299,515		$	173,362
Architectural Glass	97,351			99,205			195,086			192,565
Architectural Services	46,829			77,734			96,979			140,554
Large-Scale Optical	20,291			21,270			38,894			41,298
Intersegment eliminations	(9,587		)	(11,983		)	(14,260		)	(21,444		)
Net sales	$	343,907		$	278,455		$	616,214		$	526,335
Operating income (loss) from operations
Architectural Framing Systems	$	16,542		$	13,001		$	28,506		$	23,232
Architectural Glass	10,258			9,616			19,581			19,147
Architectural Services	774			6,236			1,555			9,418
Large-Scale Optical	4,248			5,051			8,298			9,703
Corporate and other	(4,048		)	(856		)	(6,060		)	(2,203		)
Operating income	$	27,774		$	33,048		$	51,880		$	59,297

Due to the varying combinations and integration of individual window, storefront and curtainwall systems, it is impractical to report product revenues generated by class of product, beyond the segment revenues currently reported.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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+ Details

Share-Based Compensation (Tables)

6 Months Ended

Sep. 02, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Award transactions on stock options

Activity for the current period is summarized as follows:



Stock Options and SARs	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value
Outstanding at March 4, 2017	229,901		$	9.90
Awards exercised	(100,000	)	8.34
Outstanding and exercisable at September 2, 2017	129,901		$	11.10	3.3 Years	$	4,191,562

Nonvested share award transactions

Nonvested share activity for the current period is summarized as follows:



Nonvested Shares and Units	Number of Shares and Units		Weighted Average Grant Date Fair Value
Nonvested at March 4, 2017	279,204		$	44.80
Granted	124,416		55.40
Vested	(128,643	)	45.24
Canceled	(6,000	)	55.84
Nonvested at September 2, 2017	268,977		$	49.24

Earnings per Share (Tables)

6 Months Ended

Sep. 02, 2017

Earnings Per Share [Abstract]

Reconciliation of basic and diluted earnings per share

The following table presents a reconciliation of the share amounts used in the computation of basic and diluted earnings per share:



	Three Months Ended		Six Months Ended
(In thousands)	September 2, 2017	August 27, 2016	September 2, 2017	August 27, 2016
Basic earnings per share – weighted average common shares outstanding	28,850	28,891	28,850	28,797
Weighted average effect of nonvested share grants and assumed exercise of stock options	58	69	35	130
Diluted earnings per share – weighted average common shares and potential common shares outstanding	28,908	28,960	28,885	28,927

Inventories (Tables)

6 Months Ended

Sep. 02, 2017

Inventory Disclosure [Abstract]

Components of inventories



(In thousands)	September 2, 2017		March 4, 2017
Raw materials	$	35,737	$	22,761
Work-in-process	25,904		16,154
Finished goods	38,296		29,372
Costs and earnings in excess of billings on uncompleted contracts	3,736		5,122
Total inventories	$	103,673	$	73,409

Marketable Securities (Tables)

6 Months Ended

Sep. 02, 2017

Marketable Securities [Abstract]

Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale

arketable securities are classified as available for sale:



(In thousands)	Amortized Cost	Gross Unrealized Gains	Gross Unrealized Losses		Estimated Fair Value
September 2, 2017
Municipal bonds	10,686	185	(50	)	10,821
March 4, 2017
Municipal bonds	9,595	91	(97	)	9,589

Schedule of amortized cost and estimated fair values of investments by contractual maturity



(In thousands)	Amortized Cost		Estimated Fair Value
Due within one year	$	463	$	464
Due after one year through five years	3,453		3,511
Due after five years through 10 years	5,129		5,253
Due after 10 years through 15 years	1,291		1,242
Due beyond 15 years	350		351
Total	$	10,686	$	10,821

Fair Value Measurements (Tables)

6 Months Ended

Sep. 02, 2017

Fair Value Disclosures [Abstract]

Financial assets and liabilities measured at fair value



(In thousands)	Quoted Prices in Active Markets (Level 1)		Other Observable Inputs (Level 2)		Total Fair Value
September 2, 2017
Cash equivalents
Money market funds	$	1,888	$	—	$	1,888
Commercial paper	—		2,000		2,000
Total cash equivalents	1,888		2,000		3,888
Short-term securities
Municipal bonds	—		464		464
Long-term securities
Municipal bonds	—		10,357		10,357
Total assets at fair value	$	1,888	$	12,821	$	14,709
March 4, 2017
Cash equivalents
Money market funds	$	4,423	$	—	$	4,423
Commercial paper	—		5,500		5,500
Total cash equivalents	4,423		5,500		9,923
Short-term securities
Municipal bonds	—		548		548
Long-term securities
Municipal bonds	—		9,041		9,041
Total assets at fair value	$	4,423	$	15,089	$	19,512

- Definition

Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.

+ References + Details

Acquisitions Acquisition (Tables)

6 Months Ended

Sep. 02, 2017

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired

The purchase price allocation is based on these estimated fair values of assets acquired and liabilities assumed, as follows:



(In thousands)
Net working capital	$	36,182
Property, plant and equipment	43,961
Goodwill	55,288
Other intangible assets	71,500
Less: Long-term liabilities acquired, net	14,605
Net assets acquired	$	192,326

Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination

Other intangible assets reflect the following:



(In thousands)	Estimated fair value		Estimated useful life (in years)
Customer relationships	$	34,800	16
Tradename	32,400		Indefinite
Backlog	4,300		1.5
	$	71,500

Business Acquisition, Pro Forma Information



	Three Months Ended				Six Months Ended
In thousands, except per share data	September 2, 2017		August 27, 2016		September 2, 2017		August 27, 2016
Net sales	$	351,988	$	372,770	$	696,039	$	714,965
Net earnings	20,312		25,792		37,528		46,201
Earnings per share
Basic	0.70		0.89		1.30		1.60
Diluted	0.70		0.89		1.30		1.60

Goodwill and Other Identifiable Intangible Assets (Tables)

6 Months Ended

Sep. 02, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill attributable to each business segment

The carrying amount of goodwill attributable to each reporting segment was:



(In thousands)	Architectural Framing Systems			Architectural Glass			Architectural Services		Large-Scale Optical		Total
Balance at February 27, 2016	$	36,680		$	25,639		$	1,120	$	10,557	$	73,996
Goodwill acquired	27,444			—			—		—		27,444
Foreign currency translation	(423		)	317			—		—		(106		)
Balance at March 4, 2017	63,701			25,956			1,120		10,557		101,334
Goodwill acquired, net	48,914			—			—		—		48,914
Foreign currency translation	3,263			(28		)	—		—		3,235
Balance at September 2, 2017	115,878			$	25,928		$	1,120	$	10,557	$	153,483

Schedule of finite lived intangible assets

e gross carrying amount of other intangible assets and related accumulated amortization was:



(In thousands)	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation			Net
September 2, 2017
Definite-lived intangible assets:
Debt issue costs	$	4,513	$	(3,091	)	$	—		$	1,422
Non-compete agreements	6,286		(6,101		)	(6		)	179
Customer relationships	120,344		(17,083		)	5,400			108,661
Trademarks and other intangibles	30,250		(10,582		)	1,457			21,125
Total definite-lived intangible assets	$	161,393	$	(36,857	)	$	6,851		$	131,387
Indefinite-lived intangible assets:
Trademarks	48,461		—			1,276			49,737
Total intangible assets	$	209,854	$	(36,857	)	$	8,127		$	181,124
March 4, 2017
Definite-lived intangible assets:
Debt issue costs	$	4,066	$	(2,960	)	$	—		$	1,106
Non-compete agreements	6,286		(6,025		)	(65		)	196
Customer relationships	82,479		(14,013		)	(145		)	68,321
Trademarks and other intangibles	25,950		(4,917		)	(31		)	21,002
Total definite-lived intangible assets	$	118,781	$	(27,915	)	$	(241	)	$	90,625
Indefinite-lived intangible assets:
Trademarks	16,022		—			39			16,061
Total intangible assets	$	134,803	$	(27,915	)	$	(202	)	$	106,686

Schedule of estimated future amortization expense for identifiable intangible assets

At September 2, 2017, the estimated future amortization expense for definite-lived intangible assets was:



(In thousands)	Remainder of Fiscal 2018		Fiscal 2019		Fiscal 2020		Fiscal 2021		Fiscal 2022
Estimated amortization expense	$	9,651	$	13,265	$	7,974	$	7,964	$	7,744

Employee Benefit Plans (Tables)

6 Months Ended

Sep. 02, 2017

Compensation and Retirement Disclosure [Abstract]

Components of net periodic benefit cost

Components of net periodic benefit cost were:



	Three Months Ended						Six Months Ended
(In thousands)	September 2, 2017			August 27, 2016			September 2, 2017			August 27, 2016
Interest cost	$	133		$	139		$	266		$	278
Expected return on assets	(10		)	(10		)	(20		)	(20		)
Amortization of unrecognized net loss	57			56			114			112
Net periodic benefit cost	$	180		$	185		$	360		$	370

Other Non-Current Liabilities (Tables)

6 Months Ended

Sep. 02, 2017

Other Liabilities Disclosure [Abstract]

Other Non-current Liabilities



(In thousands)	September 2, 2017		March 4, 2017
Deferred benefit from New Market Tax Credit transactions	$	16,708	$	16,708
Retirement plan obligations	9,635		9,635
Deferred compensation plan	9,710		7,463
Other	23,033		11,981
Total other non-current liabilities	$	59,086	$	45,787

Commitments and Contingent Liabilities (Tables)

6 Months Ended

Sep. 02, 2017

Commitments and Contingencies Disclosure [Abstract]

Future minimum rental payments under noncancelable operating leases

Future minimum rental payments under non-cancelable operating leases are:



(In thousands)	Remainder of Fiscal 2018		Fiscal 2019		Fiscal 2020		Fiscal 2021		Fiscal 2022		Thereafter		Total
Total minimum payments	$	7,171	$	13,371	$	11,324	$	8,322	$	7,520	$	20,820	$	68,528

Guarantees and warranties

A warranty rollforward follows:



	Six Months Ended
(In thousands)	September 2, 2017			August 27, 2016
Balance at beginning of period	$	21,933		$	16,340
Additional accruals	2,588			2,577
Claims paid	(6,800		)	(3,014		)
Acquired reserves	5,571			—
Balance at end of period	$	23,292		$	15,903

Segment Information (Tables)

6 Months Ended

Sep. 02, 2017

Segment Reporting [Abstract]

Sales and operating income data



	Three Months Ended						Six Months Ended
(In thousands)	September 2, 2017			August 27, 2016			September 2, 2017			August 27, 2016
Net sales from operations
Architectural Framing Systems	$	189,023		$	92,229		$	299,515		$	173,362
Architectural Glass	97,351			99,205			195,086			192,565
Architectural Services	46,829			77,734			96,979			140,554
Large-Scale Optical	20,291			21,270			38,894			41,298
Intersegment eliminations	(9,587		)	(11,983		)	(14,260		)	(21,444		)
Net sales	$	343,907		$	278,455		$	616,214		$	526,335
Operating income (loss) from operations
Architectural Framing Systems	$	16,542		$	13,001		$	28,506		$	23,232
Architectural Glass	10,258			9,616			19,581			19,147
Architectural Services	774			6,236			1,555			9,418
Large-Scale Optical	4,248			5,051			8,298			9,703
Corporate and other	(4,048		)	(856		)	(6,060		)	(2,203		)
Operating income	$	27,774		$	33,048		$	51,880		$	59,297

Basis of Presentation Subsequent event (Details)	Jun. 12, 2017
EFCO Corporation
Business Acquisition [Line Items]
Percentage of voting interests acquired	100.00%

Share-Based Compensation (Details 1) - USD ($)	3 Months Ended	6 Months Ended
Share-Based Compensation (Details 1) - USD ($)	Sep. 02, 2017	Sep. 02, 2017	Aug. 27, 2016
Award transactions on stock options
Outstanding, Beginning		229,901
Outstanding shares awards exercised		(100,000)	(125,000)
Outstanding, Ending	129,901	129,901
Award transactions on stock options, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price, Beginning		$ 9.90
Weighted average exercise price, Awards exercised		8.34
Weighted average exercise price, Ending	$ 11.10	$ 11.10
Weighted average remaining contractual life, Outstanding	3 years 3 months
Aggregate intrinsic value, Outstanding	$ 4,191,562	$ 4,191,562
Deferred Compensation, Share-based Payments [Member]
Award transactions on stock options
Outstanding shares awards exercised		(100,000)

Share-Based Compensation (Details 2)	6 Months Ended
Share-Based Compensation (Details 2)	Sep. 02, 2017 $ / shares shares
Nonvested share award transactions
Nonvested Number, Beginning \| shares	279,204
Number of shares, Granted \| shares	124,416
Number of shares, Vested \| shares	(128,643)
Number of shares, Canceled \| shares	(6,000)
Nonvested Number, Ending \| shares	268,977
Nonvested share award transactions, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value, Beginning \| $ / shares	$ 44.80
Weighted average grant date fair value, Granted \| $ / shares	55.40
Weighted average grant date fair value, Vested \| $ / shares	45.24
Weighted average grant date fair value, Canceled \| $ / shares	55.84
Weighted average grant date fair value, Ending \| $ / shares	$ 49.24

Share-Based Compensation (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation			$ 3,063	$ 2,935
Cash proceeds from exercise of stock options	$ 800	$ 1,300
Aggregate intrinsic value of securities	4,800	$ 4,500
Total unrecognized compensation cost related to nonvested share	$ 10,100		$ 10,100
Document Period End Date			Sep. 02, 2017
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period, Nonvested	23 months
Total fair value of shares vested			$ 6,900

Earnings per Share (Details) - shares	3 Months Ended		6 Months Ended
Earnings per Share (Details) - shares	Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Reconciliation of basic and diluted earnings per share
Basic earnings per share - weighted common shares outstanding	28,850,000	28,891,000	28,850,000	28,797,000
Incremental Common Shares Attributable to Share-based Payment Arrangements	58,000	69,000	35,000	130,000
Weighted Average Number of Shares Outstanding, Diluted	28,908,000	28,960,000	28,885,000	28,927,000
Stock options excluded from the calculation of earnings per share because the exercise price was greater than the average market price of the common shares	0	0

Inventories (Details) - USD ($) $ in Thousands	Sep. 02, 2017	Mar. 04, 2017
Components of inventories
Raw materials	$ 35,737	$ 22,761
Work-in-process	25,904	16,154
Finished goods	38,296	29,372
Costs and earnings in excess of billings on uncompleted contracts	3,736	5,122
Total inventories	$ 103,673	$ 73,409

Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 02, 2017	Mar. 04, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 10,686
Estimated Fair Value	10,821
Municipal bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	10,686	$ 9,595
Gross Unrealized Gains	185	91
Gross Unrealized Losses	50	97
Estimated Fair Value	$ 10,821	$ 9,589

Marketable Securities (Details 2) $ in Thousands	Sep. 02, 2017 USD ($)
Amortized Cost
Due within one year	$ 463
Due after one year through five years	3,453
Due after five years through 10 years	5,129
Due after 10 years through 15 years	1,291
Due beyond 15 years	350
Total	10,686
Estimated Fair Value
Due within one year	464
Due after one year through five years	3,511
Due after five years through 10 years	5,253
Due after 10 years through 15 years	1,242
Due beyond 15 years	351
Total	$ 10,821

Marketable Securities (Details Textual) $ in Millions	Sep. 02, 2017 USD ($)
Marketable Securities [Abstract]
Greater Than or Equal to 12 Months, Fair Value	$ 1.2
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (0.1)

Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 02, 2017	Mar. 04, 2017
Cash equivalents
Total cash equivalents	$ 3,888	$ 9,923
Total assets at fair value	14,709	19,512
Money market funds
Cash equivalents
Total cash equivalents		4,423
Commercial paper
Cash equivalents
Total cash equivalents	2,000	5,500
Quoted Prices in Active Markets (Level 1)
Cash equivalents
Total cash equivalents	1,888	4,423
Total assets at fair value	1,888	4,423
Quoted Prices in Active Markets (Level 1) \| Money market funds
Cash equivalents
Total cash equivalents		4,423
Quoted Prices in Active Markets (Level 1) \| Commercial paper
Cash equivalents
Total cash equivalents	0	0
Quoted Prices in Active Markets (Level 1) \| Municipal bonds
Cash equivalents
Available-for-sale Securities, Current		0
Other Observable Inputs (Level 2)
Cash equivalents
Total cash equivalents	2,000	5,500
Total assets at fair value	12,821	15,089
Other Observable Inputs (Level 2) \| Money market funds
Cash equivalents
Total cash equivalents		0
Other Observable Inputs (Level 2) \| Commercial paper
Cash equivalents
Total cash equivalents	2,000
Money market funds
Cash equivalents
Total cash equivalents	1,888
Money market funds \| Quoted Prices in Active Markets (Level 1)
Cash equivalents
Total cash equivalents	1,888
Money market funds \| Other Observable Inputs (Level 2)
Cash equivalents
Total cash equivalents	0
Municipal bonds
Cash equivalents
Available-for-sale Securities, Current	464	548
Available-for-sale Securities, Noncurrent	10,357	9,041
Municipal bonds \| Quoted Prices in Active Markets (Level 1)
Cash equivalents
Available-for-sale Securities, Current	0
Available-for-sale Securities, Noncurrent	0	0
Municipal bonds \| Other Observable Inputs (Level 2)
Cash equivalents
Available-for-sale Securities, Current	464	548
Available-for-sale Securities, Noncurrent	$ 10,357	$ 9,041

Acquisition (Details) - EFCO Corporation - USD ($) $ in Millions		3 Months Ended
	Jun. 12, 2017	Sep. 02, 2017
Business Acquisition [Line Items]
Percentage of voting interests acquired	100.00%
Sales		$ 63.7
Operating income		$ 1.3
Revolving credit facility
Business Acquisition [Line Items]
Debt payment to acquire business	$ 192.0
Payable installment	$ 7.5
Payment period	3 years

Acquisition (Details 1) - USD ($) $ in Thousands	Sep. 02, 2017	Jun. 12, 2017	Mar. 04, 2017	Feb. 27, 2016
Business Acquisition [Line Items]
Goodwill	$ 153,483		$ 101,334	$ 73,996
EFCO Corporation
Business Acquisition [Line Items]
Net working capital		$ 36,182
Property, plant and equipment		43,961
Goodwill		55,288
Other intangible assets		71,500
Less: Long-term liabilities acquired, net		14,605
Net assets acquired		$ 192,326

Acquisition (Details 2) - EFCO Corporation $ in Thousands	Jun. 12, 2017 USD ($)
Business Acquisition [Line Items]
Other intangible assets	$ 71,500
Customer relationships
Business Acquisition [Line Items]
Other intangible assets	$ 34,800
Estimated useful life (in years)	16 years
Backlog
Business Acquisition [Line Items]
Other intangible assets	$ 4,300
Estimated useful life (in years)	1 year 6 months
Tradename
Business Acquisition [Line Items]
Other intangible assets	$ 32,400

Acquisitions (Details 3) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Business Combinations [Abstract]
Net sales	$ 351,988	$ 372,770	$ 696,039	$ 714,965
Net earnings	$ 20,312	$ 25,792	$ 37,528	$ 46,201
Earnings per share
Basic (USD per share)	$ 0.70	$ 0.89	$ 1.30	$ 1.60
Diluted (USD per share)	$ 0.70	$ 0.89	$ 1.30	$ 1.60

Goodwill and Other Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Sep. 02, 2017	Mar. 04, 2017
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	$ 101,334	$ 73,996
Goodwill acquired		27,444
Goodwill acquired, net	48,914
Foreign currency translation	3,235	(106)
Goodwill, Ending	153,483	101,334
Architectural Glass
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	25,956	25,639
Goodwill acquired		0
Goodwill acquired, net	0
Foreign currency translation	(28)	317
Goodwill, Ending	25,928	25,956
Architectural Framing Systems
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	63,701	36,680
Goodwill acquired		27,444
Goodwill acquired, net	48,914
Foreign currency translation	3,263	(423)
Goodwill, Ending	115,878	63,701
Architectural Services
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	1,120	1,120
Goodwill acquired		0
Goodwill acquired, net	0
Foreign currency translation	0	0
Goodwill, Ending	1,120	1,120
Large-Scale Optical
Schedule of goodwill attributable to each business segment
Goodwill, Beginning	10,557	10,557
Goodwill acquired		0
Goodwill acquired, net	0
Foreign currency translation	0	0
Goodwill, Ending	$ 10,557	$ 10,557

Goodwill and Other Identifiable Intangible Assets (Details 1) - USD ($) $ in Thousands	Sep. 02, 2017	Mar. 04, 2017
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	$ 161,393	$ 118,781
Accumulated Amortization	(36,857)	(27,915)
Foreign Currency Translation	6,851	(241)
Net	131,387	90,625
Intangible Assets, Gross (Excluding Goodwill)	209,854	134,803
Intangible Assets Accumulated Amortization	(36,857)	(27,915)
Intangible Assets Foreign Currency Translation	8,127	(202)
Intangible Assets, Net (Excluding Goodwill)	181,124	106,686
Debt issue costs
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	4,513	4,066
Accumulated Amortization	(3,091)	(2,960)
Foreign Currency Translation	0	0
Net	1,422	1,106
Non-compete agreements
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	6,286	6,286
Accumulated Amortization	(6,101)	(6,025)
Foreign Currency Translation	(6)	(65)
Net	179	196
Customer relationships
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	120,344	82,479
Accumulated Amortization	(17,083)	(14,013)
Foreign Currency Translation	5,400	(145)
Net	108,661	68,321
Trademarks and other intangibles
Schedule of finite lived identifiable intangible assets
Gross Carrying Amount	30,250	25,950
Accumulated Amortization	(10,582)	(4,917)
Foreign Currency Translation	1,457	(31)
Net	21,125	21,002
Indefinite-Lived Intangible Assets (Excluding Goodwill)	48,461	16,022
Indefinite Lived Identifiable Intangible Assets, Foreign Currency Translation Adjustments	1,276	39
Indefinite-lived Intangible Assets (Excluding Goodwill), Net of translation adjustments	$ 49,737	$ 16,061

Goodwill and Other Identifiable Intangible Assets (Details 2) $ in Thousands	Sep. 02, 2017 USD ($)
Schedule of estimated future amortization expense for identifiable intangible assets
Estimated amortization expense, Remainder of Fiscal 2018	$ 9,651
Estimated amortization expense, Fiscal 2019	13,265
Estimated amortization expense, Fiscal 2020	7,974
Estimated amortization expense, Fiscal 2021	7,964
Estimated amortization expense, Fiscal 2022	$ 7,744

Goodwill and Other Identifiable Intangible Assets (Details Textual) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Sep. 02, 2017	Aug. 27, 2016
Goodwill and Other Identifiable Intangible Assets (Textual) [Abstract]
Amortization expense on identifiable intangible assets	$ 7.9	$ 0.8

Debt (Details)	3 Months Ended	6 Months Ended
Debt (Details)	Sep. 02, 2017 USD ($)	Sep. 02, 2017 CAD ($)	Aug. 27, 2016 USD ($)	Sep. 02, 2017 USD ($)	Mar. 04, 2017 CAD ($)	Mar. 04, 2017 USD ($)
Line of Credit Facility [Line Items]
Document Period End Date		Sep. 02, 2017
Interest payments	$ 1,900,000		$ 300,000
Revolving credit facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 12,000,000		$ 335,000,000.0
Outstanding borrowings		$ 1,800,000		235,200,000	$ 0	$ 45,000,000
Industrial Revenue Bonds
Line of Credit Facility [Line Items]
Debt				20,400,000
Industrial Revenue Bonds \| Letter of credit
Line of Credit Facility [Line Items]
Debt				24,900,000
Canada \| Industrial Revenue Bonds
Line of Credit Facility [Line Items]
Debt				$ 400,000

Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Thousands	Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Components of net periodic benefit cost
Interest cost	$ 133	$ 139	$ 266	$ 278
Expected return on assets	(10)	(10)	(20)	(20)
Amortization of unrecognized net loss	57	56	114	112
Net periodic benefit cost	$ 180	$ 185	$ 360	$ 370

Income Taxes (Details) - USD ($) $ in Millions	Sep. 02, 2017	Mar. 04, 2017
Income Tax Disclosure [Abstract]
Liability for uncertain tax positions, current and noncurrent	$ 5.0	$ 4.5
Liability for unrecognized tax benefit, expected decrease	$ 0.5

Other Non-Current Liabilities Other non-current liabilities (Details) - USD ($) $ in Thousands	Sep. 02, 2017	Mar. 04, 2017
Other Liabilities Disclosure [Abstract]
Deferred benefit from New Market Tax Credit transactions	$ 16,708	$ 16,708
Retirement plan obligations	9,635	9,635
Deferred compensation plan	9,710	7,463
Other	23,033	11,981
Total other non-current liabilities	$ 59,086	$ 45,787

Commitments and Contingent Liabilities (Details) $ in Thousands	Sep. 02, 2017 USD ($)
Future minimum rental payments under noncancelable operating leases
Total minimum payments, Remainder of Fiscal 2018	$ 7,171
Total minimum payments, Fiscal 2019	13,371
Total minimum payments, Fiscal 2020	11,324
Total minimum payments, Fiscal 2021	8,322
Total minimum payments, Fiscal 2022	7,520
Total minimum payments, Thereafter	20,820
Total	$ 68,528

Commitments and Contingent Liabilities (Details 1) - USD ($) $ in Thousands	6 Months Ended
	Sep. 02, 2017	Aug. 27, 2016
Guarantees and warranties
Balance at beginning of period	$ 21,933	$ 16,340
Additional accruals	2,588	2,577
Claims paid	(6,800)	(3,014)
Acquired reserves	5,571	0
Balance at end of period	$ 23,292	$ 15,903

Commitments and Contingent Liabilities (Details Textual) $ in Millions	Sep. 02, 2017 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Company's backlog bonded by performance bonds	$ 63.7
Face value of performance bonds	293.6
Line of Credit Facility [Line Items]
Purchase obligations	110.0
Industrial Revenue Bonds
Line of Credit Facility [Line Items]
Debt	20.4
Letter of credit \| Industrial Revenue Bonds
Line of Credit Facility [Line Items]
Debt	$ 24.9

Segment Information Segment Information (Details Textual)	3 Months Ended	6 Months Ended
	Sep. 02, 2017 Segment	Sep. 02, 2017 Reportable_Segment
Segment Reporting [Abstract]
Number of Reportable Segments \| Segment	4
Number of Operating Segments \| Reportable_Segment		6

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Segment Information (Details) - USD ($) $ in Thousands	Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Sales and operating income data
Net sales	$ 343,907	$ 278,455	$ 616,214	$ 526,335
Operating income (loss)	27,774	33,048	51,880	59,297
Architectural Glass
Sales and operating income data
Net sales	97,351	99,205	195,086	192,565
Operating income (loss)	10,258	9,616	19,581	19,147
Architectural Services
Sales and operating income data
Net sales	46,829	77,734	96,979	140,554
Operating income (loss)	774	6,236	1,555	9,418
Architectural Framing Systems
Sales and operating income data
Net sales	189,023	92,229	299,515	173,362
Operating income (loss)	16,542	13,001	28,506	23,232
Large-Scale Optical
Sales and operating income data
Net sales	20,291	21,270	38,894	41,298
Operating income (loss)	4,248	5,051	8,298	9,703
Intersegment eliminations
Sales and operating income data
Net sales	(9,587)	(11,983)	(14,260)	(21,444)
Corporate and other
Sales and operating income data
Operating income (loss)	$ (4,048)	$ (856)	$ (6,060)	$ (2,203)