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Commitments and Contingent Liabilities (Details Textual) $ in Thousands | 12 Months Ended
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Mar. 03, 2018 USD ($) Sale_And_Leaseback_Agreement Facility | Mar. 04, 2017 USD ($) | Feb. 27, 2016 USD ($)
Long-term Purchase Commitment [Line Items] |  |  |
Total rental expense | $ 21,800 | $ 16,900 | $ 15,500
Future minimum lease payments | $ 63,319 |  |
Number of sale and leaseback agreements | Sale_And_Leaseback_Agreement | 1 |  |
Average annual lease payment | $ 1,000 |  |
Company's backlog bonded by performance bonds | 238,600 |  |
Face value of performance bonds | 519,300 |  |
Total value of letter of credit | 23,500 |  |
Purchase obligations | $ 183,900 |  |
Number of properties acquired with historical environmental conditions | Facility | 1 |  |
Proceeds from new markets tax credit transaction, net of deferred costs | $ 6,000 |  |
Deferred benefit from New Markets Tax Credit transactions | 16,708 | 16,708 |
Deferred Costs |  | 4,500 |
Other current and non-current liabilities |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Deferred gain on sale leaseback arrangements | 1,300 |  |
Current Liabilities and Other Non Current Liabilities |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Reserve for environmental liabilities | 1,300 | $ 1,400 |
Sotawall |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Total rental expense | 2,600 |  |
Future minimum lease payments | $ 14,900 |  |

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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 + Details
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