Commitments and Contingent Liabilities (Details Textual) $ in Millions	12 Months Ended
Feb. 27, 2021 USD ($) Facility	Feb. 29, 2020 USD ($)
Long-term Purchase Commitment [Line Items]
Face value of performance bonds	$ 1,100.0
Company's backlog bonded by performance bonds	532.4
Project related liability	4.6	$ 49.0
Project Related Insurance Proceeds	15.0	15.0
Total value of letter of credit	18.7
Purchase obligations	$ 253.5
Number of properties acquired with historical environmental conditions \| Facility	1
Current Liabilities and Other Non Current Liabilities
Long-term Purchase Commitment [Line Items]
Reserve for environmental liabilities	$ 0.5	$ 0.7

Companies backlog related to sales.

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- Definition

Number Of Properties Acquired With Historical Environmental Conditions

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- Definition

Project Related Liability

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- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
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- Definition

Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

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