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COMMITMENTS, CONTINGENCIES, AND GUARANTEES (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 27, 2021	Mar. 28, 2020
Remediation reserves
Environmental reserves, discount rate (as a percent)	0.00%
Estimated costs to complete future remediation efforts	$ 1.9	$ 2.0
Long-term commitment
Outstanding purchase commitments on capital projects	41.3
Surety Bonds and Letters of Credit
Outstanding letters of credit	50.9
Open Projects
Surety Bonds and Letters of Credit
Payment and performance bonds outstanding	27.0
Completed Projects
Surety Bonds and Letters of Credit
Payment and performance bonds outstanding	4.0
Insurance Contracts
Surety Bonds and Letters of Credit
Outstanding letters of credit	43.8
Revenue Bonds
Surety Bonds and Letters of Credit
Outstanding letters of credit	$ 7.1

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- Definition

Amount of outstanding payment and performance bonds outstanding as of the report date.

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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
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Rate applied to the undiscounted amount of environmental loss contingencies to arrive at the present value recorded as of the balance sheet date.

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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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The minimum amount the entity agreed to spend under the long-term purchase commitment.

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