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COMMITMENTS, CONTINGENCIES, AND GUARANTEES (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 27, 2020
Jun. 29, 2019
Long-term commitment    
Outstanding purchase commitments on capital projects $ 23.0  
Surety Bonds and Letters of Credit    
Outstanding letters of credit $ 37.3  
Remediation reserves    
Environmental reserves, discount rate (as a percent) 0.00%  
Estimated costs to complete future remediation efforts $ 1.9 $ 2.0
Open Projects    
Surety Bonds and Letters of Credit    
Payment and performance bonds outstanding 6.8  
Completed Projects    
Surety Bonds and Letters of Credit    
Payment and performance bonds outstanding 8.6  
Insurance Contracts    
Surety Bonds and Letters of Credit    
Outstanding letters of credit 27.5  
Revenue Bonds    
Surety Bonds and Letters of Credit    
Outstanding letters of credit $ 9.8