COMMITMENTS, CONTINGENCIES, AND GUARANTEES (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014
Commitments and Contingencies Disclosure [Abstract]
Estimated costs to complete future remediation efforts	$ 3.4	$ 3.2
Surety Bonds and Letters of Credit [Abstract]
Payment and performance bonds outstanding	$ 0.5
Expiration period of surety bonds	2 years
Completed projects still under warranty	$ 13.0
Outstanding letters of credit	25.4
Irrevocable letters of credit in favor of our insurers outstanding	15.6
Irrevocable letters of credit in favor of our industrial development revenue bonds outstanding	9.8
Approximate identification and removal of contaminants costs	0.6
Capital addition purchase commitments
Long-term Purchase Commitment [Line Items]
Outstanding purchase commitments on capital projects	$ 5.8