CONTINGENT LIABILITIES AND OTHER MATTERS (Details 3) (Consortium arrangements, Thermal Equipment and Services reportable segment, USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended
	Mar. 28, 2015	Dec. 31, 2014	Mar. 28, 2015
Consortium arrangements | Thermal Equipment and Services reportable segment
Collaborative Arrangements
Entity's share of the aggregate contract value on open consortium arrangements	$ 81.4	$ 65.2	$ 81.4
Percentage of entity's share of the aggregate contract value, recognized as revenue	75.00%	87.00%
Aggregate contract value on open consortium arrangements	336.2	291.1	336.2
Estimated fair value of potential obligation recorded as a liabilities	$ 0.3	$ 0.7	$ 0.3