SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Estimated Useful Lives (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Non-cash assets addition to buildings	$ 33.6
Buildings and improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives		3 years
Buildings and improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives		43 years
Machinery and equipment, including leases [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives		1 year
Machinery and equipment, including leases [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives		13 years