DERIVATIVE FINANCIAL INSTRUMENTS (Details 1) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Copper Commodity Forward Contracts
Derivative [Line Items]
Notional amount	$ 47.1	$ 45.3	$ 61.2
Zinc Commodity Forward Contracts
Derivative [Line Items]
Notional amount	5.7	4.5	6.6
Lead Commodity Forward Contracts
Derivative [Line Items]
Notional amount	18.6	22.8	34.6
Natural Gas Commodity Forward Contracts
Derivative [Line Items]
Notional amount	$ 10.3	$ 5.5	$ 7.8