PENSION AND POST RETIREMENT PLANS (Details 2) (Pension Benefits, USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair value of plan assets, by asset category
Total	$ 172.8	$ 149.2	$ 126.0
Total
Fair value of plan assets, by asset category
Total	172.8	149.2
Total | Cash
Fair value of plan assets, by asset category
Total	6.9	8.3
Total | U.S. large-cap
Fair value of plan assets, by asset category
Total	64.2	53.8
Total | U.S. mid- and small-cap
Fair value of plan assets, by asset category
Total	35.7	29.8
Total | International large-cap
Fair value of plan assets, by asset category
Total	19.0	16.7
Total | International small-cap
Fair value of plan assets, by asset category
Total	7.2	4.3
Total | U.S. Treasuries
Fair value of plan assets, by asset category
Total	0.6	0.8
Total | Municipal bonds
Fair value of plan assets, by asset category
Total	0.1	0.2
Total | Investment grade U.S. corporate bonds
Fair value of plan assets, by asset category
Total	1.9	2.0
Total | High-yield U.S. corporate bonds
Fair value of plan assets, by asset category
Total	6.7	6.4
Total | Emerging markets fixed income
Fair value of plan assets, by asset category
Total	8.9	4.3
Total | Mortgage-backed securities
Fair value of plan assets, by asset category
Total	12.7	14.0
Total | Real estate partnerships interests
Fair value of plan assets, by asset category
Total	8.6	7.8
Total | Private equity partnership interests
Fair value of plan assets, by asset category
Total	0.3	0.8
Quoted Prices in Active Markets (Level 1)
Fair value of plan assets, by asset category
Total	141.9	117.2
Quoted Prices in Active Markets (Level 1) | Cash
Fair value of plan assets, by asset category
Total	6.9	8.3
Quoted Prices in Active Markets (Level 1) | U.S. large-cap
Fair value of plan assets, by asset category
Total	64.2	53.8
Quoted Prices in Active Markets (Level 1) | U.S. mid- and small-cap
Fair value of plan assets, by asset category
Total	35.7	29.8
Quoted Prices in Active Markets (Level 1) | International large-cap
Fair value of plan assets, by asset category
Total	19.0	16.7
Quoted Prices in Active Markets (Level 1) | International small-cap
Fair value of plan assets, by asset category
Total	7.2	4.3
Quoted Prices in Active Markets (Level 1) | Emerging markets fixed income
Fair value of plan assets, by asset category
Total	8.9	4.3
Significant Observable Inputs (Level 2)
Fair value of plan assets, by asset category
Total	22.0	23.4
Significant Observable Inputs (Level 2) | U.S. Treasuries
Fair value of plan assets, by asset category
Total	0.6	0.8
Significant Observable Inputs (Level 2) | Municipal bonds
Fair value of plan assets, by asset category
Total	0.1	0.2
Significant Observable Inputs (Level 2) | Investment grade U.S. corporate bonds
Fair value of plan assets, by asset category
Total	1.9	2.0
Significant Observable Inputs (Level 2) | High-yield U.S. corporate bonds
Fair value of plan assets, by asset category
Total	6.7	6.4
Significant Observable Inputs (Level 2) | Mortgage-backed securities
Fair value of plan assets, by asset category
Total	12.7	14.0
Significant Unobservable Inputs (Level 3)
Fair value of plan assets, by asset category
Total	8.9	8.6
Significant Unobservable Inputs (Level 3) | Real estate partnerships interests
Fair value of plan assets, by asset category
Total	8.6	7.8
Significant Unobservable Inputs (Level 3) | Private equity partnership interests
Fair value of plan assets, by asset category
Total	$ 0.3	$ 0.8