BUSINESS SEGMENT INFORMATION (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013 Segment	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
BUSINESS SEGMENT INFORMATION [Abstract]
Number of operating segments	5
Segment disclosure [Abstract]
Net sales	$ 262.8	$ 257.4	$ 499.5	$ 492.9
Operating profit (loss)	25.0	31.1	41.3	52.5
Assets	948.1		948.1		910.6
Depreciation, depletion, and amortization	12.5	11.1	24.3	21.8
Capital expenditures	21.5	15.6	44.1	32.2
Research and development (income) expense	3.0	2.6	6.1	5.1
Segment Reconciling Items [Member]
Segment disclosure [Abstract]
Net sales	(9.6)	(7.8)
Intersegments Eliminations [Member]
Segment disclosure [Abstract]
Net sales			(16.2)	(14.9)
Corporate [Member]
Segment disclosure [Abstract]
Operating profit (loss)	(5.8)	(5.7)	(12.0)	(11.7)
Assets	89.1		89.1		69.2
Depreciation, depletion, and amortization	0.9	0.7	1.7	1.4
Capital expenditures	3.7	0.6	5.8	2.1
Research and development (income) expense	(0.1)	(0.2)	0	(0.1)
Performance Materials [Member] | Segment Reconciling Items [Member]
Segment disclosure [Abstract]
Net sales	127.2	131.1	244.4	256.3
Operating profit (loss)	18.9	22.5	34.8	44.0
Assets	441.0		441.0		454.0
Depreciation, depletion, and amortization	4.9	4.9	9.7	9.5
Capital expenditures	6.4	4.3	10.5	10.8
Research and development (income) expense	1.8	1.9	3.6	3.6
Construction Technologies [Member] | Segment Reconciling Items [Member]
Segment disclosure [Abstract]
Net sales	56.0	61.3	98.8	112.3
Operating profit (loss)	2.8	6.3	1.0	7.2
Assets	163.7		163.7		157.6
Depreciation, depletion, and amortization	1.3	1.3	2.7	2.7
Capital expenditures	0.4	3.7	0.6	6.3
Research and development (income) expense	0.7	0.6	1.4	1.2
Energy Services [Member] | Segment Reconciling Items [Member]
Segment disclosure [Abstract]
Net sales	77.7	61.1	150.8	116.4
Operating profit (loss)	8.8	7.7	17.0	12.5
Assets	250.2		250.2		225.8
Depreciation, depletion, and amortization	5.3	4.2	10.1	8.2
Capital expenditures	11.0	7.0	27.1	13.0
Research and development (income) expense	0.6	0.3	1.1	0.4
Transportation [Member] | Segment Reconciling Items [Member]
Segment disclosure [Abstract]
Net sales	11.5	11.7	21.7	22.8
Operating profit (loss)	0.3	0.3	0.5	0.5
Assets	4.1		4.1		4.0
Depreciation, depletion, and amortization	0.1	0	0.1	0
Capital expenditures	$ 0	$ 0	$ 0.1	$ 0