Segment, Geographic, and Market Information - Financial Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013 Segment	Dec. 31, 2012	Dec. 31, 2011
Segment, Geographic, and Market Information [Abstract]
Number of operating segments									5
Segment disclosure [Abstract]
Net sales	$ 257.5	$ 263.5	$ 258.8	$ 232.9	$ 235.6	$ 249.2	$ 251.4	$ 231.2	$ 1,012.7	$ 967.4	$ 926.3
Operating profit (loss)	19.2	(24.6)	24.9	16.3	18.0	28.5	30.4	20.9	35.8	97.8	86.0
Assets	878.7				910.6				878.7	910.6	849.1
Depreciation, depletion, and amortization									49.7	45.3	42.1
Capital expenditures									87.7	74.5	61.0
Research and development expenses									10.6	8.4	7.3
Performance Materials [Member]
Segment disclosure [Abstract]
Net sales	125.4	126.1	123.2	113.4	111.1	116.7	125.0	120.9	488.1	473.7	459.2
Operating profit (loss)	17.4	(32.1)	18.8	15.9	14.8	18.4	21.8	21.0	20.0	76.0	67.0
Assets	384.1				454.0				384.1	454.0	430.8
Depreciation, depletion, and amortization									18.5	19.6	20.6
Capital expenditures									25.6	29.4	27.3
Research and development expenses									5.6	5.2	4.7
Construction Technologies [Member]
Segment disclosure [Abstract]
Net sales	56.5	62.8	56.0	42.8	50.1	60.6	61.4	51.0	218.1	223.1	251.9
Operating profit (loss)	3.7	9.3	2.8	(1.8)	1.3	7.0	6.3	1.0	14.0	15.6	17.3
Assets	166.6				157.6				166.6	157.6	159.4
Depreciation, depletion, and amortization									5.3	5.5	5.4
Capital expenditures									2.6	8.3	8.3
Research and development expenses									2.9	2.3	2.3
Energy Services [Member]
Segment disclosure [Abstract]
Net sales	71.8	72.8	77.7	73.1	71.8	69.1	61.1	55.3	295.4	257.3	194.7
Operating profit (loss)	4.7	3.8	8.8	8.2	8.3	7.9	7.7	4.8	25.5	28.7	21.3
Assets	263.3				225.8				263.3	225.8	194.7
Depreciation, depletion, and amortization									22.4	17.1	13.3
Capital expenditures									45.0	31.5	23.1
Research and development expenses									2.1	0.9	0.2
Transportation [Member]
Segment disclosure [Abstract]
Net sales									45.5	44.0	54.1
Operating profit (loss)									1.2	0.8	2.2
Assets	4.1				4.0				4.1	4.0	3.9
Depreciation, depletion, and amortization									0.1	0.1	0.1
Capital expenditures									0.3	0.1	0.2
Intersegment Sales [Member]
Segment disclosure [Abstract]
Net sales	(7.3)	(10.9)	(9.6)	(6.6)	(7.9)	(7.9)	(7.8)	(7.1)	(34.4)	(30.7)	(33.6)
Corporate [Member]
Segment disclosure [Abstract]
Operating profit (loss)	(6.8)	(6.1)	(5.8)	(6.2)	(6.5)	(5.0)	(5.7)	(6.1)	(24.9)	(23.3)	(21.8)
Assets	60.6				69.2				60.6	69.2	60.3
Depreciation, depletion, and amortization									3.4	3.0	2.7
Capital expenditures									14.2	5.2	2.1
Research and development expenses									$ 0	$ 0	$ 0.1