Summary of Significant Accounting Policies - Revenue By Segment (Details)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue by segment [Abstract]
Percentage of revenue by segment (in hundredths)	100.00%	100.00%	100.00%
Performance materials [Member]
Revenue by segment [Abstract]
Percentage of revenue by segment (in hundredths)	48.00%	49.00%	50.00%
Construction technologies [Member]
Revenue by segment [Abstract]
Percentage of revenue by segment (in hundredths)	22.00%	23.00%	27.00%
Energy services [Member]
Revenue by segment [Abstract]
Percentage of revenue by segment (in hundredths)	29.00%	27.00%	21.00%
Transportation [Member]
Revenue by segment [Abstract]
Percentage of revenue by segment (in hundredths)	4.00%	5.00%	6.00%
Intersegment sales [Member]
Revenue by segment [Abstract]
Percentage of revenue by segment (in hundredths)	(3.00%)	(4.00%)	(4.00%)