Goodwill (Additional Disclosures) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	May 31, 2013	Dec. 31, 2013 segment	Dec. 31, 2012 segment
Goodwill [Line Items]
Number of reporting units		4
Number of reporting units with goodwill balance			2
Goodwill acquired	$ 39.3
Energy Chemical Technologies [Member]
Goodwill [Line Items]
Goodwill acquired	18.7
Consumer and Industrial Chemical Technologies [Member]
Goodwill [Line Items]
Goodwill acquired	$ 20.6