Restructuring Activities (Tables)

12 Months Ended

Dec. 31, 2011

Restructuring and Related Activities [Abstract]

Schedule of Restructuring and Related Costs

The following tables summarize the Company’s restructuring activities for the years ended December 31, 2011, 2010 and 2009:

	Year Ended December 31, 2011
	Energy & Chemicals			Distribution & Storage			BioMedical			Corporate			Total
Balance as of January 1, 2011	$	103		$	387		$	2,088		$	—		$	2,578
Restructuring charges	—			315			4,940			437			5,692
Asset impairment	—			—			(1,218		)	—			(1,218		)
Cash payments	(103		)	(587		)	(4,812		)	(437		)	(5,939		)
Balance as of December 31, 2011	$	—		$	115		$	998		$	—		$	1,113

	Year Ended December 31, 2010
	Energy & Chemicals			Distribution & Storage			BioMedical			Corporate			Total
Balance as of January 1, 2010	$	682		$	1,608		$	503		$	88		$	2,881
Restructuring charges	—			(45		)	4,723			78			4,756
Asset impairment	—			—			(1,546		)	(100		)	(1,646		)
Cash payments	(579		)	(1,176		)	(1,592		)	(66		)	(3,413		)
Balance as of December 31, 2010	$	103		$	387		$	2,088		$	—		$	2,578

	Year Ended December 31, 2009
	Energy & Chemicals			Distribution & Storage			BioMedical			Corporate			Total
Balance as of January 1, 2009	$	—		$	—		$	—		$	—		$	—
Restructuring charges	1,004			3,397			3,336			283			8,020
Asset impairment	—			(234		)	(996		)	—			(1,230		)
Cash payments	(322		)	(1,555		)	(1,837		)	(195		)	(3,909		)
Balance as of December 31, 2009	$	682		$	1,608		$	503		$	88		$	2,881