Business Combinations Contigent Consideration (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition, Contingent Consideration [Line Items]
Accrued contingent consideration (1)	$ 2,289	$ 1,990	$ 7,067
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration Recorded in Income, Liability	299	(3,777)
Payment of Contingent Consideration		1,300
Distribution & Storage [Member]
Business Acquisition, Contingent Consideration [Line Items]
Accrued contingent consideration (1)	0	0	841
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration Recorded in Income, Liability	0	459
Payment of Contingent Consideration		1,300
BioMedical [Member]
Business Acquisition, Contingent Consideration [Line Items]
Accrued contingent consideration (1)	2,289	1,990	6,226
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration Recorded in Income, Liability	299	(4,236)
Payment of Contingent Consideration		0
Maximum [Member] | BioMedical [Member]
Business Acquisition, Contingent Consideration [Line Items]
Accrued contingent consideration (1)	$ 3,000