Asset Impairments (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill and Intangible Asset Impairment		$ 207,672
Share Price		$ 17.96	$ 34.20	$ 95.64
Impairment of Intangible Assets, Finite-lived		$ 38,083
Impairment of Long-Lived Assets Held-for-use		9,361
Asset impairments		253,560	$ 0	$ 0
Asset Impairments Charges and Other PP&E Impairment		255,116	$ 0	$ 0
Energy & Chemicals [Member]
Goodwill and Intangible Asset Impairment		65,023
Impairment of Intangible Assets, Finite-lived		0
Impairment of Long-Lived Assets Held-for-use		3,773
Asset Impairments Charges and Other PP&E Impairment		68,796
Distribution & Storage [Member]
Goodwill and Intangible Asset Impairment		316
Impairment of Intangible Assets, Finite-lived		0
Impairment of Long-Lived Assets Held-for-use	[1]	1,704
Asset Impairments Charges and Other PP&E Impairment		2,020
BioMedical [Member]
Goodwill and Intangible Asset Impairment		142,333
Impairment of Intangible Assets, Finite-lived		38,083
Impairment of Long-Lived Assets Held-for-use		3,884
Asset Impairments Charges and Other PP&E Impairment		184,300
Energy & Chemical and BioMedical [Member]
Impairment of Long-Lived Assets Held-for-use		7,657
Customer Relationships [Member]
Impairment of Intangible Assets, Finite-lived		15,667
Unpatented Technology [Member]
Impairment of Intangible Assets, Finite-lived		22,417
Cost of Sales [Member]
Asset impairments		$ 1,556

[1] Asset impairments of $1,556 were included in cost of sales on the consolidated statement of operations for the year ended December 31, 2015.