Acquisition and Divestiture - Divestitures (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	Jan. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Sep. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of business, net			$ 28,550	$ 0
Gain on disposition of business			$ 18,647	$ 0
Vital Fluids [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of business, net	$ 30,100
Post closing adjustment to cash purchase price	$ 200
Gain on disposition of business		$ 18,600
Gain on sale of business, net of tax		$ 11,800