Segment Information - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jan. 30, 2015	Sep. 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
Intersegment Eliminations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Intercompany revenue		$ 4,100		9,500
Industrial Filtration [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Intercompany revenue		$ 4,100		$ 9,500
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 sale of business, net of tax			$ 11,800