Segment and Geographical Information - Schedule of net revenue and assets by segment (Details) - USD ($) $ in Millions		3 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2015
Segment and Geographical Information
Net revenue	[1]	$ 351.7	$ 401.5
Total assets assigned		1,842.8		$ 1,808.1
Property, plant, and equipment, net		158.0		158.3
United States
Segment and Geographical Information
Net revenue		198.9	216.6
Property, plant, and equipment, net		94.1		95.7
International
Segment and Geographical Information
Net revenue		152.8	184.9
Property, plant, and equipment, net		63.9		62.6
Operating segments
Segment and Geographical Information
Net revenue		351.7	401.5
Corporate
Segment and Geographical Information
Adjusted EBITDA		(7.0)	(7.3)
Total assets assigned		46.9		45.9
Process Equipment Group
Segment and Geographical Information
Net revenue		214.0	256.4
Process Equipment Group | Operating segments
Segment and Geographical Information
Adjusted EBITDA		33.0	38.1
Total assets assigned		1,578.8		1,537.3
Batesville
Segment and Geographical Information
Net revenue		137.7	145.1
Batesville | Operating segments
Segment and Geographical Information
Adjusted EBITDA		31.8	$ 32.6
Total assets assigned		$ 217.1		$ 224.9

[1] We attribute revenue to a geography based upon the location of the business unit that consummates the external sale.