Revenue Recognition Revenue by End Market (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net revenue	$ 728.4	$ 692.5
Plastics
Disaggregation of Revenue [Line Items]
Net revenue	235.0	194.7
Automotive
Disaggregation of Revenue [Line Items]
Net revenue	49.6	36.5
Chemicals
Disaggregation of Revenue [Line Items]
Net revenue	24.2	19.1
Consumer goods
Disaggregation of Revenue [Line Items]
Net revenue	39.7	39.0
Food and pharmaceuticals
Disaggregation of Revenue [Line Items]
Net revenue	21.8	22.8
Custom molders
Disaggregation of Revenue [Line Items]
Net revenue	38.3	38.9
Construction
Disaggregation of Revenue [Line Items]
Net revenue	35.2	31.7
Packaging
Disaggregation of Revenue [Line Items]
Net revenue	24.6	20.4
Minerals and mining
Disaggregation of Revenue [Line Items]
Net revenue	12.1	11.9
Electronics
Disaggregation of Revenue [Line Items]
Net revenue	14.3	18.4
Medical
Disaggregation of Revenue [Line Items]
Net revenue	20.0	21.2
Death care
Disaggregation of Revenue [Line Items]
Net revenue	162.5	164.8
Other industrial
Disaggregation of Revenue [Line Items]
Net revenue	51.1	73.1
Advanced Process Solutions
Disaggregation of Revenue [Line Items]
Net revenue	317.1	290.8
Advanced Process Solutions | Plastics
Disaggregation of Revenue [Line Items]
Net revenue	235.0	194.7
Advanced Process Solutions | Automotive
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Advanced Process Solutions | Chemicals
Disaggregation of Revenue [Line Items]
Net revenue	24.2	19.1
Advanced Process Solutions | Consumer goods
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Advanced Process Solutions | Food and pharmaceuticals
Disaggregation of Revenue [Line Items]
Net revenue	21.8	22.8
Advanced Process Solutions | Custom molders
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Advanced Process Solutions | Construction
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Advanced Process Solutions | Packaging
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Advanced Process Solutions | Minerals and mining
Disaggregation of Revenue [Line Items]
Net revenue	12.1	11.9
Advanced Process Solutions | Electronics
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Advanced Process Solutions | Medical
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Advanced Process Solutions | Death care
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Advanced Process Solutions | Other industrial
Disaggregation of Revenue [Line Items]
Net revenue	24.0	42.3
Molding Technology Solutions
Disaggregation of Revenue [Line Items]
Net revenue	248.8	236.9
Molding Technology Solutions | Plastics
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Molding Technology Solutions | Automotive
Disaggregation of Revenue [Line Items]
Net revenue	49.6	36.5
Molding Technology Solutions | Chemicals
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Molding Technology Solutions | Consumer goods
Disaggregation of Revenue [Line Items]
Net revenue	39.7	39.0
Molding Technology Solutions | Food and pharmaceuticals
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Molding Technology Solutions | Custom molders
Disaggregation of Revenue [Line Items]
Net revenue	38.3	38.9
Molding Technology Solutions | Construction
Disaggregation of Revenue [Line Items]
Net revenue	35.2	31.7
Molding Technology Solutions | Packaging
Disaggregation of Revenue [Line Items]
Net revenue	24.6	20.4
Molding Technology Solutions | Minerals and mining
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Molding Technology Solutions | Electronics
Disaggregation of Revenue [Line Items]
Net revenue	14.3	18.4
Molding Technology Solutions | Medical
Disaggregation of Revenue [Line Items]
Net revenue	20.0	21.2
Molding Technology Solutions | Death care
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Molding Technology Solutions | Other industrial
Disaggregation of Revenue [Line Items]
Net revenue	27.1	30.8
Batesville
Disaggregation of Revenue [Line Items]
Net revenue	162.5	164.8
Batesville | Plastics
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Automotive
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Chemicals
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Consumer goods
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Food and pharmaceuticals
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Custom molders
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Construction
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Packaging
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Minerals and mining
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Electronics
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Medical
Disaggregation of Revenue [Line Items]
Net revenue	0.0	0.0
Batesville | Death care
Disaggregation of Revenue [Line Items]
Net revenue	162.5	164.8
Batesville | Other industrial
Disaggregation of Revenue [Line Items]
Net revenue	$ 0.0	$ 0.0