Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2024

Accounting Policies [Abstract]

Schedule of Cash and Cash Equivalents

The following table provides a reconciliation of cash and cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same amounts show in the Consolidated Statements of Cash Flows:

	September 30,
	2024		2023
Cash and cash equivalents	$	199.3	$	242.9
Short-term restricted cash included in other current assets	7.0		7.3
Long-term restricted cash included in other long-term assets	21.6		—
Total cash and cash equivalents and restricted cash shown in the Consolidated Statements of Cash Flows	$	227.9	$	250.2

Schedule of inventories

	September 30,
	2024		2023
Raw materials and components	$	247.0	$	285.2
Work in process	127.6		135.0
Finished goods	150.6		172.4
Total inventories	$	525.2	$	592.6

Schedule of carrying value of property, plant and equipment

	September 30, 2024				September 30, 2023
	Cost		Accumulated Depreciation		Cost		Accumulated Depreciation
Land and land improvements	$	28.6	$	(0.8)	$	31.1	$	(1.3)
Buildings and building equipment	143.0		(51.1)		144.5		(46.1)
Machinery and equipment	410.6		(213.7)		371.8		(179.3)
Total	$	582.2	$	(265.6)	$	547.4	$	(226.7)

Schedule of intangible assets and related amortization

	September 30, 2024				September 30, 2023
	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Finite-lived assets:
Customer relationships	$	1,316.9	$	(379.4)	$	1,290.2	$	(291.4)
Technology, including patents	192.3		(100.9)		192.3		(83.1)
Software	53.0		(35.3)		41.7		(31.7)
Trade names	52.5		(10.6)		41.9		(4.2)
	1,614.7		(526.2)		1,566.1		(410.4)
Indefinite-lived assets:
Trade names	197.4		—		221.4		—
Total	$	1,812.1	$	(526.2)	$	1,787.5	$	(410.4)

Changes in the carrying amount of goodwill

The following table summarizes the changes in the Company’s goodwill, by reportable operating segment, for the years ended September 30, 2024 and 2023:

	Advanced Process Solutions		Molding Technology Solutions		Total
Balance September 30, 2022	$	516.0	$	635.1	$	1,151.1
Acquisitions (1)	859.4		—		859.4
Acquisition measurement period adjustments	(38.9)		—		(38.9)
Foreign currency adjustments	58.4		(1.9)		56.5
Balance September 30, 2023	1,394.9		633.2		2,028.1
Impairment charges	—		(238.0)		(238.0)
Acquisition measurement period adjustments	(1.3)		—		(1.3)
Foreign currency adjustments	36.6		10.3		46.9
Balance September 30, 2024	$	1,430.2	$	405.5	$	1,835.7

(1)Goodwill associated with the acquisitions of LINXIS Group SAS (“Linxis”), the Peerless Food Equipment business (“Peerless”), and the Schenck Process Food and Performance Materials (“FPM”) business

Schedule of changes in accumulated other comprehensive income (loss) by component

	September 30,
	2024		2023
Currency translation	$	(55.4)	$	(107.1)
Pension and postretirement (net of taxes of $4.9 and $11.5)	(15.6)		(34.5)
Unrealized loss on derivative instruments (net of taxes of $(0.4) and $0.7)	(25.6)		(5.5)
Accumulated other comprehensive loss	$	(96.6)	$	(147.1)

Schedule of deferred purchase price receivable

The following roll forward summarizes the activity related to the DPP receivables:

	Year Ended September 30, 2024
Beginning DPP receivables balance	$	—
Non-cash additions to DPP receivables	32.3
Cash collections on DPP receivables	(25.6)
Ending DPP receivables balance	$	6.7