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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Amount of additional cost recognized for award under share-based payment arrangement from occurrence of event accelerating recognition of cost.

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ACQUISITIONS AND DIVESTITURES - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended			9 Months Ended		12 Months Ended
	Apr. 30, 2024	Mar. 27, 2023	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024
Business Acquisition [Line Items]
Loss on sale of business			$ 0.0	$ 112.7		$ 4.3	$ 112.7
Share-based payment arrangement, accelerated cost							15.7
Altra Merger Agreement
Business Acquisition [Line Items]
Share price (in dollars per share)		$ 62.00
Purchase price		$ 5,134.6
Payment of altra transaction expenses			3.9	7.5		13.8	82.5
Share-based payment arrangement, accelerated cost					$ 15.7
Altra Merger Agreement \| Acquisition-related Costs
Business Acquisition [Line Items]
Revenues				7.5			98.2
Altra Merger Agreement \| Fair Value Adjustment to Inventory
Business Acquisition [Line Items]
Revenues				$ 8.8			$ 52.9
Held for sale \| Industrial Systems
Business Acquisition [Line Items]
Total purchase price	$ 446.6
Loss on sale of business	$ 92.0		$ 0.0			$ 4.3		$ 92.0