DEBT - Additional Information (Details) € in Millions, $ in Millions	Mar. 31, 2026 USD ($)	Mar. 31, 2026 EUR (€)	Feb. 27, 2026 USD ($)	Sep. 30, 2025 USD ($)
Debt Instrument [Line Items]
Long-term debt	$ 717.5			$ 919.4
Current portion of long-term debt	12.5			0.0
Long-term debt, net	701.2			914.8
Long-term debt	701.2			914.8
Credit Agreement
Debt Instrument [Line Items]
Long-term debt	717.5
United States Trade Accounts receivable credit facilities
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 200.0
Weighted average interest rate	4.87%	4.87%
International Trade Accounts Receivable Credit Facilities
Debt Instrument [Line Items]
Weighted average interest rate	2.97%	2.97%
International Trade Accounts Receivable Credit Facilities | European RPA
Debt Instrument [Line Items]
Financing receivable maximum amount under receivable purchase agreement	$ 115.1	€ 100.0
Term Loan | Secured Term Loan A-1 Facility
Debt Instrument [Line Items]
Amount of debt			$ 100.0
Term Loan | Secured Term Loan A-2 Facility
Debt Instrument [Line Items]
Amount of debt			400.0
2026 Credit Agreement - Revolving Credit Facility | Credit Agreement
Debt Instrument [Line Items]
Current portion of long-term debt	12.5
Long-term debt, net	$ 705.0
Weighted average interest rate	4.84%	4.84%
Actual interest rate	4.93%	4.93%
2026 Credit Agreement - Revolving Credit Facility | 2026 Credit Agreement - Term Loans
Debt Instrument [Line Items]
Long-term debt	$ 217.5			0.0
Debt issuance costs	2.6
2026 Credit Agreement - Revolving Credit Facility | U.S. accounts receivable credit facilities
Debt Instrument [Line Items]
Maximum borrowing capacity			800.0
Multicurrency Facility | U.S. accounts receivable credit facilities
Debt Instrument [Line Items]
Maximum borrowing capacity			725.0
U.S. Dollar Facility | U.S. accounts receivable credit facilities
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 75.0
Term Loan
Debt Instrument [Line Items]
Debt issuance costs	3.8
Accounts receivable credit facilities | United States Trade Accounts receivable credit facilities
Debt Instrument [Line Items]
Long-term line of credit	181.4			179.7
Foreign Line of Credit | International Trade Accounts Receivable Credit Facilities | European RPA
Debt Instrument [Line Items]
Long-term debt	$ 97.8			$ 95.3