Acquisitions & Disposals - Narrative (Details) $ / shares in Units, employee in Thousands, $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 10, 2025 USD ($) employee country $ / shares	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)
Business Combination [Line Items]
Impairment of operating lease				$ 0	$ 3,268
Charlotte Manufacturing Operations
Business Combination [Line Items]
Fixed asset and inventory related impairment costs			$ 3,567		3,567
Impairment of operating lease			3,268		3,268
Severance costs			1,093		1,093
Charlotte Manufacturing Operations | Cost of Sales
Business Combination [Line Items]
Restructuring cost			7,855		7,855
Charlotte Manufacturing Operations | Selling Expense
Business Combination [Line Items]
Restructuring cost			22		22
Charlotte Manufacturing Operations | General and Administrative Expense
Business Combination [Line Items]
Restructuring cost			$ 51		$ 51
Line of Credit | Revolving Credit Facility
Business Combination [Line Items]
Debt instrument, face amount	$ 500,000
JP Morgan Debt Agreement | Loans Payable
Business Combination [Line Items]
Debt instrument, face amount	3,050,000
Perpetual Convertible Voting Preferred Equity Instrument | Convertible Debt
Business Combination [Line Items]
Debt instrument, face amount	$ 800,000
Debt instrument, interest rate	7.00%
Conversion price (in dollars per share) | $ / shares	$ 37.68
Kito Crosby
Business Combination [Line Items]
Number of employees | employee	4
Number of countries in which entity operates | country	50
Revenues						$ 1,100,000
CD&R | Columbus McKinnon
Business Combination [Line Items]
Ownership interest	42.00%
Kito Crosby
Business Combination [Line Items]
Business combination, expected price of acquisition	$ 2,700,000
Business combination, acquisition related costs		$ 9,996		$ 18,099