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Goodwill and Intangible Assets - Narrative (Details)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
reportingUnit
Sep. 30, 2023
USD ($)
Mar. 31, 2024
USD ($)
reportingUnit
Goodwill [Line Items]          
Number of reporting units | reportingUnit     3   3
Goodwill $ 717,982   $ 717,982   $ 710,334
Goodwill accumulated impairment loss $ 113,174   $ 113,174   113,174
Finite-lived intangible asset, useful life 16 years   16 years    
Indefinite-lived trademarks $ 46,841   $ 46,841   46,254
Amortization of Intangible Assets 7,547 $ 7,508 15,047 $ 14,385  
Estimated annual amortization expense next year 30,000   30,000    
Estimated annual amortization expense two years from current year 30,000   30,000    
Estimated annual amortization expense three years from current year 30,000   30,000    
Estimated annual amortization expense four years from current year 30,000   30,000    
Estimated annual amortization expense five years from current year $ 30,000   $ 30,000    
Trademark          
Goodwill [Line Items]          
Finite-lived intangible asset, useful life 13 years   13 years    
Customer relationships          
Goodwill [Line Items]          
Finite-lived intangible asset, useful life 17 years   17 years    
Acquired technology          
Goodwill [Line Items]          
Finite-lived intangible asset, useful life 15 years   15 years    
Other          
Goodwill [Line Items]          
Finite-lived intangible asset, useful life 6 years   6 years    
Duff Norton Group          
Goodwill [Line Items]          
Goodwill $ 9,699   $ 9,699   9,699
Rest of Products          
Goodwill [Line Items]          
Goodwill 310,300   310,300   304,760
Precision Conveyance          
Goodwill [Line Items]          
Goodwill $ 397,983   $ 397,983   $ 395,875