v3.25.1
Goodwill and Intangible Assets Intangibles (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Sep. 30, 2024
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross $ 111,017 $ 107,767
Finite-Lived Intangible Assets, Accumulated Amortization (68,936) (61,877)
Intangible Assets, Net (Excluding Goodwill) 42,081 45,890
Trademarks and Trade Names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 15,121 13,821
Finite-Lived Intangible Assets, Accumulated Amortization (7,719) (6,964)
Intangible Assets, Net (Excluding Goodwill) $ 7,402 $ 6,857
Trademarks and Trade Names [Member] | Minimum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 5 years 5 years
Trademarks and Trade Names [Member] | Maximum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 20 years 20 years
Technical Library    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 20 years 20 years
Finite-Lived Intangible Assets, Gross $ 400 $ 400
Finite-Lived Intangible Assets, Accumulated Amortization (231) (221)
Intangible Assets, Net (Excluding Goodwill) 169 179
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 94,746 92,796
Finite-Lived Intangible Assets, Accumulated Amortization (60,545) (54,478)
Intangible Assets, Net (Excluding Goodwill) $ 34,201 $ 38,318
Customer Relationships [Member] | Minimum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 1 year 1 year
Customer Relationships [Member] | Maximum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 15 years 15 years
Backlog [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 1 year  
Finite-Lived Intangible Assets, Gross $ 750 $ 750
Finite-Lived Intangible Assets, Accumulated Amortization (441) (214)
Intangible Assets, Net (Excluding Goodwill) $ 309 $ 536
Backlog [Member] | Minimum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life   1 year
Backlog [Member] | Maximum [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 2 years 2 years