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Goodwill and Intangible Assets (Tables)
9 Months Ended
Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill [Table Text Block]
CommunicationsResidentialInfrastructure SolutionsCommercial & IndustrialTotal
Goodwill at June 30, 2022$2,816 $51,370 $38,209 $— $92,395 
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Estimated Useful Lives (in Years)June 30, 2022
Gross Carrying AmountAccumulated AmortizationNet
Trademarks/trade names5-20$15,262 $(4,170)$11,092 
Technical library20400 (176)224 
Customer relationships6-1596,879 (32,888)63,991 
Non-competition arrangements540 (31)
Backlog and construction contracts14,957 (4,957)— 
Total intangible assets$117,538 $(42,222)$75,316 
Estimated Useful Lives (in Years)September 30, 2021
Gross Carrying AmountAccumulated AmortizationNet
Trademarks/trade names5-20$15,262 $(2,891)$12,371 
Technical library20400 (161)239 
Customer relationships6-1596,879 (24,021)72,858 
Non-competition arrangements540 (25)15 
Backlog and construction contracts14,957 (4,821)136 
Total intangible assets$117,538 $(31,919)$85,619