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Goodwill and Other Identifiable Intangible Assets, Net (Tables)
 3 Months Ended
Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Amortizable Intangible Assets
Amortizable intangible assets were (in thousands):
 December 31, 2023September 30, 2023
Gross
carrying
amount		Accum.
amort.		NetGross
carrying
amount		Accum.
amort.		Net
Purchased and core technology$85,080 $(60,833)$24,247 $85,032 $(59,833)$25,199 
License agreements112 (112)— 112 (112)— 
Patents and trademarks40,035 (20,421)19,614 39,957 (19,888)20,069 
Customer relationships309,241 (82,181)227,060 309,196 (77,380)231,816 
Non-compete agreements600 (600)— 600 (600)— 
Order backlog1,000 (1,000)— 1,000 (1,000)— 
Total$436,068 $(165,147)$270,921 $435,897 $(158,813)$277,084 
Schedule of Estimated Future Amortization Expense Related to Intangible Assets
Estimated amortization expense related to intangible assets for the remainder of fiscal 2024 and the five succeeding fiscal years is (in thousands):
2024 (nine months)$19,058 
202521,781 
202621,549 
202720,593 
202820,411 
202918,355 
Schedule of Changes in Carrying Amount of Goodwill
The changes in the carrying amount of goodwill by reportable segments are (in thousands):
 Three months ended December 31, 2023
 IoT
Products & Services		IoT
Solutions		Total
Balance on September 30, 2023$173,957 $167,636 $341,593 
Foreign currency translation adjustment567 264 831 
Balance on December 31, 2023$174,524 $167,900 $342,424