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Goodwill and other Identifiable Intangible Assets (Tables)
 12 Months Ended
Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Amortizable Identifiable Intangible Assets
Amortizable identifiable intangible assets, net as of September 30, 2024 and 2023 were comprised of the following (in thousands):
 September 30, 2024September 30, 2023
Gross
carrying
amount		Accum.
amort.		NetGross
carrying
amount		Accum.
amort.		Net
Purchased and core technology$85,041 $(63,654)$21,387 $85,032 $(59,833)$25,199 
License agreements112 (112)— 112 (112)— 
Patents and trademarks40,335 (22,047)18,288 39,957 (19,888)20,069 
Customer relationships309,223 (95,989)213,234 309,196 (77,380)231,816 
Non-compete agreements600 (600)— 600 (600)— 
Order backlog1,000 (1,000)— 1,000 (1,000)— 
Total$436,311 $(183,402)$252,909 $435,897 $(158,813)$277,084 
Schedule of Amortization Expense
Amortization expense for fiscal years 2024, 2023 and 2022 was as follows (in thousands):
Fiscal yearTotal
2024$24,553 
2023$25,226 
2022$27,195 
Schedule of Estimated Future Amortization Expense Related to Identifiable Intangible Assets
Estimated amortization expense for the next five fiscal years is as follows (in thousands):
Fiscal yearTotal
2025$21,811 
2026$21,579 
2027$21,579 
2028$20,410 
2029$18,355 
Schedule of Changes in Carrying Amount of Goodwill
The changes in the carrying amount of goodwill by reportable segments are (in thousands):
 IoT
Products & Services		IoT
Solutions		Total
Balance on September 30, 2022$172,931 $167,546 $340,477 
Foreign currency translation adjustment1,026 90 1,116 
Balance on September 30, 2023$173,957 $167,636 $341,593 
Foreign currency translation adjustment1,136 45 1,181 
Balance on September 30, 2024$175,093 $167,681 $342,774