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Goodwill and Other Identifiable Intangible Assets, Net (Tables)
3 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Amortizable Intangible Assets
Amortizable intangible assets were (in thousands):
 December 31, 2021September 30, 2021
Gross
carrying
amount
Accum.
amort.
NetGross
carrying
amount
Accum.
amort.
Net
Purchased and core technology$85,162 $(52,090)$33,072 $69,162 $(50,701)$18,461 
License agreements112 (112)— 112 (112)— 
Patents and trademarks39,559 (15,576)23,983 23,491 (14,978)8,513 
Customer relationships309,278 (44,039)265,239 130,278 (39,973)90,305 
Non-compete agreements600 (600)— 600 (600)— 
Order backlog1,000 (500)500 1,000 (250)750 
Total$435,711 $(112,917)$322,794 $224,643 $(106,614)$118,029 
Schedule of Estimated Future Amortization Expense Related to Intangible Assets
Estimated amortization expense related to intangible assets for the remainder of fiscal 2022 and the five succeeding fiscal years is (in thousands):
2022 (nine months)$20,717 
2023$24,996 
2024$24,282 
2025$20,825 
2026$20,593 
2027$18,582 
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,
 IoT
Products and Services
IoT
Solutions
Total
Balance on September 30, 2021$175,180 $50,342 $225,522 
Acquisition— 116,890 116,890 
Adjustment154 — 154 
Foreign currency translation adjustment(51)(17)(68)
Balance at December 31, 2021$175,283 $167,215 $342,498