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Goodwill
 9 Months Ended
Mar. 29, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill
Note 9. Goodwill
The following table presents changes in goodwill allocated to the Company’s reportable segments (in millions):
Network Enablement
Service Enablement
Optical Security
and Performance
Products
Total
Balance as of June 29, 2024$398.1 $12.6 $42.2 $452.9 
Acquisition129.7 — — $129.7 
Currency translation2.9 (0.1)— 2.8 
Balance as of March 29, 2025$530.7 $12.5 $42.2 $585.4 
The Company tests goodwill for impairment at the reporting unit level annually during the fourth quarter of each fiscal year, or more frequently if events or circumstances indicate that the asset may be impaired. In the fourth quarter of fiscal 2024, the Company performed a qualitative assessment of goodwill impairment and concluded that it was more likely than not that the fair value of each reporting unit exceeded its carrying amount and that no indication of impairment existed.
There were no events or changes in circumstances that triggered an impairment review during the three and nine months ended March 29, 2025.