v3.26.1
Goodwill (Tables)
 12 Months Ended
Jun. 27, 2026
Intangible Asset, Goodwill and Other [Abstract]  
Schedule of Changes in Goodwill
The following table presents the changes in goodwill allocated to the Company’s reportable segments (in millions):
Network and Service
Enablement		Optical Security
and Performance
Products		Total
Balance as of June 29, 2024(1)
$410.7 $42.2 $452.9 
Acquisition(2)
129.7— 129.7 
Measurement period adjustment(2)
0.6 — 0.6 
Currency translation 12.5 — 12.5 
Balance as of June 28, 2025(3)
$553.5 $42.2 $595.7 
Acquisition(2)
111.3 — 111.3 
Measurement period adjustment(2)
0.2 0.2 
Currency translation (6.5)— (6.5)
Balance as of June 27, 2026(4)
$658.5 $42.2 $700.7 
(1) Gross goodwill balances for NSE and OSP were $985.2 million and $126.7 million, respectively, as of June 29, 2024. Accumulated impairment for NSE and OSP was $574.5 million and $84.5 million, respectively, as of June 29, 2024.
(2) Goodwill at acquisition date and adjustments. Refer to “Note 5. Acquisitions” for additional information.
(3) Gross goodwill balances for NSE and OSP were $1,128.0 million and $126.7 million, respectively, as of June 28, 2025. Accumulated impairment for NSE and OSP was $574.5 million and $84.5 million, respectively, as of June 28, 2025.
(4) Gross goodwill balances for NSE and OSP were $1,233.0 million and $126.7 million, respectively, as of June 27, 2026. Accumulated impairment for NSE and OSP was $574.5 million and $84.5 million, respectively, as of June 27, 2026.