XML 22 R11.htm IDEA: XBRL DOCUMENT
v3.25.3

INTANGIBLE ASSETS AND GOODWILL | 9 Months Ended
--- | ---
Sep. 30, 2025
INTANGIBLE ASSETS AND GOODWILL |
INTANGIBLE ASSETS AND GOODWILL | (4) INTANGIBLE ASSETS AND GOODWILL The Company’s intangible assets at September 30, 2025 and December 31, 2024 consisted of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Weighted | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | average | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | amortization | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Net
​ | ​ | period |  | ​ | ​ |  | Accumulated |  | carrying
September 30, 2025 |  | (years) | ​ | Cost |  | amortization |  | value
Developed technology | ​ | 7.84 | ​ | $ | 340,380 | ​ | $ | 276,492 | ​ | $ | 63,888
Customer relationships | ​ | 11.86 | ​ | ​ | 268,140 | ​ | ​ | 178,676 | ​ | ​ | 89,464
Trade names | ​ | 3.88 | ​ | ​ | 5,000 | ​ | ​ | 5,000 | ​ | ​ | —
Software licenses |  | 3.00 |  | ​ | 5,748 |  | ​ | 5,348 |  | ​ | 400
​ |  | ​ | ​ | $ | 619,268 | ​ | $ | 465,516 | ​ | $ | 153,752
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Weighted | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | average | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | amortization | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Net
​ | ​ | period |  | ​ | ​ |  | Accumulated |  | carrying
December 31, 2024 |  | (years) | ​ | Cost |  | amortization |  | value
Developed technology | ​ | 7.84 | ​ | $ | 340,380 | ​ | $ | 262,085 | ​ | $ | 78,295
Customer relationships | ​ | 11.86 | ​ | ​ | 268,140 | ​ | ​ | 160,635 | ​ | ​ | 107,505
Trade names | ​ | 3.88 | ​ | ​ | 5,000 | ​ | ​ | 4,978 | ​ | ​ | 22
Software licenses |  | 3.00 |  | ​ | 5,748 |  | ​ | 4,033 |  | ​ | 1,715
​ |  | ​ | ​ | $ | 619,268 | ​ | $ | 431,731 | ​ | $ | 187,537
​ ​ Estimated future amortization expense for the Company’s intangible assets at September 30, 2025 was as follows (in thousands):
​ | ​ | ​ | ​
Years ending December 31, |  |  | ​
Remainder of 2025 | ​ | $ | 10,407
2026 | ​ |  | 39,143
2027 | ​ |  | 33,979
2028 | ​ |  | 23,400
2029 | ​ |  | 18,379
2030 | ​ | ​ | 7,722
Thereafter | ​ | ​ | 20,722
​ | ​ | $ | 153,752
​ There were no changes to the carrying value of the Company’s goodwill in the nine months ended September 30, 2025 and 2024. The components of goodwill at both September 30, 2025 and 2024 were as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Cloud and |  | IP Optical |  | ​ | ​
​ | ​ | Edge | ​ | Networks | ​ | Total
Goodwill | ​ | $ | 392,302 | ​ | $ | 191,996 | ​ | $ | 584,298
Accumulated impairment losses | ​ |  | (167,406) | ​ |  | (116,000) | ​ |  | (283,406)
​ | ​ | $ | 224,896 | ​ | $ | 75,996 | ​ | $ | 300,892
​

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-20/tableOfContent + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration