(9) INTANGIBLE ASSETS AND GOODWILL

The Company’s intangible assets at December 31, 2025 and 2024 consisted of the following (in thousands):

  ​ ​ ​

Weighted

average

amortization

Net

period

  ​ ​ ​

  ​ ​ ​

Accumulated

  ​ ​ ​

carrying

December 31, 2025

  ​ ​ ​

(years)

Cost

  ​ ​ ​

amortization

  ​ ​ ​

value

Developed technology

7.84

$

340,380

$

281,000

$

59,380

Customer relationships

11.86

268,140

184,462

83,678

Trade names

3.88

5,000

5,000

Software licenses

 

3.00

 

5,748

 

5,462

 

286

 

$

619,268

$

475,924

$

143,344

  ​ ​ ​

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 December 31, 2025 was as follows (in thousands):

Years ending December 31, 

  ​ ​ ​

  ​

2026

$

39,143

2027

 

33,976

2028

 

23,400

2029

 

18,380

2030

7,723

Thereafter

20,722

$

143,344

Goodwill is recorded when the consideration for an acquisition exceeds the fair value of net tangible and identifiable intangible assets acquired. For the purpose of testing goodwill for impairment, all goodwill is assigned to a reporting unit, which may be either an operating segment or a portion of an operating segment. The Company’s reporting units are its two operating segments, Cloud and Edge and IP Optical Networks. Testing for impairment of goodwill is completed annually as of October 1st. The Company’s IP Optical Networks operating segment, with $76.0 million of associated goodwill, had a negative carrying value and a positive fair value as of October 1st for both 2025 and 2024.

Upon completion of the 2025 and 2024 annual tests for goodwill impairment, the Company determined that there was no impairment of goodwill in either of its reporting units. There was no change in the carrying value of the Company’s goodwill in the years ended December 31, 2025 and 2024.

The components of goodwill at December 31, 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

Historical Timeline

Fiscal YearFiled
2025Feb 26, 2026Showing above
2024Feb 27, 2025
2023Feb 28, 2024
2022Mar 31, 2023
2021Mar 11, 2022
2020Feb 26, 2021
2019Feb 28, 2020
2018Mar 4, 2019
2017Mar 8, 2018

About Goodwill & Intangibles Disclosures

Goodwill and intangible asset disclosures reveal the premium paid in acquisitions and how management assesses whether that premium retains its value. Since goodwill is no longer amortized under US GAAP, the annual impairment test is the only mechanism that adjusts carrying values downward — making the assumptions behind that test critically important for investors.

Key signals: a history of goodwill impairments suggests management consistently overpays for acquisitions. Watch the gap between reporting unit fair value and carrying amount — when fair value exceeds carrying amount by less than 10-20%, a small decline in business performance could trigger a write-down. For finite-lived intangibles, examine useful life assumptions across customer relationships, technology, and trade names; aggressive estimates inflate near-term earnings. Compare total intangibles-to-total-assets ratios against peers to assess acquisition dependency. Rising goodwill as a percentage of equity can signal balance sheet fragility.