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Goodwill and Acquired Intangible Assets (Tables)
 9 Months Ended
Sep. 28, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by reportable segments for the nine months ended September 28, 2025, were as follows:

 

 

 

Robotics

 

 

Semiconductor
Test

 

 

Product
Test

 

 

Total

 

 

 

(in thousands)

 

Balance at December 31, 2024

 

 

 

 

 

 

 

 

 

 

 

 

Goodwill

 

$

375,298

 

 

$

262,117

 

 

$

520,518

 

 

$

1,157,933

 

Accumulated impairment losses

 

 

—

 

 

 

(260,540

)

 

 

(502,026

)

 

 

(762,566

)

Total Goodwill

 

 

375,298

 

 

 

1,577

 

 

 

18,492

 

 

 

395,367

 

AET acquisition

 

 

—

 

 

 

1,257

 

 

 

—

 

 

 

1,257

 

Quantifi acquisition

 

 

—

 

 

 

—

 

 

 

83,068

 

 

 

83,068

 

Foreign currency translation adjustment

 

 

39,648

 

 

 

210

 

 

 

—

 

 

 

39,858

 

Balance at September 28, 2025

 

 

 

 

 

 

 

 

 

 

 

 

Goodwill

 

$

414,946

 

 

$

263,584

 

 

$

603,586

 

 

$

1,282,116

 

Accumulated impairment losses

 

 

—

 

 

 

(260,540

)

 

 

(502,026

)

 

 

(762,566

)

Total Goodwill

 

$

414,946

 

 

$

3,044

 

 

$

101,560

 

 

$

519,550

 
Schedule of Amortizable Intangible Assets

Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheet:

 

 

 

Gross
Carrying
Amount (1)

 

 

Accumulated
Amortization (1)

 

 

Foreign
Currency
Translation
Adjustment

 

 

Net
Carrying
Amount

 

 

 

(in thousands)

 

Balance at September 28, 2025

 

 

 

 

 

 

 

 

 

 

 

 

Developed technology

 

$

250,025

 

 

$

(208,314

)

 

$

60

 

 

$

41,771

 

Customer relationships

 

 

56,480

 

 

 

(51,335

)

 

 

204

 

 

 

5,349

 

Tradenames and trademarks

 

 

40,487

 

 

 

(31,853

)

 

 

(1,046

)

 

 

7,588

 

Total intangible assets

 

$

346,992

 

 

$

(291,502

)

 

$

(782

)

 

$

54,708

 

Balance at December 31, 2024

 

 

 

 

 

 

 

 

 

 

 

 

Developed technology

 

$

267,706

 

 

$

(255,448

)

 

$

(5,820

)

 

$

6,438

 

Customer relationships

 

 

52,109

 

 

 

(49,562

)

 

 

204

 

 

 

2,751

 

Tradenames and trademarks

 

 

59,007

 

 

 

(50,805

)

 

 

(1,464

)

 

 

6,738

 

Total intangible assets

 

$

378,822

 

 

$

(355,815

)

 

$

(7,080

)

 

$

15,927

 

 

 

(1)
In the nine months ended September 28, 2025, $81.8 million of amortizable intangible assets became fully amortized and have been eliminated from the gross carrying amount and accumulated amortization.
Schedule of Estimated Intangible Assets Amortization Expense

Estimated intangible asset amortization expense for each of the five succeeding fiscal years and thereafter is as follows:

 

Year

 

Amortization
Expense

 

 

 

(in thousands)

 

2025

 

$

3,409

 

2026

 

 

8,215

 

2027

 

 

6,999

 

2028

 

 

6,918

 

2029

 

 

5,557

 

Thereafter

 

 

23,610