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Goodwill and Acquired Intangible Assets (Tables)
 6 Months Ended
Jul. 02, 2023
Changes in Carrying Amount of Goodwill by Segment
The changes in the carrying amount of goodwill by reportable segments for the six months ended July 2, 2023, were as follows:

 
 
  
Robotics
 
  
Wireless
Test
 
 
Semiconductor
Test
 
 
System Test
 
 
Total
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
(in thousands)
 
Balance at December 31, 2022
                                          
Goodwill
    $ 383,166      $ 361,819     $ 262,077     $ 158,699     $ 1,165,761  
Accumulated impairment losses
      —          (353,843 )      (260,540 )      (148,183 )      (762,566 ) 
    
 
 
     
 
 
    
 
 
    
 
 
    
 
 
  
Total Goodwill
      383,166        7,976       1,537       10,516       403,195  
    
 
 
     
 
 
    
 
 
    
 
 
    
 
 
  
Foreign currency translation adjustment
      8,857        —         58       —         8,915  
    
 
 
     
 
 
    
 
 
    
 
 
    
 
 
  
Balance at July 2, 2023
                                          
Goodwill
      392,023        361,819       262,135       158,699       1,174,676  
Accumulated impairment losses
      —          (353,843 )      (260,540 )      (148,183 )      (762,566 ) 
    
 
 
     
 
 
    
 
 
    
 
 
    
 
 
  
Total Goodwill
    $ 392,023      $ 7,976     $ 1,595     $ 10,516     $ 412,110  
    
 
 
     
 
 
    
 
 
    
 
 
    
 
 
  
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 July 2, 2023
         
Developed technology
    $ 267,708      $ (237,078 )     $ (5,444 )     $ 25,186  
Customer relationships
      52,109        (46,699 )       200        5,610  
Tradenames and trademarks
      59,007        (43,904 )       (1,288 )       13,815  
    
 
 
     
 
 
     
 
 
     
 
 
  
Total intangible assets
    $ 378,824      $ (327,681 )     $ (6,532 )     $ 44,611  
    
 
 
     
 
 
     
 
 
     
 
 
  
Balance, December 31, 2022
                                    
Developed technology
    $ 270,967      $ (234,208 )     $ (5,935 )     $ 30,824  
Customer relationships
      57,739        (51,186 )       172        6,725  
Tradenames and trademarks
      59,387        (41,930 )       (1,528 )       15,929  
    
 
 
     
 
 
     
 
 
     
 
 
  
Total intangible assets
    $ 388,093      $ (327,324 )     $ (7,291 )     $ 53,478  
    
 
 
     
 
 
     
 
 
     
 
 
  
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)
  
2023
    $ 9,443  
2024
      18,834  
2025
      11,352  
2026
      2,379  
2027
      1,162  
Thereafter
      1,441