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Fair Value and Equity Investments (Tables)
12 Months Ended
Dec. 31, 2022
Fair Value and Equity Investments [Abstract]  
Assets (Liabilities) Measured at Fair Value on a Recurring Basis
The following tables present the fair value hierarchy for those assets and liabilities measured at fair value on a recurring basis (U.S. dollars in thousands):

 
Fair Value at December 31, 2022
 
   
Level 1
   
Level 2
   
Level 3
   
Total
 
Financial assets (liabilities):
                       
Cash equivalents and current investments
 
$
55,356
   
$
   
$
   
$
55,356
 
Derivative financial instruments asset
   
     
19,738
     
     
19,738
 
Life insurance contracts
   
     
     
40,055
     
40,055
 
Contingent consideration
   
     
     
(6,364
)
   
(6,364
)
Total
 
$
55,356
   
$
19,738
   

33,691
   
$
108,785
 

 
Fair Value at December 31, 2021
 
   
Level 1
   
Level 2
   
Level 3
   
Total
 
Financial assets (liabilities):
                       
Cash equivalents and current investments
 
$
66,477
   
$
   
$
   
$
66,477
 
Derivative financial instruments asset           6,590             6,590  
Life insurance contracts
   
     
     
49,851
     
49,851
 
Contingent consideration                 (10,341 )     (10,341 )
Total
 
$
66,477
   
$
6,590
   
$
39,510
   
$
112,577
 
Changes in Fair Value of Level 3 Life Insurance Contracts
The following table provides a summary of changes in fair value of the Company’s Level 3 life insurance contracts (U.S. dollars in thousands):


 
2022
   
2021
 
Beginning balance at January 1
 
$
49,851
   
$
45,453
 
Actual return on plan assets
   
(9,180
)
   
5,153
 
Purchases and issuances
   
     
6,261
 
Sales and settlements
   
(616
)
   
(7,016
)
Ending balance at December 31
 
$
40,055
   
$
49,851
 
Changes in Fair Value of Level 3 Contingent Consideration
The following table provides a summary of changes in fair value of the Company’s Level 3 contingent consideration (U.S. dollars in thousands):


 
2022
   
2021
 
Beginning balance at January 1
 
$
(10,341
)
 
$
(3,125
)
Additions from acquisitions
   
     
(8,702
)
Changes in fair value of contingent consideration
   
3,977
     
1,486
 
Ending balance at December 31
 
$
(6,364
)
 
$
(10,341
)