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Other Income (Expense)
 12 Months Ended
Dec. 31, 2023
Details of Expenses [Abstract]  
Other Income (Expense)
Note 8 – Details of Expenses

The caption “Other” on the accompanying consolidated statements of operations consists of the following:

 
  
Years ended December 31,
  
 
  
2023
    
2022
    
2021
  
 
                  
Foreign exchange gain (loss)
  
$
677
    
$
5,690
    
$
(2,692
)
Interest income
    
31,353
      
7,560
      
1,269
  
Other components of periodic pension expense
    
(8,730
)
    
(11,090
)
    
(13,206
)
Investment income (expense)
    
1,347
      
(6,812
)
    
(1,036
)
Other
    
616
      
(200
)
    
11
  
 
  
$
25,263
    
$
(4,852
)
  
$
(15,654
)

Impact of the COVID-19 Pandemic

The Company's operations were impacted by the "COVID-19" pandemic, particularly in 2020 and again in 2022 when operations in the People's Republic of China were impacted by government-mandated shut-downs.  The Company incurred incremental costs separable from normal operations that are directly related to the pandemic containment efforts, primarily wages paid to manufacturing employees during government-mandated shut-downs, additional wages and hardship allowances for working during lockdown periods, additional costs of cleaning and disinfecting facilities, costs of additional safety equipment for employees, and temporary housing for employees due to travel restrictions, which were partially offset by government subsidies.  Since 2021, certain costs directly attributable to the pandemic, such as additional costs of cleaning and disinfecting facility and costs of additional safety equipment for employees, are no longer incremental and are considered normal operating costs.  The net impact of the costs and subsidies are reported as "Cost of products sold" of $6,661 and "Selling, general, and administrative expenses" of $546 based on employee function on the consolidated statement of operations for the year ended December 31, 2022.