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Other Non-Operating Income
 3 Months Ended
Mar. 31, 2021
Other Nonoperating Income (Expense) [Abstract]  
Other Non-Operating Income OTHER NON-OPERATING INCOME
A summary of non-operating income is as follows:

Three Months Ended 
 March 31
(in thousands)
20212020
Gain on a cost method investment
$2,723 $— 
Gain on sale of businesses802 107 
Gain on sale of cost method investments94 518 
Foreign currency gain, net3 4,290 
Impairment of cost method investments
— (2,577)
Loss on sale of an equity affiliate
— (103)
Other gain, net
2,698 453 
Total Other Non-Operating Income
$6,320 $2,688 
In the first quarter of 2021, the Company recorded a gain of $2.7 million resulting from observable price changes in the fair value of an equity security accounted for under the cost method.
In the first quarter of 2020, the Company recorded impairment losses of $2.6 million to equity securities that are accounted for as cost method investments.