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Other Income, net
 9 Months Ended
Sep. 30, 2021
Other Income and Expenses [Abstract]  
Other Income, net Other Income, net
Other income, net consists of the following:
Three months ended September 30,Nine months ended September 30,
2021202020212020
Gain on sale and mark-to-market of mutual funds$1,233 $1,965 $3,991 $7,131 
Interest and dividend income761 777 2,052 1,941 
Others, net(273)(257)(697)167 
Other income, net$1,721 $2,485 $5,346 $9,239