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OTHER INCOME, NET (Tables)
12 Months Ended
Dec. 31, 2020
OTHER INCOME, NET  
Schedule of other income, net

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​

​

​

​

​

​

​

​

​

​

​

    

2020

    

2019

    

2018

    

Interest and dividend income

​

$

4,005

​

$

4,423

​

$

3,535

​

Gains (losses) on trading securities relating to deferred compensation plans

​

 

12,519

​

 

11,292

​

 

(1,103)

​

Interest expense

​

 

(164)

​

 

(220)

​

 

(181)

​

Foreign exchange gains (losses)

​

 

534

​

 

(533)

​

 

(659)

​

Capital gains (losses)

​

 

(6)

​

 

22

​

 

(11)

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Miscellaneous, net

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1,130

​

 

1,206

​

 

1,143

​

​

​

$

18,018

​

$

16,190

​

$

2,724

​