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OTHER INCOME (EXPENSE) (Tables)
 12 Months Ended
Dec. 31, 2018
Other Income and Expenses [Abstract]  
Interest and Other Income [Table Text Block] Other income (expense) consisted of the following for the years set forth below (amounts in thousands):
 
2018
 
2017
 
2016
Equity investment income
$
3,993

 
$
3,615

 
$
2,977

Interest income
2,107

 
3,363

 
3,206

Building rental income
1,804

 
2,372

 
2,109

Investment gain related to investments for deferred compensation
687

 
2,725

 
190

Other income (expense)
10,607

 
(2,967
)
 
1,433

 
$
19,198

 
$
9,108

 
$
9,915