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EMPLOYEE BENEFIT PLANS (Tables)
 9 Months Ended
Sep. 30, 2019
Retirement Benefits [Abstract]  
Schedule of Defined Benefit Plans Disclosures [Table Text Block]
The components of net periodic pension cost consisted of the following for the periods set forth below (amounts in thousands):
 
Three months ended
 
Nine months ended
 
September 30,
 
September 30,
 
2019
 
2018
 
2019
 
2018
Service cost
$
228

 
$
169

 
$
658

 
$
447

Interest cost
1,075

 
1,056

 
3,304

 
3,237

Expected return on assets
(1,186
)
 
(1,487
)
 
(3,563
)
 
(4,470
)
Amortization of unrecognized prior service cost
56

 
50

 
169

 
150

Amortization of net unrecognized loss
766

 
682

 
2,296

 
2,048

      Net periodic pension cost
$
939

 
$
470

 
$
2,864

 
$
1,412