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EMPLOYEE BENEFIT PLANS (Tables)
 6 Months Ended
Jun. 30, 2020
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
 
Six months ended
 
June 30,
 
June 30,
 
2020
 
2019
 
2020
 
2019
Service cost
$
242

 
$
205

 
$
528

 
$
430

Interest cost
876

 
1,106

 
1,738

 
2,229

Expected return on assets
(1,358
)
 
(1,188
)
 
(2,718
)
 
(2,377
)
Amortization of unrecognized prior service cost
—

 
57

 
—

 
113

Amortization of net unrecognized loss
696

 
765

 
1,392

 
1,530

      Net periodic pension cost
$
456

 
$
945

 
$
940

 
$
1,925