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Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
2020
2019
Land
$
33,009
$
34,686
Building and improvements
135,595
130,462
Machinery and equipment
246,242
225,636
Construction in progress
8,407
8,050
Property, plant and
 
equipment, at cost
423,253
398,834
Less: accumulated depreciation
(219,370)
(185,365)
Total property,
 
plant and equipment, net
$
203,883
$
213,469