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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2017
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
PROPERTY, PLANT AND EQUIPMENT
Company's owned property, plant and equipment consists of the following at December 31:
 
2017
 
2016
Land
$
10,480

 
$
5,412

Building and improvements
140,261

 
134,398

Leasehold improvements
10,806

 
10,520

Machinery and equipment
534,991

 
511,461

 
696,538

 
661,791

Accumulated depreciation
(175,531
)
 
(138,372
)
 
521,007

 
523,419

Construction in process
66,390

 
76,055

Total
$
587,397

 
$
599,474


During 2017, the Company recorded impairment charges of $44,649 related to its New Orleans facility's property, plant and equipment assets. In 2016, the Company recorded impairment charges of $15,593 related to the Company's Emporia facility. Refer to Note 2 for further details.