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Other Financial Statement Information (Tables)
 12 Months Ended
Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]  
Inventories - Net

Inventories – net

 

 

 

December 31

 

 

 

2017

 

 

2016

 

Raw materials

 

$

42,712

 

 

$

37,535

 

Work-in-process

 

 

9,609

 

 

 

9,057

 

Finished products

 

 

33,780

 

 

 

35,629

 

 

 

 

86,101

 

 

 

82,221

 

Excess of current cost over LIFO cost

 

 

(2,991

)

 

 

(2,784

)

Noncurrent portion of inventory

 

 

(5,224

)

 

 

(4,953

)

 

 

$

77,886

 

 

$

74,484

 

 
Property, Plant and Equipment - Net

Major classes of property, plant and equipment are as follows:

 

 

 

December 31

 

 

 

2017

 

 

2016

 

Land and improvements

 

$

13,141

 

 

$

12,584

 

Buildings and improvements

 

 

75,941

 

 

 

72,662

 

Machinery, equipment and aircraft

 

 

166,999

 

 

 

158,078

 

Construction in progress

 

 

5,124

 

 

 

3,877

 

 

 

 

261,205

 

 

 

247,201

 

Less accumulated depreciation

 

 

(152,607

)

 

 

(142,097

)

 

 

$

108,598

 

 

$

105,104