Other Financial Statement Information (Tables)

9 Months Ended

Sep. 30, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Inventories - Net

Inventories – net

	September 30, 2018			December 31, 2017
Raw materials	$	39,860		$	42,712
Work-in-process		11,203			9,609
Finished Goods		39,557			33,780
		90,620			86,101
Excess of current cost over LIFO cost		(4,043	)		(2,991	)
Noncurrent portion of inventory		(4,175	)		(5,224	)
	$	82,402		$	77,886

Property, Plant and Equipment - Net

Major classes of Property, plant and equipment are stated at cost and were as follows:

	September 30, 2018			December 31, 2017
Land and improvements	$	12,631		$	13,141
Buildings and improvements		75,038			75,941
Machinery, equipment and aircraft		169,620			166,999
Construction in progress		4,393			5,124
		261,682			261,205
Less accumulated depreciation		(157,074	)		(152,607	)
	$	104,608		$	108,598