Basis of Presentation, Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Our “Inventories” line item in the consolidated statements of financial position consisted of the following:


	As of December 31,
(Dollars in thousands)	2021		2020
Raw materials	$	60,208	$	44,976
Work-in-process	29,078		25,291
Finished goods	44,098		32,093
Total inventories	$	133,384	$	102,360

Schedule of Property, Plant And Equipment

For financial reporting purposes, provisions for depreciation are calculated on a straight-line basis over the following estimated useful lives of the underlying assets:


Property, Plant and Equipment Classification			Estimated Useful Lives
Buildings and improvements			30-40 years
Machinery and equipment			5-15 years
Office equipment			3-10 years

Our “Property, plant and equipment, net” line item in the consolidated statements of financial position consisted of the following:


	As of December 31,
(Dollars in thousands)	2021		2020
Land and improvements	$	24,804	$	22,589
Buildings and improvements	163,920		155,669
Machinery and equipment	322,653		324,773
Office equipment	57,156		59,001
Property plant and equipment, gross	568,533		562,032
Accumulated depreciation	(367,850)		(365,844)
Property, plant and equipment, net	200,683		196,188
Equipment in process	126,284		76,190
Total property, plant and equipment, net	$	326,967	$	272,378