Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Summary of Significant Accounting Policies [Abstract]

Estimated Useful Lives of Property, Plant and Equipment

Property, plant and equipment are recorded at historical cost and are depreciated using the straight-line method of depreciation over the estimated useful lives as follows:

	Estimated Life
Buildings	25 to 33-1/2 years
Building improvements	10 to 25 years
Machinery and equipment	5 to 12 years
Tools, dies and auxiliary equipment	3 to 8 years
Furniture and fixtures	3 to 12 years