Annual report pursuant to Section 13 and 15(d)

Property, Plant, and Equipment, Net (Schedule of Property, Plant, and Equipment, Net) (Details)

v3.20.4
Property, Plant, and Equipment, Net (Schedule of Property, Plant, and Equipment, Net) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Abstract]      
Depreciation $ 60,900 $ 59,800 $ 58,200
Tangible Asset Impairment Charges $ 5,000 $ 400 $ 2,100