Description of Business and Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Summary of Significant Accounting Policies [Line Items]
Contract with customer, liability	$ 51,600	$ 17,500
Contract with customer, liability, current	30,269	16,177
Contract with customer, liability, revenue recognized	$ 14,100	$ 16,400	$ 13,700
Minimum
Summary of Significant Accounting Policies [Line Items]
Remaining lease term	1 year
Revenue recognition period	14 days
Minimum | Buildings and improvements
Summary of Significant Accounting Policies [Line Items]
Useful life	10 years
Minimum | Machinery and equipment
Summary of Significant Accounting Policies [Line Items]
Useful life	2 years
Minimum | Software and computer equipment
Summary of Significant Accounting Policies [Line Items]
Useful life	3 years
Minimum | Furniture, fixtures and other equipment
Summary of Significant Accounting Policies [Line Items]
Useful life	4 years
Maximum
Summary of Significant Accounting Policies [Line Items]
Remaining lease term	85 years
Revenue recognition period	21 days
Maximum | Buildings and improvements
Summary of Significant Accounting Policies [Line Items]
Useful life	40 years
Maximum | Machinery and equipment
Summary of Significant Accounting Policies [Line Items]
Useful life	7 years
Maximum | Software and computer equipment
Summary of Significant Accounting Policies [Line Items]
Useful life	5 years
Maximum | Furniture, fixtures and other equipment
Summary of Significant Accounting Policies [Line Items]
Useful life	10 years