Description of Business and Summary of Significant Accounting Policies (Other) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Summary of Significant Accounting Policies [Line Items]
Unbilled receivables	$ 146.8	$ 125.4
Buildings and improvements | Minimum
Summary of Significant Accounting Policies [Line Items]
Useful life	10 years
Buildings and improvements | Maximum
Summary of Significant Accounting Policies [Line Items]
Useful life	40 years
Machinery and equipment | Minimum
Summary of Significant Accounting Policies [Line Items]
Useful life	2 years
Machinery and equipment | Maximum
Summary of Significant Accounting Policies [Line Items]
Useful life	7 years
Software and computer equipment | Minimum
Summary of Significant Accounting Policies [Line Items]
Useful life	3 years
Software and computer equipment | Maximum
Summary of Significant Accounting Policies [Line Items]
Useful life	5 years
Furniture, fixtures and other equipment | Minimum
Summary of Significant Accounting Policies [Line Items]
Useful life	4 years
Furniture, fixtures and other equipment | Maximum
Summary of Significant Accounting Policies [Line Items]
Useful life	10 years