Acquisitions (Schedule of Fair Values of Identifiable Intangible Assets Acquired and Estimated Useful Lives) (Details) - Arktura [Member] $ in Millions	Dec. 16, 2020 USD ($)
Business Acquisition [Line Items]
Fair Value at Acquisition Date	$ 33.0
Tradenames [Member]
Business Acquisition [Line Items]
Fair Value at Acquisition Date	$ 12.1
Non-amortizing intangible assets, Estimated Useful Life	Indefinite
Software [Member]
Business Acquisition [Line Items]
Fair Value at Acquisition Date	$ 9.1
Estimated Useful Life	7 years
Backlog [Member]
Business Acquisition [Line Items]
Fair Value at Acquisition Date	$ 5.5
Estimated Useful Life	1 year
Customer Relationships [Member]
Business Acquisition [Line Items]
Fair Value at Acquisition Date	$ 3.6
Estimated Useful Life	1 year
Non-compete Agreements [Member]
Business Acquisition [Line Items]
Fair Value at Acquisition Date	$ 2.1
Estimated Useful Life	5 years
Patents [Member]
Business Acquisition [Line Items]
Fair Value at Acquisition Date	$ 0.6
Patents [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Estimated Useful Life	13 years
Patents [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Estimated Useful Life	19 years

Indefinite-lived intangible assets useful life description.

No definition available.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472

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