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Summary of Significant Accounting Policies, Depreciable Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Depreciable Assets
Impairments	$ 0.0	$ 0.0	$ 0.0
Machinery and Equipment and Office Equipment [Member] | Minimum
Depreciable Assets
Estimated useful life	3 years
Machinery and Equipment and Office Equipment [Member] | Maximum
Depreciable Assets
Estimated useful life	12 years
Building | Minimum
Depreciable Assets
Estimated useful life	20 years
Building | Maximum
Depreciable Assets
Estimated useful life	40 years

X

- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

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+ References

No definition available.

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+ References

No definition available.

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