Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions	3 Months Ended
Mar. 31, 2022 USD ($) Segment	Mar. 31, 2021
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue specific to customer from net revenue	7.00%	10.00%
ASC 606 [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of reporting segment \| Segment	2
Deferred revenue \| $	$ 0.4
ASC 606 [Member] \| Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of service revenue that is recognized over a period of time against total revenue	1.00%

Percentage of revenue specific to customer from net revenues.

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Percentage of service revenue that is recognized over a period of time against gross revenue.

+ References

No definition available.

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- Definition

Summary of significant accounting policies.

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130532-203044

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

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