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Commitment and Contingencies: Legal Proceedings - Narrative (Details)	Oct. 31, 2019 civil_complaint	Oct. 29, 2019 patent
Lupin Patent Infringement
Gain Contingencies [Line Items]
Number of patents allegedly infringed upon | patent		4
US District Court for the Northern District of Ohio
Gain Contingencies [Line Items]
Number of civil complaints filed against entity | civil_complaint	3

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Number of entity's patents that another entity has allegedly infringed.

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The total number of new claims filed pertaining to a loss contingency during the period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

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