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Commitment and Contingencies: Legal Proceedings - Narrative (Details)	Oct. 31, 2019 complaint
US District Court for the Northern District of Ohio
Loss Contingencies
Number of civil complaints filed against entity	3

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-4

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