Segment Information Concentration (Details)  | 
9 Months Ended | 12 Months Ended | |
|---|---|---|---|
Sep. 30, 2019  | 
Sep. 30, 2018  | 
Dec. 31, 2018  | 
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| Accounts Receivable [Member] | |||
| Concentration Risk [Line Items] | |||
| Concentration Risk, Percentage | 0.00% | 0.00% | 11.60% | 
| Revenue, Product and Service Benchmark [Member] | |||
| Concentration Risk [Line Items] | |||
| Concentration Risk, Percentage | 10.00% | 0.00% | 0.00% | 
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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. No definition available. 
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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