Segment Information (Details) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Segment Reporting Information [Line Items] | ||
| Total consolidated revenue | 100.00% | 100.00% |
| Sales Revenue, Segment [Member] | U.K. [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Total consolidated revenue | 21.90% | 22.00% |
| Sales Revenue, Segment [Member] | Other Foreign Markets [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Total consolidated revenue | 21.30% | 19.50% |
| Sales Revenue, Segment [Member] | North America [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Total consolidated revenue | 56.80% | 58.50% |
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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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- 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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