Concentration Risk (Detail Textuals) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Risks and Uncertainties [Abstract] | |||
| Expenses incurred on hotel and restaurant services | $ 152.3 | $ 137.2 | $ 122.4 |
| X | ||||||||||
- Definition Represents the amount related to food and labor cost. No definition available.
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| X | ||||||||||
- References No definition available.
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