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Long-Term Obligations (Tables) | 12 Months Ended
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Dec. 31, 2017
LOng-Term Obligations Disclosure [Abstract] |
Interest Margin and Commitment Fee [Table Text Block] | The applicable interest margins and the commitment fee with respect to the Credit Facility shall be based on the Total Leverage Ratio pursuant to the following pricing grid:
Level | Consolidated Total Leverage Ratio | Commitment Fee | LIBOR + | Base Rate +
I | Less than 1.00 to 1.00 | 0.15% | 1.25% | 0.25%
II | Greater than or equal to 1.00 to 1.00 but less than 2.00 to 1.00 | 0.20% | 1.50% | 0.50%
III | Greater than or equal to 2.00 to 1.00 but less than 2.50 to 1.00 | 0.25% | 1.75% | 0.75%
IV | Greater than or equal to 2.50 to 1.00 | 0.30% | 2.00% | 1.00%

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