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Debt Pricing Under Credit Revolving Agreement Table (Tables) | 6 Months Ended
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Jun. 30, 2019
Debt Instrument [Line Items] |
Schedule of Debt [Table Text Block] | Borrowings under the Credit Agreement bear an interest rate of LIBOR plus a credit spread and commitment fees charged on the unused amount under the Credit Agreement at various indebtedness-to-adjusted EBITDA levels as follows:
Pricing Under Credit Revolving Agreement (Basis Points)
Indebtedness-to-Adjusted EBITDA Ratio | Credit Spread Over LIBOR |  | Commitment Fee
> 3.5x but <= 4.0x | 200.0 |  |  | 40 |
> 3.0x but <= 3.5x | 187.5 |  |  | 35 |
> 2.0x but <= 3.0x | 175.0 |  |  | 30 |
> 1.0x but <= 2.0x | 162.5 |  |  | 25 |
<= 1.0x | 150.0 |  |  | 20 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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