Lines of Credit and Financing Arrangements (Credit Facility Ratios) (Details) - Revolving Credit Facility [Member] |
9 Months Ended |
|---|---|
Sep. 30, 2016 | |
| Maximum [Member] | |
| Line of Credit Facility [Line Items] | |
| Consolidated Indebtedness to Adjusted EBITDA Ratio no greater than | 3.5 |
| Minimum [Member] | |
| Line of Credit Facility [Line Items] | |
| Cash Flow to Net Interest Expense Ratio no less than | 3.0 |