XML 64 R54.htm IDEA: XBRL DOCUMENT v3.7.0.1
Lines of Credit and Financing Arrangements (Credit Facility Ratios) (Details) - Revolving Credit Facility [Member]
3 Months Ended
Mar. 31, 2017
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