Long-Term Debt (Financial Debt Covenants) (Details) - 6 months ended Jun. 30, 2015 $ in Millions	USD ($)
Long-Term Debt [Abstract]
Leverage Ratio (Consolidated Indebtedness/Consolidated Adj. EBITDA), Requirement	3.50
Fixed Charge Coverage Ratio (Consolidated Free Cash Flow/Consolidated Fixed Charges), Requirement	1.50
Annual Operating Lease Commitment, Requirement	$ 50.0