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Debt And Credit Arrangements Scheduled Annual Maturities (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Debt Instrument [Line Items]      
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months $ 7,030    
Long-term Debt, Maturities, Repayments of Principal in Year Two 6,563    
Long-term Debt, Maturities, Repayments of Principal in Year Three 7,500    
Long-term Debt, Maturities, Repayments of Principal in Year Four 50,625    
Long-term Debt, Maturities, Repayments of Principal in Year Five 250,000    
Long Term Debt Maturities Total Repayments Due 321,718    
Interest Paid $ 7,233 $ 6,604 $ 16,608