Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Schedule Of Long-Term Debt) (Details)

v3.3.0.814
Long-Term Debt (Schedule Of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Jan. 27, 2015
Dec. 31, 2014
Sep. 30, 2014
Debt Instrument [Line Items]        
Total long-term debt $ 700,000   $ 228,126 $ 231,250
Less: current maturities (18,750)   (17,188) (15,625)
Long-term debt, less current maturities 681,250   210,938 215,625
Revolving credit facility [Member]        
Debt Instrument [Line Items]        
Secured credit 200,000      
Credit Agreement Terminated January 27, 2015 [Member]        
Debt Instrument [Line Items]        
Total long-term debt   $ 228,100    
Credit Agreement Terminated January 27, 2015 [Member] | Long-term Debt [Member]        
Debt Instrument [Line Items]        
Secured credit 0   228,126  
Credit Agreement Terminated January 27, 2015 [Member] | Revolving credit facility [Member]        
Debt Instrument [Line Items]        
Secured credit 0   0 0
Credit Agreement 1.25B [Member]        
Debt Instrument [Line Items]        
Secured credit   1,250,000    
Credit Agreement 1.25B [Member] | Long-term Debt [Member]        
Debt Instrument [Line Items]        
Secured credit 500,000 $ 500,000 0 0
Credit Agreement 1.25B [Member] | Revolving credit facility [Member]        
Debt Instrument [Line Items]        
Secured credit $ 200,000   $ 0 $ 0