Annual report pursuant to Section 13 and 15(d)

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

v2.4.0.6
Long-Term Debt (Schedule Of Long-Term Debt) (Details) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Jun. 10, 2011
8.5% Senior Notes Due June 2019 [Member]
Dec. 31, 2011
8.5% Senior Notes Due June 2019 [Member]
Dec. 31, 2010
8.25% Senior Notes Due June 2014 [Member]
Dec. 31, 2011
Revolving Bank Credit Facility Due May 2015 [Member]
Dec. 31, 2010
Revolving Bank Credit Facility Due May 2015 [Member]
Debt Instrument [Line Items]              
Total long-term debt $ 717,000 $ 450,000 $ 600,000 $ 600,000 $ 450,000 $ 117,000   
Current maturities of long-term debt                
Long-term debt, less current maturities $ 717,000 $ 450,000          
Senior notes interest rate     8.50% 8.50% 8.25%    
Senior notes maturity date     Jun. 15, 2019 Jun. 01, 2019 Jun. 01, 2014 May 01, 2015