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Long-Term Debt (Tables)
6 Months Ended
Jun. 30, 2012
Debt Disclosure [Abstract]  
Long-term debt
 
June 30, 2012
 
December 31, 2011
7.125% senior notes due 2017
$
250,000

 
$
250,000

8.875% senior notes due 2020 (1)
222,007

 
221,873

7.875% senior notes due 2022 (1)
247,970

 
247,902

Bank Borrowings

 

Long-Term Debt (1)
$
719,977

 
$
719,775

(1) Amounts are shown net of debt discount