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Long-Term Debt (Tables)
12 Months Ended
Dec. 31, 2011
Debt Instruments [Abstract]  
Components Of Long-term Debt
Long-term debt consisted of the following (in thousands):

 
December 31,
 
2011
 
2010
Revolving credit facility
$
—

 
$
—

7.25% senior unsecured notes
200,000

 
200,000

Long-term debt
$
200,000

 
$
200,000

Activity Under Revolving Credit Facility
The following table summarizes the activity under our revolving credit facility for the years ended December 31, 2011, 2010 and 2009:

 
Year Ended December 31,
 
2011
 
2010
 
2009
 
(in thousands)
Borrowings under revolving credit facility
$
—

 
$
287,700

 
$
529,125

Repayment of borrowings under revolving credit facility
$
—

 
$
287,700

 
$
573,225