Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2011

Debt

Schedule of long-term debt

	2011						2010
	Principal		Carrying Value		Fair Value(1)		Principal		Carrying Value		Fair Value
8.25% Senior Notes due 2017, net of $1,979 unamortized discount	$	300,000	$	298,237	$	327,750	$	300,000	$	298,021	$	323,250
8.50% Senior Notes due 2019, net of $2,337 unamortized discount		300,000		297,841		327,750		300,000		297,663		327,000
Total long-term debt	$	600,000	$	596,077	$	655,500	$	600,000	$	595,684	$	650,250

(1)

The fair value of the senior notes was based on observable market inputs.

Schedule of interest expenses net of amounts capitalized

	2011		2010		2009
Interest expense	$	33,866	$	46,938	$	5,992

Schedule of future maturities of long-term debt

2017 and thereafter	$	600,000
Less discount on senior notes		(3,923	)
Total long term debt	$	596,077

Senior Notes

Debt

Summary of unamortized debt issuance costs incurred in connection with the issuance of the debt instrument

	2011		2010
Unamortized debt issuance costs	$	11,613	$	12,793

Senior Secured Revolving Credit Facility

Debt

Summary of unamortized debt issuance costs incurred in connection with the issuance of the debt instrument

	2011		2010
Unamortized debt issuance costs	$	9,927	$	11,740