Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2012

Debt

Schedule of long-term debt

Long-term debt consisted of the following at December 31 (in thousands):

	2012						2011
	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	$	298,471	$	329,418	$	300,000	$	298,237	$	327,750
8.50% Senior Notes due 2019, net of $2,337 unamortized discount		300,000		298,035		332,700		300,000		297,841		327,750
Total long-term debt	$	600,000	$	596,506	$	662,118	$	600,000	$	596,077	$	655,500

(1)

The fair value of the senior notes was based on observable market inputs, which are considered Level 2 in the fair value hierarchy.

Schedule of interest expenses net of amounts capitalized

Interest expense under financing arrangements, net of amounts capitalized, for the years ended December 31 totaled (in thousands):

	2012		2011		2010
Interest expense	$	36,327	$	33,866	$	46,938

Schedule of future maturities of long-term debt

Aggregate future maturities of long-term debt as of December 31, 2012 are as follows (in thousands):

2017	$	300,000
2018 and thereafter		300,000
Less discount on senior notes		(3,494	)
Total long-term debt	$	596,506

Senior Notes

Debt

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

Unamortized debt issuance costs included in noncurrent other assets totaled the following at December 31 (in thousands):

	2012		2011
Unamortized debt issuance costs	$	10,325	$	11,613

Senior Secured Revolving Credit Facility

Debt

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

Unamortized fees and costs were included in noncurrent other assets and totaled the following at December 31 (in thousands):

	2012		2011
Unamortized debt issuance costs	$	7,684	$	9,927