Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2011

Carrying Amount of Components of Convertible Notes

The following table summarizes our long-term debt as of the dates presented:

	As of December 31,
	2011			2010
Revolving credit facility	$	99,000		$	-
Senior notes due 2016, net of discount (principal amount of $300,000)		293,561			292,487
Senior notes due 2019		300,000			-
Convertible notes due 2012, net of discount (principal amount of $4,915 and $230,000)		4,746			214,049
		697,307			506,536
Less: Current portion of long-term debt		(4,746	)		-
	$	692,561		$	506,536

Maturities of Principal Amounts of Long-Term Debt

The following table sets forth the aggregate maturities of the principal amounts of our long-term debt for the next five years and thereafter:

Year	Amounts
2012	$	4,746
2013		-
2014		-
2015		-
2016		392,561
Thereafter		300,000
Total	$	697,307

4.50% Convertible Notes due 2012

Carrying Amount of Components of Convertible Notes

The following table summarizes the carrying amount of these components as of the dates presented:

	As of December 31,
	2011			2010
Principal	$	4,915		$	230,000
Unamortized discount		(169	)		(15,951	)
Net carrying amount of liability component	$	4,746		$	214,049
Carrying amount of equity component	$	35,201		$	36,850

Convertible Notes Tender Offer

The loss charged to earnings was determined as follows:

Cash paid to repurchase principal:
Allocated to liability component	$	231,331
Allocated to equity component		1,632
	$	232,963
Carrying value of liability component tendered:
Principal amount of Convertible Notes tendered	$	225,085
Pro rata share of original issue discount		(13,429	)
	$	211,656
Loss on extinguishment of debt:
Excess of liability component over carrying value	$	19,675
Write-off of pro rata share of debt issuance costs		2,147
Non-cash portion of loss on extinguishment		21,822
Transaction costs and fees paid		2,416
Pre-tax loss on extinguishment	$	24,238

Components of Interest Expense Attributable to Convertible Notes

The following table summarizes the amounts recognized as components of interest expense attributable to the Convertible Notes for the periods presented:

	Year Ended December 31,
	2011		2010		2009
Contractual interest expense	$	3,119	$	10,350	$	10,350
Accretion on original issue discount		2,353		7,371		6,782
Amortization of debt issuance costs		403		1,242		1,387
	$	5,875	$	18,963	$	18,519