Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2012

Carrying Amount of Components of Long-term Debt

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

	September 30, 2012			December 31, 2011
Revolving credit facility	$	77,000		$	99,000
Senior notes due 2016, net of discount (principal amount of $300,000)	294,447			293,561
Senior notes due 2019	300,000			300,000
Convertible notes due 2012, net of discount (principal amount of $4,915)	4,884			4,746
	676,331			697,307
Less: Current portion of long-term debt	(4,884		)	(4,746		)
	$	671,447		$	692,561

4.50% Convertible Notes due 2012

Carrying Amount of Components of Long-term Debt

following table summarizes the carrying amount of the components of the Convertible Notes as of the dates presented: 

	September 30, 2012			December 31, 2011
Principal	$	4,915		$	4,915
Unamortized discount	(31		)	(169		)
Net carrying amount of liability component	$	4,884		$	4,746
Carrying amount of equity component	$	35,201		$	35,201

T

Components of Interest Expense Attributable to Convertible Notes

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

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2012		2011		2012		2011
Contractual interest expense	$	55	$	55	$	166	$	3,064
Accretion on original issue discount	47		43		138		2,308
Amortization of debt issuance costs	8		7		22		396
	$	110	$	105	$	326	$	5,768