Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Offsetting Assets

	December 31, 2012
Description	Gross Amounts Recognized			Gross Amounts Offset in the Consolidated Balance Sheets			Net Amounts Presented in the Consolidated Balance Sheets
	(In thousands)
Assets:
Derivative instruments	$	36,452		$	(7,291	)	$	29,161
Liabilities:
Derivative instruments	(7,291		)	7,291			—
Total	$	29,161		$	—		$	29,161

The following tables present the Company’s assets and liabilities measured at fair value on a recurring basis as of September 30, 2013 and December 31, 2012. All items included in the tables below are Level 2 inputs within the fair value hierarchy:

	September 30, 2013
Description	Gross Amounts Recognized			Gross Amounts Offset in the Consolidated Balance Sheets			Net Amounts Presented in the Consolidated Balance Sheets
	(In thousands)
Assets:
Derivative instruments	$	17,679		$	(10,269	)	$	7,410
Liabilities:
Derivative instruments	(13,793		)	10,269			(3,524		)
Total	$	3,886		$	—		$	3,886

Schedule of Fair Value of Debt Instruments

The following table presents the carrying amounts and fair values of the Company’s senior notes and convertible senior notes, based on quoted market prices, as of September 30, 2013 and December 31, 2012.

	September 30, 2013				December 31, 2012
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(In thousands)
8.625% Senior Notes	$	595,649	$	647,768	$	595,151	$	645,000
7.50% Senior Notes	300,000		316,500		300,000		308,250
4.375% Convertible Senior Notes	4,425		4,436		72,657		73,842