Debt And Interest Expense (Tables)

12 Months Ended

Dec. 31, 2012

Debt Disclosure [Abstract]

Proceeds upon issuance of the Convertible Debentures

Proceeds upon issuance of the Convertible Debentures were as follows (in thousands):

Principal value of Convertible Debentures	$	1,250,000
Less: Issuance costs	(25,777		)
Net proceeds, Convertible Debentures	$	1,224,223
Amounts recognized at issuance:
Convertible debentures, including contingent interest derivative	$	558,243
Additional paid-in capital	418,996
Long-term deferred tax liabilities	267,225
Other long-term assets	(11,328		)
Non-operating loss	(8,913		)
Net proceeds, Convertible Debentures	$	1,224,223

Schedule of Carrying Amounts of Liability and Equity Components

The table below presents the carrying amounts of the liability and equity components:

	As of December 31,
	2012			2011
	(In thousands)
Carrying amount of equity component (net of issuance costs of $14,449)	$	418,996		$	418,996
Principal amount of Convertible Debentures	$	1,250,000		$	1,250,000
Unamortized discount of liability component	(663,588		)	(671,539		)
Carrying amount of liability component	586,412			578,461
Contingent interest derivative	11,202			11,625
Convertible debentures, including contingent interest derivative	$	597,614		$	590,086

Schedule of Components of Interest Expense

The following table presents the components of the Company’s interest expense:

	Year Ended December 31,
	2012			2011			2010
	(In thousands)
Contractual interest on Convertible Debentures	$	40,625		$	40,625		$	40,625
Amortization of debt discount on the Convertible Debentures	7,986			7,355			6,775
Contingent interest to holders of Convertible Debentures	—			100,020			109,113
Interest capitalized to Property and equipment, net	(934		)	(980		)	(676		)
Credit facility and other interest expense	2,519			312			1,830
Total interest expense	$	50,196		$	147,332		$	157,667