Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2011

Long-Term Debt [Abstract]

Components Of Long-Term Debt

	September 30			December 31
	2011			2010
	(In thousands)
Senior Convertible Debentures due 2027, 2.75%
Principal amount of debt component	$	325,000		$	325,000
Less: Unamortized debt discount		(71,849	)		(79,055	)
Carrying amount of debt component		253,151			245,945
Title XI Bonds due 2025, 7.71%		53,460			57,420
Total long-term debt		306,611			303,365
Less: Current maturities		3,960			3,960
Long-term debt less current maturities	$	302,651		$	299,405

Equity Component Of Senior Convertible Debentures

	September 30		December 31
	2011		2010
	(In thousands)
Debt discount on issuance	$	107,261	$	107,261
Less: Issuance costs		2,249		2,249
Deferred income tax		36,772		36,772
Carrying amount of equity component	$	68,240	$	68,240

Interest Expense Of Senior Convertible Debentures

	Three Months Ended						Nine Months Ended
	September 30						September 30
	2011			2010			2011			2010
	(In thousands)						(In thousands)
Contractual interest coupon, 2.75%	$	2,235		$	2,235		$	6,703		$	6,703
Amortization of debt discount		2,451			2,277			7,205			6,694
Total Debentures interest expense	$	4,686		$	4,512		$	13,908		$	13,397
Effective interest rate		7.5	%		7.5	%		7.5	%		7.5	%