Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2011

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Assets and Liabilities measured on a recurring basis

The fair values of our financial instruments as of December 31, 2011 are presented in the following table:

	Fair Value Measurements Using
(in thousands)	Level 1		Level 2			Level 3		Fair Value
Financial Assets:
Cash and cash equivalents	$	259,266	$	—		$	—	$	259,266
Restricted cash	—		22,044			—		22,044
Equity securities	20,884		—			—		20,884
Total Financial Assets	$	280,150	$	22,044		$	—	$	302,194
Financial Liabilities:
Total debt	—		828,990			—		828,990
Total Financial Liabilities	$	—	$	828,990		$	—	$	828,990
Derivatives:
Interest rate swap agreements	$	—	$	(5,078	)	$	—	$	(5,078	)

The fair values of our financial instruments as of December 31, 2010 are presented in the following table:

	Fair Value Measurements Using
(in thousands)	Level 1		Level 2			Level 3		Fair Value
Financial Assets:
Cash and cash equivalents	$	426,212	$	—		$	—	$	426,212
Restricted cash	—		21,095			—		21,095
Debt securities	1,791		—			—		1,791
Equity securities	73,430		—			—		73,430
Total Financial Assets	$	501,433	$	21,095		$	—	$	522,528
Financial Liabilities:
Total debt	—		727,440			—		727,440
Total Financial Liabilities	$	—	$	727,440		$	—	$	727,440
Derivatives:
Interest rate swap agreements	$	—	$	5,156		$	—	$	5,156
Foreign currency forward purchase agreements, net	$	—	$	(971	)	$	—	$	(971	)