Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2012

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Assets and Liabilities measured on a recurring basis [Table Text Block]

The fair values of our financial instruments as of March 31, 2012 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	$	256,359	$	—		$	—	$	256,359
Restricted cash	—		22,072			—		22,072
Equity securities	20,964		—			—		20,964
Total Financial Assets	$	277,323	$	22,072		$	—	$	299,395
Financial Liabilities:
Total debt	—		853,682			—		853,682
Total Financial Liabilities	$	—	$	853,682		$	—	$	853,682
Derivatives:
Interest rate swap agreements	$	—	$	(5,202	)	$	—	$	(5,202	)

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	)