Fair Value (Tables)

3 Months Ended

Mar. 31, 2012

Fair Value [Abstract]

Financial assets and liabilities recorded at fair value on a recurring basis

The following table sets forth, by level within the fair value hierarchy, the financial assets and liabilities recorded at fair value on a recurring basis as of March 31, 2012 and December 31, 2011 (in thousands):

		000000000		000000000		000000000		000000000
	March 31,
	2012		Level 1		Level 2		Level 3
Available-for-sale securities	$	34,354	$	34,354	$	—	$	—
Trading securities		35,944		35,944		—		—
Total assets	$	70,298	$	70,298	$	—	$	—
Fair value of interest rate swap agreements	$	237,739	$	—	$	237,739	$	—
Total liabilities	$	237,739	$	—	$	237,739	$	—
	December 31, 2011		Level 1		Level 2		Level 3
Available-for-sale securities	$	31,582	$	31,582	$	—	$	—
Trading securities		30,486		30,486		—		—
Total assets	$	62,068	$	62,068	$	—	$	—
Fair value of interest rate swap agreements	$	254,228	$	—	$	254,228	$	—
Total liabilities	$	254,228	$	—	$	254,228	$	—