Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2011

Fair Value of Financial Instruments [Abstract]

Estimated fair value of financial instruments

	December 31,
	2011				2010
	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Assets:
Cash and cash equivalents	$	129,865	$	129,865	$	299,169	$	299,169
Available-for-sale securities		31,582		31,582		31,570		31,570
Trading securities		30,486		30,486		35,092		35,092
Liabilities:
Credit Facility		5,979,383		5,780,877		5,999,337		5,882,124
8 7/ 8 % Senior Notes		1,777,617		1,842,322		2,784,331		2,923,548
8% Senior Notes		1,000,000		995,000		—		—
Other debt		41,143		41,143		36,122		36,122

Interest rate swaps

Swap #	Notional Amount (in 000’s)		Fixed Interest Rate			Termination Date		Fair Value of Liability (in 000’s)
1		100,000		3.8470	%		January 4, 2012		30
2		100,000		3.8510	%		January 4, 2012		30
3		100,000		3.8560	%		January 4, 2012		30
4		200,000		3.7260	%		January 8, 2012		152
5		200,000		3.5065	%		January 16, 2012		281
6		250,000		5.0185	%		May 30, 2012		4,509
7		150,000		5.0250	%		May 30, 2012		2,709
8		200,000		4.6845	%		September 11, 2012		5,574
9		100,000		3.3520	%		October 23, 2012		2,161
10		125,000		4.3745	%		November 23, 2012		4,104
11		75,000		4.3800	%		November 23, 2012		2,466
12		150,000		5.0200	%		November 30, 2012		5,900
13		200,000		2.2420	%		February 28, 2013		3,550
14		100,000		5.0230	%		May 30, 2013		5,952
15		300,000		5.2420	%		August 6, 2013		21,085
16		100,000		5.0380	%		August 30, 2013		6,967
17		50,000		3.5860	%		October 23, 2013		2,505
18		50,000		3.5240	%		October 23, 2013		2,451
19		100,000		5.0500	%		November 30, 2013		7,948
20		200,000		2.0700	%		December 19, 2013		5,080
21		100,000		5.2310	%		July 25, 2014		10,706
22		100,000		5.2310	%		July 25, 2014		10,707
23		200,000		5.1600	%		July 25, 2014		21,073
24		75,000		5.0405	%		July 25, 2014		7,685
25		125,000		5.0215	%		July 25, 2014		12,752
26		100,000		2.6210	%		July 25, 2014		4,436
27		100,000		3.1100	%		July 25, 2014		5,612
28		100,000		3.2580	%		July 25, 2014		5,968
29		200,000		2.6930	%		October 26, 2014		9,916
30		300,000		3.4470	%		August 8, 2016		27,728
31		200,000		3.4285	%		August 19, 2016		18,401
32		100,000		3.4010	%		August 19, 2016		9,099
33		200,000		3.5000	%		August 30, 2016		19,048
34		100,000		3.0050	%		November 30, 2016		7,613

Amount of pre-tax loss recognized in the consolidated balance sheets as a component of other comprehensive income

Derivatives in Cash Flow Hedging Relationships	Amount of Pre-Tax Loss Recognized in OCI on Derivative (Effective Portion) Year Ended December 31,
	2011			2010
Interest rate swaps	($	122,686	)	($	239,893	)

Effective portion of the pre-tax loss reclassified from accumulated other comprehensive loss ("OCL") into interest expense on the consolidated statements of income

Location of Loss Reclassified from AOCL into Income (Effective Portion)	Amount of Pre-Tax Loss Reclassified from AOCL into Income (Effective Portion) Year Ended December 31,
	2011		2010
Interest expense, net	$	208,985	$	215,399

Fair value of derivative instruments in the consolidated balance sheets

Asset Derivatives

Liability Derivatives

December 31, 2011

December 31, 2010

December 31, 2011

December 31, 2010

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Derivatives designated as hedging instruments

Other assets, net

$

—

Other assets, net

$

—

Other long-term liabilities

$

254,228

Other long-term liabilities

$

340,526