Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments for Capital and Operating Leases

Future annual minimum rental payments required for all non-cancelable operating and capital leases at December 31, 2011 are as follows (in thousands):



For the Year Ending December 31,	Operating Leases		Capital Leases
2012	$	339,765	$	34,333
2013	344,499		35,347
2014	342,965		36,408
2015	338,915		37,500
2016	317,936		38,626
Thereafter	918,659		338,588
Total minimum future lease payments	$	2,602,739	520,802
Amount representing interest and maintenance			(239,635		)
Present value of minimum lease payments			281,167
Current portion			(8,070		)
Long-term capital lease obligations			$	273,097

Purchase Commitments Disclosure

The following table provides aggregate information about the commitments under the Company's purchase obligations and other agreements as of December 31, 2011 (in thousands):



For the Year Ending December 31,
2012	$	157,907
2013	6,320
2014	5,618
2015	5,786
2016	5,959

- Definition

Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value.

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