Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2012

Supplemental Cash Flow Information [Abstract]

The following table is a summary of the supplemental cash flow information during the years ended December 31, 2012, 2011 and 2010.



	Years Ended December 31,
	2012		2011		2010
Supplemental disclosure of cash flow information:
Interest paid	$	504,494	$	404,443	$	409,293
Income taxes paid (refund)	3,375		4,340		(5,935		)
Supplemental disclosure of non-cash investing and financing activities:
Increase (decrease) in the fair value of forward-starting interest rate swaps (note 7)	—		—		(114,157		)
Increase (decrease) in liabilities for purchases of property and equipment	58,638		27,094		18,682
Conversion of redeemable convertible preferred stock (note 10)	305,180		—		—
Assumption of WCP Securitized Notes	336,273		—		—

- Definition

The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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