Supplemental Cash Flow Information

9 Months Ended

Sep. 30, 2011

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

Supplemental Cash Flow Information

	Nine Months Ended September 30,
	2011		2010
Supplemental disclosure of cash flow information:
Interest paid	$	312,992	$	319,519
Income taxes paid	4,343		3,037
Supplemental disclosure of non-cash financing activities:
Increase (decrease) in the fair value of forward-starting interest rate swaps	—		(114,157		)
Assets acquired through capital leases and installment sales	20,213		10,737