Mezzanine Equity (Tables)

6 Months Ended

Jun. 30, 2013

Mezzanine Equity [Abstract]

Schedule Of Redeemable Noncontrolling Interests In Subsidiary

		2013			2012
As of January 1,	$	241,649		$	235,909
Income allocated to redeemable noncontrolling interests		1,107			5,936
Distributions to redeemable noncontrolling interests		(6,682	)		(6,289	)
Increase (decrease) in fair value of redeemable noncontrolling interests
charged (credited) to additional paid-in capital		(22,434	)		10,990
Balance, June 30,	$	213,640		$	246,546

Sensitivity Analysis Of Fair Value Of Redeemable Noncontrolling Interests Using Discount And Terminal Growth Rates

						Discount Rates
Terminal Growth Rates			12.03	%		12.28	%		12.53	%
1.75	%	$	218.0		$	210.9		$	204.1
2.00	%	$	221.0		$	213.6		$	206.7
2.25	%	$	224.1		$	216.5		$	209.4