Mezzanine Equity (Tables)

3 Months Ended

Mar. 31, 2015

Mezzanine Equity [Abstract]

Schedule Of Redeemable Noncontrolling Interests

		2015			2014
As of January 1,	$	184,333		$	241,075
Loss allocated to redeemable noncontrolling
interests		(7,059	)		(5,939	)
Decrease in fair value of redeemable noncontrolling
interests credited to additional paid-in capital		(11,033	)		(755	)
Balance, March 31,	$	166,241		$	234,381

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

	Discount Rates
Terminal Growth Rates		12.75%		13.00%		13.25%
1.75%	$	170.0	$	164.2	$	158.6
2.00%	$	172.2	$	166.2	$	160.5
2.25%	$	174.5	$	168.4	$	162.5