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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2014
Accounting Policies [Abstract]  
Schedule of Assumptions used in Discounted Cash Flows
The range of assumptions for the long-term growth rate and WACC used in our evaluations as of October 1, 2014 and 2013 were:
 
October 1,
  
2014
 
2013
Long-Term Growth Rate
4.3-10.0%

 
5.0-10.0%

WACC
8.95
%
 
9.50
%
Redeemable Noncontrolling Interest
The following table presents changes in Redeemable Noncontrolling Interests.
 
Years Ended December 31,
  
2014
 
2013
 
2012
Beginning Balance as of January 1,
$
148,534

 
$
117,953

 
$
107,432

Redemptions
(4,820
)
 
(4,270
)
 
(16,712
)
Granted
13,327

 
—

 
4,189

Changes in redemption value
38,850

 
35,689

 
22,912

Currency translation adjustments
(940
)
 
(838
)
 
132

Ending Balance as of December 31,
$
194,951

 
$
148,534

 
$
117,953