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Variable Interest Entities (Tables)
6 Months Ended
Jun. 30, 2013
Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract]  
Balances Related to Joint Ventures
 
Carrying Value
 
Maximum Loss Exposure
Investment in Unconsolidated Companies
$
47.0

 
$
47.0

Guarantee Obligations (1)
$
(21.8
)
 
$
(143.4
)

 
(1)
We are party to guarantees of the third-party debt of these joint ventures and our maximum loss exposure is equal to the maximum monetary obligation pursuant to the guarantee agreements. We have also recorded a liability for our probable future obligation under a guarantee to the lender of one of these ventures, which is included within the carrying value of our guarantee obligations. Pursuant to an agreement with the lender, we may make partner loans to this joint venture that will reduce our maximum guarantee obligation on a dollar-for-dollar basis. The carrying value of our recorded guarantee obligations is included in other liabilities in our Consolidated Balance Sheets.