v2.4.0.6
Supplemental Cash Flow Information (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended 1 Months Ended
Mar. 31, 2012
Jun. 30, 2012
Jun. 30, 2011
Apr. 30, 2011
Japan [Member]
Property
Real Estate Properties [Line Items]        
Debt assumed to acquire interest in Joint Venture       $ 61.7
Number Of Property Owned In Japan       1
Supplemental Cash Flow Information (Textual) [Abstract]        
Costs Of Share-based Compensation Awards   4.2 3.1  
Ownership Interest Received As Part Of Non-cash Proceed From Contribution 2.5      
Interest Paid In cash   267.8 170.5  
Cash Paid For Income Taxes   $ 18.4 $ 9.4