XML 45 R44.htm IDEA: XBRL DOCUMENT v2.4.0.6
Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2011
Fair Value of Financial Instruments [Abstract]  
Fair value and carrying values for notes and bonds payable, mortgage notes receivable and notes receivable
                                     
    December 31, 2011     December 31, 2010  

(Dollars in millions)

  Carrying
Value
    Fair
Value
    Carrying
Value
    Fair
Value
 

Notes and bonds payable

  $ 1,393.5     $ 1,534.3     $ 1,407.9         $ 1,460.2  

Mortgage notes receivable

  $ 97.4     $ 95.5     $ 36.6         $ 35.9  

Notes receivable, net of allowances

  $ 0.3     $ 0.3     $ 3.8         $ 3.8