Annual report pursuant to Section 13 and 15(d)

Accounting Policies Deferred Leasing Costs (Details)

v2.4.0.6
Accounting Policies Deferred Leasing Costs (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Accounting Policies [Abstract]    
Deferred Costs, Leasing, Gross Carrying Value $ 33.4 $ 31.6
Deferred Costs, Leasing, Accumulated Amortization 12.7 12.1
Deferred Costs, Leasing, Net $ 20.7 $ 19.5