Quarterly report pursuant to Section 13 or 15(d)

Information by Business Segment (Details 3)

v2.4.0.6
Information by Business Segment (Details 3) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Sep. 30, 2011
Reconciliation of segment assets to total assets      
Assets $ 3,597,656 $ 3,867,524 $ 3,965,392
Segment assets
     
Reconciliation of segment assets to total assets      
Assets 2,836,547   3,055,750
Non-operating property assets
     
Reconciliation of segment assets to total assets      
Assets 616,526   727,268
Other
     
Reconciliation of segment assets to total assets      
Assets $ 144,583   $ 182,374