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
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2011
Reconciliation of segment assets to total assets      
Assets $ 3,715,075 $ 3,867,524 $ 3,868,230
Segment assets
     
Reconciliation of segment assets to total assets      
Assets 2,982,956   3,026,262
Non-operating property assets
     
Reconciliation of segment assets to total assets      
Assets 607,590   686,806
Other
     
Reconciliation of segment assets to total assets      
Assets $ 124,529   $ 155,162