Annual report pursuant to Section 13 and 15(d)

Information by Business Segment (Details 3)

v2.4.0.6
Information by Business Segment (Details 3) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Reconciliation of segment assets to total assets      
Assets $ 3,653,759 $ 3,863,555  
Segment assets
     
Reconciliation of segment assets to total assets      
Assets 2,945,930 3,039,440 3,042,647
Non-operating property assets
     
Reconciliation of segment assets to total assets      
Assets 570,402 658,900  
Other
     
Reconciliation of segment assets to total assets      
Assets $ 137,427 $ 165,215