Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 2)

v2.4.0.6
Fair Value Measurements (Details 2) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
9.0% Notes [Member]
   
Fair value and carrying value of fixed rate long-term debt    
Long-term Debt, Fair Value $ 230,475 $ 221,025
Long-term Debt, Carrying Value 208,883 208,769
7.0% Notes
   
Fair value and carrying value of fixed rate long-term debt    
Long-term Debt, Fair Value 214,500  
Long-term Debt, Carrying Value 198,251  
5.0 % Convertible Notes [Member]
   
Fair value and carrying value of fixed rate long-term debt    
Long-term Debt, Fair Value    205,448
Long-term Debt, Carrying Value    137,333
Mortgage Notes at Fixed Interest Rate [Member]
   
Fair value and carrying value of fixed rate long-term debt    
Long-term Debt, Fair Value 127,628 119,310
Long-term Debt, Carrying Value 124,132 116,584
Assumed Notes [Member]
   
Fair value and carrying value of fixed rate long-term debt    
Long-term Debt, Fair Value 11,286 13,260
Long-term Debt, Carrying Value 12,095 14,438
Other [Member]
   
Fair value and carrying value of fixed rate long-term debt    
Long-term Debt, Fair Value 5,018 5,150
Long-term Debt, Carrying Value $ 5,396 $ 5,555