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Intangible Asset and Goodwill (Details 2) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Goodwill    
Gross Carrying Amount $ 138,669  
Accumulated Impairment Losses (21,770)  
Net Carrying Amount 116,899 124,969
MID Segment
   
Goodwill    
Gross Carrying Amount 19,905  
Accumulated Impairment Losses 0  
Net Carrying Amount 19,905 19,905
CTO Segment
   
Goodwill    
Gross Carrying Amount 8,070  
Accumulated Impairment Losses (8,070)  
Net Carrying Amount 0 8,070
All Other
   
Goodwill    
Gross Carrying Amount 110,694  
Accumulated Impairment Losses (13,700)  
Net Carrying Amount $ 96,994 $ 96,994