XML 70 R94.htm IDEA: XBRL DOCUMENT v2.4.0.6
Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Derivative [Line Items]      
Agreement expiration date Dec. 01, 2016    
Recognized interest expense $ 3,384,000 $ 4,805,000 $ 5,530,000
Interest Rate Swap Contracts [Member]
      
Derivative [Line Items]      
Agreement related to the outstanding trust preferred capital notes, date Dec. 04, 2008    
Agreement effective, date Dec. 01, 2008    
Notional amount of derivatives 7,000,000    
Derivative, Fixed Interest Rate 2.85%    
Recognized interest expense $ 170,000 $ 180,000