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Derivative Instruments and Hedging Activities (Tables)
 9 Months Ended
Sep. 30, 2012
General Discussion of Derivative Instruments and Hedging Activities [Abstract]  
Schedule of interest rate derivatives designated as cash flow hedges of interest rate risk
As of September 30, 2012, the Company had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk:
Interest Rate Derivatives
Notional
(in  thousands)
 
Asset
(Liability)
 
Effective Date
 
Maturity Date
 
Index
 
Strike Rate
Interest rate swap
$
1,793

 
(276
)
 
April 1, 2010
 
April 1, 2019
 
1-month LIBOR
 
5.91
%
Interest rate swap
$
1,793

 
(292
)
 
April 1, 2010
 
April 1, 2019
 
1-month LIBOR
 
6.07
%