Annual report pursuant to Section 13 and 15(d)

Financial Instruments - Concentration Risk (Details)

v2.4.0.6
Financial Instruments - Concentration Risk (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2011
Jun. 30, 2010
Concentration Risk [Line Items]        
Discontinued FASI customer revenue as percentage of consolidated revenue 1.10% 2.20%    
Revenue from discontinued customer relationship $ 5,541 $ 9,050    
Percentage of revenue from discontinued customer of FASI revenue 7.50% 12.50%    
Concentrations of Credit Risk [Abstract]        
Fair Value, Concentration of Risk, Accounts Receivable     $ 5,448  
Number of FASI customers receiving notice services would cease       1
FASI [Member]
       
Concentrations of Credit Risk [Abstract]        
Number of customers accounting for majority of FASI annual operating revenue     4  
Concentration of operating revenue (in hundredths)     77.90%