XML 61 R39.htm IDEA: XBRL DOCUMENT v2.3.0.15
Investment Income, Net (Tables)
9 Months Ended
Sep. 30, 2011
Investment Income, Net [Abstract] 
Schedule Of Investment Income, Net
     Three Months Ended
September 30,		      Nine Months Ended
September 30,		  
     2011      2010      2011      2010  
     (In thousands)  

Interest and dividend income from cash, cash equivalents and short-term investments

    $ 39       $ 33       $ 107       $ 82