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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)
3 Months Ended
Mar. 31, 2013
FAIR VALUE OF FINANCIAL INSTRUMENTS [Abstract]  
Assets and liabilities measured at fair value on a recurring basis
The following table presents information about ALC's assets and liabilities measured at fair value on a recurring basis as of March 31, 2013 and December 31, 2012, and indicates the fair value hierarchy of the valuation techniques utilized
by ALC to determine such fair value (in thousands):

   
Quoted Prices in Active Markets for Identical Assets (Level 1)
  
Significant Other Observable Inputs (Level 2)
  
Significant Unobservable Inputs
(Level 3)
  
Total
 
March 31, 2013
            
Assets
            
      Equity investments
 $247  $  $  $247 
                  
December 31, 2012
                
Assets
                
      Equity investments
 $212  $  $  $212