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Marketable Debt Securities (Tables)
12 Months Ended
Aug. 31, 2019
Investments, Debt and Equity Securities [Abstract]  
Available-for-Sale Marketable Securities The Company’s
available-for-sale
marketable debt securities consisted of the following:
 
 
 
 
August 31, 2019
 
(in thousands
)
 
 
Amortized
Cost

Basis
  
Gross
Unrealized
Gains
  
Gross
Unrealized
Losses
  
Fair
Value
 
Corporate debt securities
 
 $36,998  $29  $(19 $37,008 
Government bonds
 
  45,741   763   —     46,504 
Mortgage-backed securities
 
  2,089   2   (15  2,076 
Asset-backed securities and other
 
  53,345   —     (7  53,338 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 $138,173  $794  $(41 $138,926 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
  
August 25, 2018
 
(in thousands
)
 
Amortized
Cost

Basis
  
Gross
Unrealized
Gains
  
Gross
Unrealized
Losses
  
Fair
Value
 
Corporate debt securities
 $50,306  $—    $(684 $49,622 
Government bonds
  28,777   —     (173  28,604 
Mortgage-backed securities
  3,248   —     (90  3,158 
Asset-backed securities and other
  53,445   —     (153  53,292 
  
 
 
  
 
 
  
 
 
  
 
 
 
  $135,776  $—    $(1,100 $134,676