XML 36 R25.htm IDEA: XBRL DOCUMENT v3.5.0.2
Fair Value Measurements (Available-For-Sale Marketable Securities) (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Marketable securities classified as available-for-sale    
Cost or Amortized Cost $ 60,249 $ 58,110
Gross Unrealized Gains 4,358 4,310
Gross Unrealized Losses (5) (10)
Total Estimated Fair Value 64,602 $ 62,410
Realized gains on available-for-sale marketable securities $ 2,009  
Maximum contractual maturities of Company's available-for-sale marketable securities 1 year 1 year
Commercial paper    
Marketable securities classified as available-for-sale    
Cost or Amortized Cost $ 34,615 $ 23,684
Gross Unrealized Gains 102 41
Total Estimated Fair Value 34,717 23,725
Corporate debt securities    
Marketable securities classified as available-for-sale    
Cost or Amortized Cost 14,885 20,569
Gross Unrealized Gains 3  
Gross Unrealized Losses (5) (10)
Total Estimated Fair Value 14,883 20,559
Corporate equity securities    
Marketable securities classified as available-for-sale    
Cost or Amortized Cost 10,749 13,857
Gross Unrealized Gains 4,253 4,269
Total Estimated Fair Value $ 15,002 $ 18,126