Transition report pursuant to Rule 13a-10 or 15d-10

Composition of Certain Financial Statement Captions (Details 2)

v2.4.0.8
Composition of Certain Financial Statement Captions (Details 2) (USD $)
In Thousands, unless otherwise specified
 11 Months Ended
Dec. 31, 2013
item
Jan. 31, 2013
Available-for-sale securities    
Adjusted Cost $ 361,183 $ 66,272
Unrealized Gains 6  
Unrealized Losses (262) (3)
Fair Value 360,927 66,269
Adjusted Cost    
Due in one year or less 255,278  
Due after one year through three years 105,906  
Total 361,184  
Fair Value    
Due in one year or less 255,241  
Due after one year through three years 105,686  
Total 360,927  
Number of owned securities that were in an unrealized loss position 68  
Unrealized losses deemed to be other-than-temporary 0  
Available-for-sale securities that have been in an unrealized loss position for twelve months or more 0  
Money market funds
    
Available-for-sale securities    
Adjusted Cost 98,437 32,522
Fair Value 98,437 32,522
Commercial paper
    
Available-for-sale securities    
Adjusted Cost 101,773 24,093
Unrealized Losses   (1)
Fair Value 101,773 24,092
Corporate debt securities
    
Available-for-sale securities    
Adjusted Cost 155,273 9,657
Unrealized Gains 6  
Unrealized Losses (258) (2)
Fair Value 155,021 9,655
U.S. government and government agency debt securities
    
Available-for-sale securities    
Adjusted Cost 5,700  
Unrealized Losses (4)  
Fair Value $ 5,696