Quarterly report pursuant to Section 13 or 15(d)

Fair Value (Tables)

v2.4.0.8
Fair Value (Tables)
9 Months Ended
Sep. 30, 2014
Fair Value Disclosures [Abstract]  
Schedule of fair value of financial assets and liabilities
The fair value of these financial assets and liabilities was determined using the following inputs at December 31, 2013 and September 30, 2014:
 
 
As of December 31, 2013
 
Fair Value Measurement Using
 
Quoted Prices in
 
Significant
 
 
 
Active Markets
for Identical
Instruments
(Level 1)
 
Other
Observable
Inputs
(Level 2)
 
Total
 
(in thousands)
Assets:
 

 
 

 
 

Money market funds
$
98,437

 
$

 
$
98,437

Commercial paper

 
101,773

 
101,773

Corporate debt securities

 
155,021

 
155,021

U.S. government and government agency debt securities

 
5,696

 
5,696

Total assets measured at fair value
$
98,437

 
$
262,490

 
$
360,927

 
As of September 30, 2014
 
Fair Value Measurement Using
 
Quoted Prices in
 
Significant
 
 
 
Active Markets
for Identical
Instruments
(Level 1)
 
Other
Observable
Inputs
(Level 2)
 
Total
 
(in thousands)
Assets:
 

 
 

 
 

Money market funds
$
91,780

 
$

 
$
91,780

Commercial paper

 
60,743

 
60,743

Corporate debt securities

 
220,707

 
220,707

U.S. government and government agency debt securities

 
13,104

 
13,104

Total assets measured at fair value
$
91,780

 
$
294,554

 
$
386,334