Quarterly report pursuant to Section 13 or 15(d)

Fair Value (Tables)

v3.2.0.727
Fair Value (Tables)
 6 Months Ended
Jun. 30, 2015
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, 2014 and June 30, 2015:
 
 
As of December 31, 2014
 
Fair Value Measurement Using
 
Quoted Prices in Active Markets
for Identical
Instruments
(Level 1)
 
Significant Other
Observable
Inputs
(Level 2)
 
Total
 
(in thousands)
Assets
 

 
 

 
 

Money market funds
$
89,113

 
$
—

 
$
89,113

Commercial paper
—

 
54,792

 
54,792

Corporate debt securities
—

 
234,697

 
234,697

U.S. government and government agency debt securities
—

 
7,742

 
7,742

Total assets measured at fair value
$
89,113

 
$
297,231

 
$
386,344

 
As of June 30, 2015
 
Fair Value Measurement Using
 
Quoted Prices in Active Markets
for Identical
Instruments
(Level 1)
 
Significant Other
Observable
Inputs
(Level 2)
 
Total
 
(in thousands)
Assets
 

 
 

 
 

Money market funds
$
94,948

 
$
—

 
$
94,948

Commercial paper
—

 
50,331

 
50,331

Corporate debt securities
—

 
214,673

 
214,673

U.S. government and government agency debt securities
—

 
2,502

 
2,502

Total assets measured at fair value
$
94,948

 
$
267,506

 
$
362,454