Quarterly report pursuant to Section 13 or 15(d)

Fair Value (Tables)

v3.8.0.1
Fair Value (Tables)
 3 Months Ended
Mar. 31, 2018
Fair Value Disclosures [Abstract]  
Schedule of fair value of financial assets and liabilities inputs The following fair value hierarchy tables categorize information regarding our financial assets and liabilities measured at fair value on a recurring basis at December 31, 2017 and March 31, 2018:
 
 
As of December 31, 2017
 
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
$
353,303

 
$
—

 
$
353,303

Corporate debt securities
—

 
1,250

 
1,250

Total assets measured at fair value
$
353,303

 
$
1,250

 
$
354,553


 
As of March 31, 2018
 
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
$
105,865

 
$
—

 
$
105,865

Commercial paper
—

 
194,383

 
194,383

Corporate debt securities
—

 
12,417

 
12,417

Total assets measured at fair value
$
105,865

 
$
206,800

 
$
312,665