Fair Value Measurements (Tables)
9 Months Ended
Oct. 28, 2017
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
The following table presents the Company's financial assets, recorded in cash and cash equivalents on the unaudited Consolidated Balance Sheet, measured at fair value on a recurring basis as of October 28, 2017 and January 28, 2017, aggregated by the level in the fair value hierarchy within which those measurements fall.
 
October 28, 2017
 
Level 1
 
Level 2
 
Level 3
 
(in thousands)
Money market funds
$
116,914

 
$

 
$

Commercial paper

 
59,916

 

 
$
116,914

 
$
59,916

 
$

 
 
 
January 28, 2017
 
Level 1
 
Level 2
 
Level 3
 
(in thousands)
Money market funds
$
177,551

 
$

 
$