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Marketable Securities (Tables)
12 Months Ended
Jan. 30, 2021
Marketable Securities [Abstract]  
Summary of Investments in Marketable Securities
The following tables summarize our investments in marketable securities at January 30, 2021 and February 1, 2020:
 
 January 30, 2021
 (in thousands)
 Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair Value
Total marketable securities$18,475 $84 $— $18,559 
 February 1, 2020
 (in thousands)
 Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair Value
Total marketable securities$63,700 $196 $(3)$63,893