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Investments (Tables)
 3 Months Ended
May 05, 2018
Investments [Abstract]  
Marketable Securities [Table Text Block]

Investments in available-for-sale securities consisted of the following:
(in thousands)
May 5, 2018
 
February 3, 2018
 
April 29, 2017
Carrying value of investments
$
72,688

 
$
125,349

 
$
174,381

Unrealized gains included in accumulated other comprehensive loss
6

 
23

 
87

Unrealized losses included in accumulated other comprehensive loss
(986
)
 
(767
)
 
(275
)
Fair value
$
71,708

 
$
124,605

 
$
174,193