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Investment (Tables)
 9 Months Ended
Oct. 29, 2017
Investment [Abstract]  
Future Receipts Related to Amortized Cost and Estimated Fair Value of Investment



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



 

October 29, 2017

 

 

January 29, 2017



 

Cost or

 

Gross

 

Gross

 

 

 

 

 



 

Amortized

 

Unrealized

 

Unrealized

 

Estimated

 

 

Estimated



 

Cost  

 

Gains

 

Losses

 

Fair Value

 

 

Fair Value

(in thousands)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level 3 security:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate trust

 

$

 6,323 

 

$

—

 

$

—

 

$

 6,323 

 

 

$

—



Available-for-Sale Security by Contractual Maturity



 

 

 

 



 

 

Estimated



 

 

Fair Value

(in thousands)

 

 

 

Within one year

 

 

$

—

After one year through five years

 

 

 

 719 

After five years through ten years

 

 

 

 1,181 

After ten years

 

 

 

 4,423 

Total

 

 

$

 6,323