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Warranty reserve (Tables)
 9 Months Ended
Nov. 03, 2018
Other Liabilities Disclosure [Abstract]  
Other Liabilities
The warranty reserve for diamond and gemstone guarantee, included in accrued expenses and other current liabilities and other non-current liabilities, is as follows:
 
13 weeks ended
 
39 weeks ended
(in millions)
November 3, 2018
 
October 28, 2017
 
November 3, 2018
 
October 28, 2017
Warranty reserve, beginning of period
$
36.4

 
$
39.3

 
$
37.2

 
$
40.0

Warranty expense
0.7

 
3.1

 
6.1

 
7.9

Utilized(1)
(2.8
)
 
(3.1
)
 
(9.0
)
 
(8.6
)
Warranty reserve, end of period
$
34.3

 
$
39.3

 
$
34.3

 
$
39.3


(1)  
Includes impact of foreign exchange translation.
(in millions)
November 3, 2018
 
February 3, 2018
 
October 28, 2017
Disclosed as:
 
 
 
 
 
Current liabilities
$
10.4

 
$
11.5

 
$
12.2

Non-current liabilities
23.9

 
25.7

 
27.1

Total warranty reserve
$
34.3

 
$
37.2

 
$
39.3