Stock-Based Compensation (Tables)
 3 Months Ended
Apr. 29, 2017
Share-based Compensation [Abstract]  
Schedule of stock-based compensation expense by award type
For the three month periods ended April 29, 2017 and April 30, 2016, the Company recognized stock-based compensation expense as follows:

 
Three Months Ended
($000)
April 29, 2017

 
April 30, 2016

Restricted stock
$
10,701

 
$
9,065

Performance awards
8,783

 
7,949

Employee stock purchase plan
754

 
702

Total
$
20,238

 
$
17,716
Total stock-based compensation recognized in the condensed consolidated statements of earnings
Total stock-based compensation expense recognized in the Company's Condensed Consolidated Statements of Earnings for the three month periods ended April 29, 2017 and April 30, 2016 is as follows:

 
Three Months Ended
Statements of Earnings Classification ($000)
April 29, 2017

 
April 30, 2016

Cost of goods sold
$
9,795

 
$
7,830

Selling, general and administrative
10,443

 
9,886

Total
$
20,238

 
$
17,716
Unvested restricted stock activity
A summary of restricted stock and performance share award activity for the three month period ended April 29, 2017 is presented below:

(000, except per share data)
Number of
shares

 
Weighted
average
grant date
fair value

Unvested at January 28, 2017
5,563

 
$
43.19

Awarded
1,103

 
65.75

Released
(1,327
)
 
38.23

Forfeited
(20
)
 
51.64

Unvested at April 29, 2017
5,319

 
$
49.82
Stock option activity
A summary of the stock option activity for the three month period ended April 29, 2017 is presented below:

 
Number of
shares

 
Weighted average
exercise price

 
Weighted average remaining contractual term
 
Aggregate intrinsic value ($000)

Outstanding at January 28, 2017
48,564

 
$
8.19

 
 
 
 
Granted
—

 
—

 
 
 
 
Exercised
(16,188
)
 
8.19

 
 
 
 
Forfeited
—

 
—

 
 
 
 
Outstanding at April 29, 2017, all vested
32,376

 
$
8.19

 
0.07
 
$
1,839