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Share-Based Compensation (Tables)
 12 Months Ended
Jan. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Shared-based Compensation Expense
The following summarizes share-based compensation expense:
 
2015
 
2014
 
2013
 
(in thousands)
Stock options
$
3,399

 
$
7,556

 
$
8,883

Restricted stock units and restricted stock
15,039

 
11,770

 
12,291

Total share-based compensation
$
18,438

 
$
19,326

 
$
21,174
Schedule of Share-based Compensation, Activity
The Company's activity with respect to stock options during 2015 was as follows:
 
Number of
Shares 
 
Grant Date
Weighted Average
Exercise Price
 
Weighted-Average Remaining Contractual Life
(in years)
 
Aggregate Intrinsic Value
 
(in thousands, except per share amounts and years)
Outstanding, January 31, 2015
3,470

 
$
18.45

 
 
 
 
Granted
249

 
$
16.37

 
 
 
 
Exercised
(74
)
 
$
17.16

 
 
 
 
Forfeited or expired
(199
)
 
$
18.86

 
 
 
 
Outstanding, January 30, 2016
3,446

 
$
18.31

 
5.9
 
$
893

Expected to vest at January 30, 2016
764

 
$
17.19

 
8.0
 
$
488

Exercisable at January 30, 2016
2,663

 
$
18.64

 
5.3
 
$
392
Supplemental Options Data
The following provides additional information regarding the Company's stock options:
 
2015
 
2014
 
2013
 
(in thousands, except per share amounts)
Weighted average grant date fair value of options granted
$
7.79

 
$
8.49

 
$
9.50

Total intrinsic value of options exercised
$
176

 
$
—

 
$
1,001
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The fair value of stock options was estimated at the grant date using the Black-Scholes-Merton option pricing model with the following weighted-average assumptions:
 
2015
 
2014
 
2013
Risk-free interest rate (1)
1.60
%
 
1.86
%
 
1.14
%
Price Volatility (2)
47.81
%
 
53.73
%
 
55.93
%
Expected term (years) (3)
6.25

 
6.25

 
6.20

Dividend yield (4)
—

 
—

 
—


(1)
Represents the yield on U.S. Treasury securities with a term consistent with the expected term of the stock options.
(2)
For the first two years following the initial public offering of the Company's common stock, this was based on the historical volatility of selected comparable companies over a period consistent with the expected term of the stock options because the Company had a limited history of being publicly traded. Comparable companies were selected primarily based on industry, stage of life cycle, and size. Beginning in May 2012, the Company began using its own volatility as an additional input in the determination of expected volatility.
(3)
Calculated utilizing the “simplified” methodology prescribed by SAB No. 107 due to the lack of historical exercise data necessary to provide a reasonable basis upon which to estimate the term.
(4)
The Company does not currently plan on paying regular dividends.
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
The Company's activity with respect to RSUs and restricted stock, including awards with performance conditions, for 2015 was as follows:
 
Number of
Shares 
 
Grant Date
Weighted Average
Fair Value 
 
(in thousands, except per share amounts)
Unvested, January 31, 2015
1,435

 
$
17.75

Granted (1)
1,292

 
$
16.39

Performance Shares Adjustment (2)
366

 
$
15.88

Vested
(623
)
 
$
18.07

Forfeited
(258
)
 
$
16.94

Unvested, January 30, 2016
2,212

 
$
16.66


(1)
Approximately 0.5 million RSUs with three-year performance conditions are included in this amount which represents 125% of the number of shares granted. This is based on current estimates against predefined financial performance targets.
(2)
Represents a change in the number of 2014 RSUs with performance conditions expected to vest. The change was due to an updated estimate of the Company's achievement against predefined financial targets. This amount represents approximately 77% of the number of RSUs with performance conditions granted in 2014.