Share-Based Compensation (Tables)
12 Months Ended
Feb. 02, 2013
Share-based Compensation [Abstract]  
Schedule of Shared-based Compensation Expense [Table Text Block]
The following summarizes our share-based compensation expense:
 
2012
 
2011
 
2010
 
(in thousands)
Stock options
$
8,123

 
$
6,323

 
$
2,044

Restricted stock units and restricted stock
8,171

 
3,597

 
102

Restricted shares (equity issued pre-IPO)
14

 
169

 
3,150

Total share-based compensation
$
16,308

 
$
10,089

 
$
5,296

Schedule of Share-based Compensation, Activity [Table Text Block]
The Company's activity with respect to stock options during 2012 was as follows:
 
 
Number of
Shares 
 
Grant Date
Weighted Average
Exercise Price
 
Weighted-Average Remaining Contractual Life
 
Aggregate Intrinsic Value
 
(in thousands, except per share amounts and years)
Outstanding, January 28, 2012
2,667

 
$
17.93

 
 
 
 
Granted
580

 
$
23.89

 
 
 
 
Exercised
(37
)
 
$
17.43

 
 
 
 
Forfeited or expired
(118
)
 
$
19.53

 
 
 
 
Outstanding, February 2, 2013
3,092

 
$
18.99

 
8
 
$
2,275

Expected to vest at February 2, 2013
2,001

 
$
19.60

 
8.2
 
$
1,246

Exercisable at February 2, 2013
987

 
$
17.64

 
7.6
 
$
952

Supplemental Options Data [Table Text Block]
The following provides additional information regarding the Company's stock options:
 
2012
 
2011
 
2010
 
(in thousands, except per share amounts)
Weighted average grant date fair value of options granted
$
12.75

 
$
10.01

 
$
9.17

Total intrinsic value of options exercised
$
270

 
$
102

 
$

Total fair value of options vested
$
6,779

 
$
3,115

 
$

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
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:

 
2012
 
2011
 
2010
Risk-free interest rate (1)
1.12
%
 
2.27
%
 
2.84
%
Price Volatility (2)
55.9
%
 
54.0
%
 
54.0
%
Expected term (years) (3)
6.17

 
6.25

 
6.25

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 Company's IPO, 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 with the second anniversary of the IPO n 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 [Table Text Block]
The Company's activity with respect to RSUs and restricted stock for the 2012 was as follows:
 
 
Number of
Shares 
Grant Date
Weighted Average
Fair Value 
 
(in thousands, except per share amounts)
Unvested, January 28, 2012
900

$
18.52

Granted
837

$
23.97

Vested
(180
)
$
17.95

Forfeited
(339
)
$
23.18

Unvested, February 2, 2013
1,218

$
21.49