Share-Based Compensation (Tables)
12 Months Ended
Jan. 28, 2012
Share-based Compensation [Abstract]  
Schedule of Shared-based Compensation Expense [Table Text Block]
 
2011
2010
2009
 
(in thousands)
Stock options
$
6,323

$
2,044

$

Restricted stock units and restricted stock
3,597

102


Restricted shares (equity issued pre-IPO)
169

3,150

2,048

Total share-based compensation
$
10,089

$
5,296

$
2,048

Schedule of Share-based Compensation, Activity [Table Text Block]
 
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 29, 2011
1,383

 
$
16.94

 
 
 
 
Granted
1,469

 
$
18.79

 
 
 
 
Exercised
(19
)
 
$
17.00

 
 
 
 
Forfeited
(166
)
 
$
17.44

 
 
 
 
Outstanding, January 28, 2012
2,667

 
$
17.93

 
8.8

 
$
10,597

Expected to vest at January 28, 2012
2,313

 
$
18.05

 
8.8

 
$
8,882

Exercisable at January 28, 2012
321

 
$
16.94

 
8.3

 
$
1,582

Supplemental Options Data [Table Text Block]
 
2011
2010
 
(in thousands, except per share amounts)
Weighted average grant date fair value of options granted
$
10.01

$
9.17

Total intrinsic value of options exercised
$
102

$

Total fair value of options vested
$
3,115

$

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
 
2011
 
2010
Risk-free interest rate (1)
2.27
%
 
2.84
%
Price Volatility (2)
54
%
 
54
%
Expected term (years) (3)
6.25

 
6.25

Dividend yield (4)

 

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 2011 was as follows:
 
 
Number of
Shares 
Grant Date
Weighted Average
Fair Value 
 
(in thousands, except per share amounts)
Unvested, January 29, 2011
44

$
4.88

Granted
939

$
18.96

Vested
(14
)
$
7.67

Forfeited
(69
)
$
18.14

Unvested, January 28, 2012
900

$
18.52

Schedule of Nonvested Share Activity [Table Text Block]
The Company's activity with respect to restricted shares for 2011 was as follows:
 
 
Number of
Shares 
Grant Date
Weighted Average
Fair Value 
 
(in thousands, except per share amounts)
Unvested, January 29, 2011
220

$
1.03

Granted

$

Vested
(187
)
$
1.06

Repurchased
(11
)
$
0.90

Unvested, January 28, 2012
22

$
0.90

Schedule of Share-based Payment Award, Restricted Shares, Valuation Assumptions [Table Text Block]
The following table illustrates the assumptions used in the Black-Scholes-Merton pricing model for the restricted shares:  
 
 
2009
Risk-free interest rate
 
0.20
%
Asset volatility
 
50
%
Time to liquidity event
 
7 months

Marketability discount
 
10
%
Equity dividend yield