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STOCK-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 28, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of stock-based compensation expense
Stock-based compensation expense was as follows (in millions):
 
2012
 
2011
 
2010
Restricted and unrestricted stock and performance share units expense
$
7.5

 
$
6.7

 
$
5.9

Stock option expense
0.1

 
0.4

 
1.0

ESPP expense
0.3

 
0.3

 
0.3

Total stock-based compensation expense
$
7.9

 
$
7.4

 
$
7.2

 
 
 
 
 
 
Total related tax benefit recognized
$
2.9

 
$
2.8

 
$
2.3
Schedule of restricted and unrestricted stock and performance share units activity
Restricted, unrestricted stock and performance share units activity for the year ended December 28, 2012 was as follows (shares in thousands):
 
Shares
 
Price (1)
Non-vested at beginning of period
1,266

 
$
13.92

Granted
653

 
$
16.72

Vested
(382
)
 
$
13.79

Forfeited
(102
)
 
$
13.86

Non-vested at the end of the period
1,435

 
$
15.23

_____________________
(1)
Weighted average market price on grant-date.
Schedule of stock option valuation assumptions
A summary of the weighted average assumptions and results for options granted during 2010 is as follows:
 
 
2010
Expected life (in years)
 
3.36

Expected volatility
 
59.6
%
Risk-free interest rate
 
1.3
%
Expected dividend yield
 
—
%
Weighted average fair value of options granted during the period
 
$
6.24
Schedule of stock option activity
Stock option activity was as follows (shares in thousands):
 
Shares
 
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Life
 
Aggregate Intrinsic Value (in millions)
Outstanding, December 30, 2011
1,110

 
$
15.64

 
 
 
 
Granted
—

 
$
—

 
 
 
 
Exercised
(262
)
 
$
9.67

 
 
 
 
Expired/Forfeited
(209
)
 
$
19.22

 
 
 
 
Outstanding, December 28, 2012
639

 
$
16.91

 
1.4
 
$
0.6


 
 
 
 
 
 
 
Exercisable, December 28, 2012
634

 
$
16.97

 
1.4
 
$
0.6

Options expected to vest, December 28, 2012
5

 
$
9.08

 
1.1
 
$
—
Schedule of employee stock purchase plan transactions
The following table summarizes transactions under our ESPP from fiscal year 2010 through 2012 (shares in thousands):
 
Shares    
 
Average Price Per    
Share
Issued during fiscal year 2012
95

 
$
12.41

Issued during fiscal year 2011
83

 
$
11.95

Issued during fiscal year 2010
81

 
$
10.75