Share-Based Compensation (Tables)
 9 Months Ended
Nov. 25, 2016
Performance Units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Valuation Assumptions for Performance Unit Awards
The weighted average grant date fair values were determined using the following assumptions:
 
2017 Awards
2016 Awards
2015 Awards
Three-year risk-free interest rate (1)
0.9
%
0.8
%
0.7
%
Expected term
3 years

3 years

3 years

Estimated volatility (2)
31.2
%
29.4
%
42.2
%
_______________________________________
(1)
Based on the U.S. government bond benchmark on the grant date.
(2)
Represents the historical price volatility of the Company’s common stock for the three-year period preceding the grant date.
Schedule of Compensation Costs by Plan for Share-based Payment Arrangements
The total PSU expense and associated tax benefit for all outstanding awards for the three and nine months ended November 25, 2016 and November 27, 2015 are as follows:
 
Three Months Ended
Nine Months Ended
Performance Units
November 25,
2016
November 27,
2015
November 25,
2016
November 27,
2015
Expense
$
1.5

 
$
0.6

 
$
4.7

 
$
6.0

 
Tax benefit
0.5

 
0.3

 
1.7

 
2.2

 
Schedule of Performance Unit Awards Activity
The PSU activity for the nine months ended November 25, 2016 is as follows:
Maximum Number of Shares That May Be Issued Under Nonvested Units
Total
Weighted-Average
Grant Date
Fair Value per Unit
Nonvested as of February 26, 2016
1,147,844

$
20.66

Granted
379,600

16.33

Nonvested as of November 25, 2016
1,527,444

$
19.59
Restricted Stock Units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Compensation Costs by Plan for Share-based Payment Arrangements
The RSU expense and associated tax benefit for all outstanding awards for the three and nine months ended November 25, 2016 and November 27, 2015 are as follows:
 
Three Months Ended
Nine Months Ended
Restricted Stock Units
November 25,
2016
November 27,
2015
November 25,
2016
November 27,
2015
Expense
$
2.5

 
$
2.5

 
$
11.4

 
$
10.9

 
Tax benefit
0.9

 
0.9

 
4.1

 
3.9

 
Schedule of Restricted Stock Unit Awards Activity
The RSU activity for the nine months ended November 25, 2016 is as follows:
Nonvested Units
Total
Weighted-Average
Grant Date
Fair Value
per Unit
Nonvested as of February 26, 2016
1,638,888

$
18.45

Granted
975,663

14.66

Vested
(167,500
)
15.87

Forfeited
(35,207
)
16.86

Nonvested as of November 25, 2016
2,411,844

$
16.45