Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation Plans - Deferred Stock Units, Performance Units and Restricted Stock (Details)

v3.5.0.2
Share-Based Compensation Plans - Deferred Stock Units, Performance Units and Restricted Stock (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Oct. 29, 2016
Oct. 31, 2015
Oct. 29, 2016
Oct. 31, 2015
Share-based compensation        
Share-based compensation expense $ 5.2 $ 4.2 $ 14.0 $ 12.6
2016 LTIP        
Share-based compensation        
Maximum number of common stock shares authorized for awards under the plan 6,400,000   6,400,000  
Shares        
Granted (in shares)     18,328  
Non-Vested Deferred Stock Units and Restricted Stock Shares        
Unrecognized compensation cost        
Unrecognized compensation cost $ 24.6   $ 24.6  
Compensation recognition period     1 year 6 months  
Deferred stock units        
Additional information        
Shares relinquished for tax withholding     71,896  
Vesting period     3 years  
Time-Based DSUs        
Shares        
Non-Vested at the beginning of the period (in shares)     478,106  
Granted (in shares)     830,002  
Vested (in shares)     (216,936)  
Forfeited (in shares)     (24,426)  
Non-Vested at the end of the period (in shares) 1,066,746   1,066,746  
Weighted-Average Grant-Date Fair Value        
Non-Vested at the beginning of the period (in dollars per share)     $ 49.60  
Granted (in dollars per share)     16.68  
Vested (in dollars per share)     49.01  
Forfeited (in dollars per share)     39.49  
Non-Vested at the end of the period (in dollars per share) $ 24.34   $ 24.34  
Time-Based DSUs | Awards granted prior to April 3, 2013        
Shares        
Non-Vested at the end of the period (in shares) 11,288   11,288  
Performance-Based DSUs, including performance units        
Shares        
Non-Vested at the beginning of the period (in shares)     168,656  
Granted (in shares)     258,168  
Forfeited (in shares)     (59,943)  
Non-Vested at the end of the period (in shares) 366,881   366,881  
Weighted-Average Grant-Date Fair Value        
Non-Vested at the beginning of the period (in dollars per share)     $ 47.87  
Granted (in dollars per share)     17.43  
Forfeited (in dollars per share)     33.72  
Non-Vested at the end of the period (in dollars per share) $ 28.76   $ 28.76  
Performance units | Two year anniversary        
Additional information        
Vesting percentage     50.00%  
Vesting period     2 years  
Performance units | Three year anniversary        
Additional information        
Vesting percentage     50.00%  
Vesting period     3 years  
Restricted Stock        
Shares        
Non-Vested at the beginning of the period (in shares)     33,157  
Granted (in shares)     18,646  
Vested (in shares)     (6,951)  
Non-Vested at the end of the period (in shares) 44,852   44,852  
Weighted-Average Grant-Date Fair Value        
Non-Vested at the beginning of the period (in dollars per share)     $ 27.93  
Granted (in dollars per share)     17.37  
Vested (in dollars per share)     58.44  
Non-Vested at the end of the period (in dollars per share) $ 18.81   $ 18.81