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Share-Based Compensation Plan (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Feb. 10, 2016
Jul. 27, 2015
Feb. 11, 2015
Feb. 04, 2014
Dec. 13, 2013
Jan. 30, 2013
Feb. 08, 2012
Mar. 31, 2016
Restricted Stock [Member]                
Summary of restricted share activity                
Unvested shares, Beginning balance               124,617
Unvested shares, Granted               67,280
Vested, shares               (52,452)
Forfeited, shares               (1,285)
Unvested shares, Ending balance               138,160
Unvested weighted average grant date fair value, beginning balance               $ 35.46
Granted, weighted average grant date fair value               23.81
Vested, weighted average grant date fair value               32.79
Forfeited, weighted average grant date fair value               33.86
Unvested weighted average grant date fair value, ending balance               $ 30.82
February 2012 [Member] | Performance Shares [Member]                
Summary of restricted share activity                
Unvested shares, Granted             72,056  
February 2012 [Member] | Relative TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award             30.00%  
Grant Date Fair Value by Component ($ in millions)             $ 0.7  
Volatility             33.00%  
Interest Rate             0.34%  
Dividend Yield             2.20%  
February 2012 [Member] | Absolute TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award             30.00%  
Grant Date Fair Value by Component ($ in millions)             $ 0.6  
Volatility             33.00%  
Interest Rate             0.34%  
Dividend Yield             2.20%  
February 2012 [Member] | EBITDA Comparison [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award             40.00%  
Grant Date Fair Value by Component ($ in millions)             $ 0.7  
Volatility             33.00%  
Interest Rate             0.34%  
Dividend Yield             2.20%  
January 2013 [Member] | Performance Shares [Member]                
Summary of restricted share activity                
Unvested shares, Granted           72,118    
January 2013 [Member] | Relative TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award           30.00%    
Grant Date Fair Value by Component ($ in millions)           $ 0.7    
Volatility           31.00%    
Interest Rate           0.41%    
Dividend Yield           2.20%    
January 2013 [Member] | Absolute TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award           30.00%    
Grant Date Fair Value by Component ($ in millions)           $ 0.5    
Volatility           31.00%    
Interest Rate           0.41%    
Dividend Yield           2.20%    
January 2013 [Member] | EBITDA Comparison [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award           40.00%    
Grant Date Fair Value by Component ($ in millions)           $ 0.7    
Volatility           31.00%    
Interest Rate           0.41%    
Dividend Yield           2.20%    
December 2013 [Member] | Performance Shares [Member]                
Summary of restricted share activity                
Unvested shares, Granted         252,088      
Vested, shares               (25,134)
December 2013 [Member] | Relative TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award         50.00%      
Grant Date Fair Value by Component ($ in millions)         $ 4.7      
Volatility         29.00%      
Dividend Yield         2.40%      
December 2013 [Member] | Absolute TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award         50.00%      
Grant Date Fair Value by Component ($ in millions)         $ 2.9      
Volatility         29.00%      
Dividend Yield         2.40%      
February 2014 [Member] | Performance Shares [Member]                
Summary of restricted share activity                
Unvested shares, Granted       66,483        
February 2014 [Member] | Relative TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award       30.00%        
Grant Date Fair Value by Component ($ in millions)       $ 0.7        
Volatility       29.00%        
Interest Rate       0.62%        
Dividend Yield       2.40%        
February 2014 [Member] | Absolute TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award       30.00%        
Grant Date Fair Value by Component ($ in millions)       $ 0.5        
Volatility       29.00%        
Interest Rate       0.62%        
Dividend Yield       2.40%        
February 2014 [Member] | EBITDA Comparison [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award       40.00%        
Grant Date Fair Value by Component ($ in millions)       $ 0.8        
Volatility       29.00%        
Interest Rate       0.62%        
Dividend Yield       2.40%        
February 2015 [Member] | Performance Shares [Member]                
Summary of restricted share activity                
Unvested shares, Granted     44,962          
February 2015 [Member] | Relative TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award     30.00%          
Grant Date Fair Value by Component ($ in millions)     $ 0.9          
Volatility     22.00%          
Interest Rate     1.02%          
Dividend Yield     2.50%          
February 2015 [Member] | Absolute TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award     40.00%          
Grant Date Fair Value by Component ($ in millions)     $ 0.7          
Volatility     22.00%          
Interest Rate     1.02%          
Dividend Yield     2.50%          
February 2015 [Member] | EBITDA Comparison [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award     30.00%          
Grant Date Fair Value by Component ($ in millions)     $ 0.7          
Volatility     22.00%          
Interest Rate     1.02%          
Dividend Yield     2.50%          
July 2015 [Member] | Performance Shares [Member]                
Summary of restricted share activity                
Unvested shares, Granted   771            
July 2015 [Member] | Relative TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award   30.00%            
Grant Date Fair Value by Component ($ in millions) [1]   $ 0.0            
Volatility   22.00%            
Interest Rate   0.68%            
Dividend Yield   2.50%            
July 2015 [Member] | Absolute TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award   40.00%            
Grant Date Fair Value by Component ($ in millions) [1]   $ 0.0            
Volatility   22.00%            
Interest Rate   0.68%            
Dividend Yield   2.50%            
July 2015 [Member] | EBITDA Comparison [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award   30.00%            
Grant Date Fair Value by Component ($ in millions) [1]   $ 0.0            
Volatility   22.00%            
Interest Rate   0.68%            
Dividend Yield   2.50%            
February 2016 [Member] | Performance Shares [Member]                
Summary of restricted share activity                
Unvested shares, Granted 100,919              
February 2016 [Member] | Relative TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award 70.00%              
Grant Date Fair Value by Component ($ in millions) $ 1.6              
Volatility 25.00%              
Interest Rate 0.71%              
Dividend Yield 3.00%              
February 2016 [Member] | Absolute TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award 15.00%              
Grant Date Fair Value by Component ($ in millions) $ 0.2              
Volatility 25.00%              
Interest Rate 0.71%              
Dividend Yield 3.00%              
February 2016 [Member] | EBITDA Comparison [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Percentage of Total Award 15.00%              
Grant Date Fair Value by Component ($ in millions) $ 0.4              
Volatility 25.00%              
Interest Rate 0.71%              
Dividend Yield 3.00%              
Minimum [Member] | December 2013 [Member] | Relative TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Interest Rate         0.34%      
Minimum [Member] | December 2013 [Member] | Absolute TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Interest Rate         0.34%      
Maximum [Member] | December 2013 [Member] | Relative TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Interest Rate         2.25%      
Maximum [Member] | December 2013 [Member] | Absolute TSR [Member] | Performance Shares [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                
Interest Rate         2.25%      
[1] Amounts round to zero.