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Share-Based Compensation - Stock Options - Outstanding and Exercisable (Detail) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 29, 2017
Dec. 30, 2016
Jan. 01, 2016
Dec. 26, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 25.00 $ 25.64 $ 25.65 $ 26.41
Outstanding (shares) 218,850 282,850 760,503 2,115,606
Outstanding Intrinsic Value $ 4.9      
Exercisable (shares) 186,650 126,250 202,303  
Exercisable Intrinsic Value $ 4.3      
Range 1        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 14.77      
Remaining Contractual Life 1 year 4 months      
Outstanding (shares) 24,000      
Outstanding Intrinsic Value $ 0.8      
Exercisable (shares) 24,000      
Exercisable Intrinsic Value $ 0.8      
Range 2        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 19.83      
Remaining Contractual Life 1 year 1 month 24 days      
Outstanding (shares) 6,250      
Outstanding Intrinsic Value $ 0.2      
Exercisable (shares) 6,250      
Exercisable Intrinsic Value $ 0.2      
Range 3        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 21.72      
Remaining Contractual Life 1 year 6 months 30 days      
Outstanding (shares) 13,000      
Outstanding Intrinsic Value $ 0.3      
Exercisable (shares) 13,000      
Exercisable Intrinsic Value $ 0.3      
Range 4        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 22.25      
Remaining Contractual Life 6 months 29 days      
Outstanding (shares) 21,000      
Outstanding Intrinsic Value $ 0.5      
Exercisable (shares) 21,000      
Exercisable Intrinsic Value $ 0.5      
Range 5        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 23.76      
Remaining Contractual Life 3 years 7 months 2 days      
Outstanding (shares) 11,000      
Outstanding Intrinsic Value $ 0.3      
Exercisable (shares) 11,000      
Exercisable Intrinsic Value $ 0.3      
Range 6        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 24.29      
Remaining Contractual Life 4 years 7 months      
Outstanding (shares) 23,000      
Outstanding Intrinsic Value $ 0.5      
Exercisable (shares) 23,000      
Exercisable Intrinsic Value $ 0.5      
Range 7        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 26.52      
Remaining Contractual Life 5 years 1 month 19 days      
Outstanding (shares) 32,200      
Outstanding Intrinsic Value $ 0.7      
Exercisable (shares) 32,200      
Exercisable Intrinsic Value $ 0.7      
Range 8        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 28.01      
Remaining Contractual Life 5 years 6 months 30 days      
Outstanding (shares) 17,150      
Outstanding Intrinsic Value $ 0.3      
Exercisable (shares) 17,150      
Exercisable Intrinsic Value $ 0.3      
Range 9        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 28.09      
Remaining Contractual Life 5 years 6 months 30 days      
Outstanding (shares) 600      
Outstanding Intrinsic Value $ 0.0      
Exercisable (shares) 600      
Exercisable Intrinsic Value $ 0.0      
Range 10        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 28.89      
Remaining Contractual Life 6 years 3 months 29 days      
Outstanding (shares) 64,400      
Outstanding Intrinsic Value $ 1.2      
Exercisable (shares) 32,200      
Exercisable Intrinsic Value $ 0.6      
Range 11        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Exercise Price (usd per share) $ 33.97      
Remaining Contractual Life 1 month 26 days      
Outstanding (shares) 6,250      
Outstanding Intrinsic Value $ 0.1      
Exercisable (shares) 6,250      
Exercisable Intrinsic Value $ 0.1