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Share-Based Compensation - Narrative (Detail) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Aug. 02, 2017
Feb. 22, 2017
Jan. 03, 2017
Sep. 02, 2016
Aug. 03, 2016
Feb. 24, 2016
Jan. 04, 2016
Dec. 29, 2017
Dec. 30, 2016
Jan. 01, 2016
Dec. 26, 2014
Apr. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Proceeds from stock options exercised               $ 1.6 $ 12.2 $ 35.3    
Total intrinsic value of options exercised               1.2 13.6      
Total fair value of options granted               0.0 0.0      
Total fair value of options vested               $ 0.9 $ 3.3      
Total fair value of options vested, weighted average fair value (usd per share)               $ 7.52 $ 8.13      
Total remaining unrecognized compensation cost related to non-vested stock options               $ 0.1        
Compensation cost not yet recognized, period for recognition               3 months 18 days        
RSUs/PSUs                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Total remaining unrecognized compensation cost related to non-vested stock options               $ 18.2        
Compensation cost not yet recognized, period for recognition               2 years        
Number of shares awarded (shares)               208,743 427,624 471,767    
Price per share (usd per share)               $ 54.17 $ 49.91 $ 36.44    
RSUs/PSUs outstanding (shares)               761,152 932,036 988,542 675,932  
Restricted Stock Units (RSUs)                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Award vesting rights               20.00%        
PUs                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Award vesting rights               33.00%        
Maximum | Restricted Stock Units (RSUs)                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Percent of award units granted, range               100.00%        
Minimum | Restricted Stock Units (RSUs)                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Percent of award units granted, range               0.00%        
2014 Omnibus Share Incentive Plan (2014 Plan)                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Maximum number of ordinary shares that may be covered by awards (shares)                       3,000,000
2014 Omnibus Share Incentive Plan (2014 Plan) | Restricted Stock Units (RSUs)                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Number of shares awarded (shares) 48,700 100,000   50,000 226,500 50,000            
Price per share (usd per share) $ 49.75 $ 56.52   $ 58.94 $ 59.83 $ 38.99            
2011 Omnibus Share Incentive Plan                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Maximum number of ordinary shares that may be granted to a single participant (shares)               0 0 0    
2011 Omnibus Share Incentive Plan | Stock options                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Options, expiration period               10 years        
Award vesting period               4 years        
Share Incentive Plan 1999                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Maximum number of ordinary shares that may be granted to a single participant (shares)               0        
Share Incentive Plan 1999 | Stock options                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Options, expiration period               10 years        
Award vesting period               4 years        
Non Employee Directors Plan                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Maximum number of ordinary shares that may be granted to a single participant (shares)               0        
Non Employee Directors Plan | Stock options                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Options, expiration period               10 years        
Award vesting period               4 years        
Non Employee Directors Plan | Restricted Stock                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Number of shares awarded (shares)     14,294       22,946          
Price per share (usd per share)     $ 61.21       $ 38.13          
Immediate Vesting | Restricted Stock                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Award vesting rights               50.00%        
Immediate Vesting | 2011 Omnibus Share Incentive Plan | Stock options                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Award vesting rights               20.00%        
Immediate Vesting | Share Incentive Plan 1999 | Stock options                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Award vesting rights               20.00%        
Immediate Vesting | Non Employee Directors Plan | Stock options                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Award vesting rights               20.00%        
Six-month Anniversary Upon Ceasing to be Member of Board of Directors | Restricted Stock                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Award vesting period               6 months