Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Statutory Income Tax Rates to Effective Income Tax Rates (Detail)

v3.8.0.1
Income Taxes - Reconciliation of Statutory Income Tax Rates to Effective Income Tax Rates (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]        
Unrecognized Tax Benefits $ (1,101) $ (2,060) $ (374) $ (435)
Statutory federal income tax rate 35.00% 35.00% 35.00%  
Non-U.S. taxes and the impact of non-U.S. losses for which a current tax benefit is not available 6.90% 8.10% (0.80%)  
State and local income taxes, net of U.S. federal income tax benefit 3.40% 2.80% 2.60%  
Adjustment of reserve for change in valuation allowance and other items (6.50%) 0.50% (0.70%)  
Adjustment for change in tax law 281.40% (3.10%) 0.00%  
Adjustment of unrecognized tax benefits 1.40% (7.70%) 0.00%  
Permanent differences:        
Acquisition and related transaction costs 0.00% (0.30%) (0.20%)  
Meals and entertainment expense (0.90%) (0.90%) (0.40%)  
Foreign tax credit 0.00% 0.30% 0.00%  
Reconciliation of tax provision to return (1.70%) (0.30%) (0.70%)  
Reconciliation of other adjustments 0.90% 0.70% 0.00%  
Effective income tax rate 323.30% 35.10% 34.80%