Significant Components of Net Deferred Income Taxes (Detail) - USD ($) $ in Thousands	Dec. 29, 2019	Dec. 30, 2018
Deferred income tax assets
Other accruals and reserves	$ 11,874	$ 10,636
Insurance reserves	11,256	10,253
Equity compensation	10,357	9,705
Foreign tax credit	9,333	4,600
Other	6,980	6,029
Deferred income tax assets before valuation allowance	49,800	41,223
Less: Valuation allowance	(4,280)
Total deferred income tax assets	45,520	41,223
Deferred income tax liabilities
Depreciation, amortization and asset basis differences	8,117	10,505
Capitalized software	27,330	25,192
Total deferred income tax liabilities	35,447	35,697
Net deferred income tax assets	$ 10,073	$ 5,526