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Significant Components of Net Deferred Income Taxes (Detail) - USD ($)
$ in Thousands
Jan. 01, 2017
Jan. 03, 2016
Components Of Deferred Income Tax Assets And Liabilities [Line Items]    
Insurance reserves $ 11,202 $ 10,202
Equity compensation 11,978 12,040
Other accruals and reserves 18,741 14,411
Bad debt reserves 1,005 1,232
Valuation allowance (35) (155)
Other 5,767 5,409
Depreciation, amortization and asset basis differences 6,352 3,667
Capitalized software 25,869 21,398
Gain on debt extinguishments 9,073 13,609
Other   288
Total deferred Federal income tax liabilities 41,294 38,962
Net deferred income taxes 8,935 5,865
Internal Revenue Service (IRS) [Member]    
Components Of Deferred Income Tax Assets And Liabilities [Line Items]    
Total deferred Federal income tax assets 48,658 43,139
Domestic Tax Authority [Member]    
Components Of Deferred Income Tax Assets And Liabilities [Line Items]    
Net deferred income taxes 7,364 4,177
State and Local Jurisdiction [Member]    
Components Of Deferred Income Tax Assets And Liabilities [Line Items]    
Net deferred income taxes $ 1,571 $ 1,688