Significant Components of Net Deferred Income Taxes (Detail) - USD ($) $ in Thousands	Jan. 03, 2016	Dec. 28, 2014
Components Of Deferred Income Tax Assets And Liabilities [Line Items]
Insurance reserves	$ 10,202	$ 10,359
Equity compensation	12,040	11,697
Other accruals and reserves	14,411	12,161
Bad debt reserves	1,232	1,675
Valuation allowance	(155)	(456)
Other	5,409	5,082
Total deferred Federal income tax assets		42,993
Depreciation, amortization and asset basis differences	3,667	899
Capitalized software	21,398	16,628
Gain on debt extinguishments	13,609	18,146
Other	288	576
Total deferred Federal income tax liabilities	38,962	36,249
Net deferred income taxes	5,865	6,744
Internal Revenue Service (IRS) [Member]
Components Of Deferred Income Tax Assets And Liabilities [Line Items]
Total deferred Federal income tax assets	43,139	40,518
Domestic Tax Authority [Member]
Components Of Deferred Income Tax Assets And Liabilities [Line Items]
Net deferred income taxes	4,177	4,269
State and Local Jurisdiction [Member]
Components Of Deferred Income Tax Assets And Liabilities [Line Items]
Net deferred income taxes	$ 1,688	$ 2,475