Total Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 02, 2015	Jan. 03, 2014	Dec. 28, 2012
Current
Federal	$ 26,647us-gaap_CurrentFederalTaxExpenseBenefit	$ 22,468us-gaap_CurrentFederalTaxExpenseBenefit	$ 23,562us-gaap_CurrentFederalTaxExpenseBenefit
Foreign	896us-gaap_CurrentForeignTaxExpenseBenefit	1,411us-gaap_CurrentForeignTaxExpenseBenefit	852us-gaap_CurrentForeignTaxExpenseBenefit
State	5,798	4,824	4,304
Current Income Tax Expense	33,341us-gaap_CurrentIncomeTaxExpenseBenefit	28,703us-gaap_CurrentIncomeTaxExpenseBenefit	28,718us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred
Federal	(5,059)	(2,703)	(3,378)
State	(1,018)	(695)	(816)
Deferred Income Tax Expense	(6,077)us-gaap_DeferredIncomeTaxExpenseBenefit	(3,398)us-gaap_DeferredIncomeTaxExpenseBenefit	(4,194)us-gaap_DeferredIncomeTaxExpenseBenefit
Total	$ 27,264us-gaap_IncomeTaxExpenseBenefit	$ 25,305us-gaap_IncomeTaxExpenseBenefit	$ 24,524us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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