Components of Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Components Of Income Tax Expense Benefit [Line Items]
Current Taxes: Federal	$ 72,780us-gaap_CurrentFederalTaxExpenseBenefit	$ 73,669us-gaap_CurrentFederalTaxExpenseBenefit	$ 54,599us-gaap_CurrentFederalTaxExpenseBenefit
Current Taxes: State	10,294	11,325	6,602
Current Taxes: Total	83,074us-gaap_CurrentIncomeTaxExpenseBenefit	84,994us-gaap_CurrentIncomeTaxExpenseBenefit	61,201us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred Taxes: Federal	7,691	7,970	9,703
Deferred Taxes: State	1,550	(1,485)	1,747
Deferred Income Taxes, Total	9,241us-gaap_DeferredIncomeTaxExpenseBenefit	6,485us-gaap_DeferredIncomeTaxExpenseBenefit	11,450us-gaap_DeferredIncomeTaxExpenseBenefit
Income tax expense	$ 92,315us-gaap_IncomeTaxExpenseBenefit	$ 91,479us-gaap_IncomeTaxExpenseBenefit	$ 72,651us-gaap_IncomeTaxExpenseBenefit

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

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

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

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

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

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.