Taxes on Income - Summary of Income Tax Provision for Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Dec. 28, 2013	Jan. 05, 2013	Jan. 03, 2015	Mar. 30, 2013
Currently payable:
Federal	$ 3,897us-gaap_CurrentFederalTaxExpenseBenefit		$ 27,015us-gaap_CurrentFederalTaxExpenseBenefit	$ 17,056us-gaap_CurrentFederalTaxExpenseBenefit
State	510		777	2,490
Total currently payable	4,407us-gaap_CurrentIncomeTaxExpenseBenefit		27,792us-gaap_CurrentIncomeTaxExpenseBenefit	19,546us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred:
Federal	531		3,362	(3,361)
State	(4,097)		175	(760)
Total deferred	(3,566)us-gaap_DeferredIncomeTaxExpenseBenefit	4,087us-gaap_DeferredIncomeTaxExpenseBenefit	3,537us-gaap_DeferredIncomeTaxExpenseBenefit	(4,121)us-gaap_DeferredIncomeTaxExpenseBenefit
Total	$ 841us-gaap_IncomeTaxExpenseBenefit	$ 10,352us-gaap_IncomeTaxExpenseBenefit	$ 31,329us-gaap_IncomeTaxExpenseBenefit	$ 15,425us-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.