CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Dec. 28, 2013	Jan. 05, 2013	Jan. 03, 2015	Mar. 30, 2013
Cash flows from operating activities
Net earnings	$ 741us-gaap_NetIncomeLoss	$ 19,708us-gaap_NetIncomeLoss	$ 58,596us-gaap_NetIncomeLoss	$ 27,410us-gaap_NetIncomeLoss
Loss from discontinued operations, net of tax	488	195	524	432
Earnings from continuing operations	1,229	19,903	59,120	27,842
Adjustments to reconcile net earnings to net cash provided by operating activities:
Restructuring and asset impairment charges	15,644	356	6,166	1,589
Convertible debt interest		2,903		3,282
Loss on debt extinguishment	5,527	2,285		5,047
Depreciation and amortization	37,270	29,434	88,475	38,854
LIFO expense	928	984	5,603	335
Postretirement benefits expense	1,492	832	2,686	651
Deferred taxes on income	(3,566)us-gaap_DeferredIncomeTaxExpenseBenefit	4,087us-gaap_DeferredIncomeTaxExpenseBenefit	3,537us-gaap_DeferredIncomeTaxExpenseBenefit	(4,121)us-gaap_DeferredIncomeTaxExpenseBenefit
Stock-based compensation expense	6,951us-gaap_ShareBasedCompensation	3,250us-gaap_ShareBasedCompensation	6,939us-gaap_ShareBasedCompensation	4,062us-gaap_ShareBasedCompensation
Excess tax benefit on stock compensation	(178)	(260)	(699)	(299)
Other, net	(870)us-gaap_OtherNoncashIncomeExpense	(333)us-gaap_OtherNoncashIncomeExpense	(213)us-gaap_OtherNoncashIncomeExpense	(276)us-gaap_OtherNoncashIncomeExpense
Changes in operating assets and liabilities:
Accounts receivable	40,292	8,346	(517)	(1,941)
Inventories	30,791us-gaap_IncreaseDecreaseInInventories	(33,621)us-gaap_IncreaseDecreaseInInventories	6,004us-gaap_IncreaseDecreaseInInventories	(23,750)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets	3,787	2,037	13,292	6,936
Accounts payable	(37,248)	10,066	(29,231)	12,984
Accrued payroll and benefits	(23,822)	(5,045)	(8,401)	(325)
Postretirement benefit payments	(2,964)	(4,406)	(4,155)	(4,514)
Accrued income taxes	(10,688)	(12,352)	(3,225)	(3,038)
Other accrued expenses and other liabilities	186	(1,170)	(6,308)	(3,977)
Net cash provided by operating activities	64,761	27,296	139,073	59,341
Cash flows from investing activities
Purchases of property and equipment	(37,200)	(33,932)	(90,012)	(42,012)
Net proceeds from the sale of assets	1,330	2,440	11,008	2,440
Acquisitions, net of cash acquired	(20,647)	(13,720)		(13,720)
Loans to customers	(58)us-gaap_PaymentsForAdvanceToAffiliate		(6,429)us-gaap_PaymentsForAdvanceToAffiliate
Payments from customers on loans	224		3,653
Other	(819)	339	93	236
Net cash used in investing activities	(57,170)	(44,873)	(81,687)	(53,056)
Cash flows from financing activities
Proceeds from revolving credit facility	877,033us-gaap_ProceedsFromLinesOfCredit	366,545us-gaap_ProceedsFromLinesOfCredit	1,062,173us-gaap_ProceedsFromLinesOfCredit	504,468us-gaap_ProceedsFromLinesOfCredit
Payments on revolving credit facility	(812,239)us-gaap_RepaymentsOfLinesOfCredit	(352,696)us-gaap_RepaymentsOfLinesOfCredit	(1,079,654)us-gaap_RepaymentsOfLinesOfCredit	(456,818)us-gaap_RepaymentsOfLinesOfCredit
Share repurchase		(11,381)	(4,987)	(11,381)
Proceeds from long-term borrowings		9,679		9,679
Repurchase of convertible notes				(57,973)us-gaap_RepaymentsOfConvertibleDebt
Repayment of other long-term debt	(53,988)us-gaap_RepaymentsOfOtherLongTermDebt	(4,440)us-gaap_RepaymentsOfOtherLongTermDebt	(20,353)us-gaap_RepaymentsOfOtherLongTermDebt	(5,265)us-gaap_RepaymentsOfOtherLongTermDebt
Financing fees paid	(9,437)us-gaap_PaymentsOfFinancingCosts	(2,721)us-gaap_PaymentsOfFinancingCosts	(870)us-gaap_PaymentsOfFinancingCosts	(2,721)us-gaap_PaymentsOfFinancingCosts
Excess tax benefit on stock compensation	178	260	699	299
Proceeds from sale of common stock	310	325	1,120	398
Dividends paid	(5,908)us-gaap_PaymentsOfDividendsCommonStock	(5,159)us-gaap_PaymentsOfDividendsCommonStock	(18,090)us-gaap_PaymentsOfDividendsCommonStock	(6,899)us-gaap_PaymentsOfDividendsCommonStock
Net cash (used in) provided by financing activities	(4,051)	412	(59,962)	(26,213)
Cash flows from discontinued operations
Net cash used in operating activities	(421)	(351)	(197)	(451)
Net cash used in discontinued operations	(421)	(351)	(197)	(451)
Net (decrease) increase in cash and cash equivalents	3,119	(17,516)	(2,773)	(20,379)
Cash and cash equivalents at beginning of period	6,097	26,476	9,216	26,476
Cash and cash equivalents at end of period	9,216	8,960	6,443	6,097
Supplemental Cash Flow Information:
Cash paid for interest	7,765us-gaap_InterestPaidNet	7,038us-gaap_InterestPaidNet	22,990us-gaap_InterestPaidNet	9,422us-gaap_InterestPaidNet
Cash paid for income taxes	$ 13,951us-gaap_IncomeTaxesPaid	$ 10,240us-gaap_IncomeTaxesPaid	$ 27,429us-gaap_IncomeTaxesPaid	$ 10,240us-gaap_IncomeTaxesPaid

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The cash outflow from advancing money to an affiliate (an entity that is related but not strictly controlled by the entity).

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The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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The cash outflow to reacquire common stock during the period.

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Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

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The cash outflow for loan and debt issuance costs.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The amount of pension and other (such as medical, dental and life insurance) postretirement benefit costs recognized during the period for (1) defined benefit plans (periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss) on assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments) and for (2) defined contribution plans (to the extent that a plan's defined contributions to an individual's account are to be made for periods in which that individual renders services, the net cost for a period is the contribution called for in that period; if a plan calls for contributions for periods after an individual retires or terminates, the estimated cost is accrued during the employee's service period).

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The cash inflow from the collection of money previously advanced to an entity that is related to it but not strictly controlled.

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The cash inflow from the additional capital contribution to the entity.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash outflow attributable to repayments of borrowings not otherwise defined in the taxonomy (with maturities initially due after one year or beyond the operating cycle if longer).

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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