Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Dec. 25, 2014	Dec. 26, 2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 18,941us-gaap_NetIncomeLoss	$ (5,144)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	25,282us-gaap_DepreciationAndAmortization	28,679us-gaap_DepreciationAndAmortization
Impairment charges	1,115us-gaap_OtherAssetImpairmentCharges	829us-gaap_OtherAssetImpairmentCharges
Provision for deferred income taxes	11,567us-gaap_DeferredIncomeTaxExpenseBenefit	(2,983)us-gaap_DeferredIncomeTaxExpenseBenefit
Stock-based compensation expense	1,054us-gaap_ShareBasedCompensation	924us-gaap_ShareBasedCompensation
Other	528us-gaap_OtherNoncashIncomeExpense	1,404us-gaap_OtherNoncashIncomeExpense
Changes in operating assets and liabilities:
Receivables	(1,674)	5,787
Inventories	20,648us-gaap_IncreaseDecreaseInInventories	(1,898)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other current assets	1,815	448
Accounts payable	(11,465)	(10,973)
Other current liabilities	(5,914)	(5,272)
Other noncurrent assets and liabilities, net	(263)	(1,168)
Net cash provided by operating activities	61,634	10,633
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property and equipment	(17,393)	(31,748)
Proceeds from dispositions of property and equipment	1,326	2,003
Payments for (Proceeds from) Other Investing Activities	1,673	0
Net cash used in investing activities	(17,740)	(29,745)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of long-term debt, including redemption premiums	(638)us-gaap_RepaymentsOfLongTermDebt	(638)us-gaap_RepaymentsOfLongTermDebt
Repayments of lease finance obligations	(2,853)	(4,511)
Other	948	(401)
Net cash used in financing activities	(2,543)	(5,550)
Net decrease in cash and cash equivalents	41,351	(24,662)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	81,652	57,168
CASH AND CASH EQUIVALENTS, END OF PERIOD	123,003	32,506
Cash paid (received) during the period:
Interest	15,237us-gaap_InterestPaidNet	16,962us-gaap_InterestPaidNet
Income taxes	(148)us-gaap_IncomeTaxesPaidNet	(51)us-gaap_IncomeTaxesPaidNet
Non-cash investing and financing activities:
Capital expenditures financed through capital leases	650us-gaap_CapitalLeaseObligationsIncurred	415us-gaap_CapitalLeaseObligationsIncurred
Accrued purchases of property and equipment	$ 10,223	$ 10,705

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration