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Interest Rate Margin- The percentage points added to the Base Interest Rate to arrive at the stated rate of interest in the debt agreement.

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Liquidity- Amount of cash availble for immediate use of the company including: cash and cash equivalents, current borrowing capacity under a revolver, etc.

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Warrant liability fair value

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Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of the required periodic payments applied to principal.

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Percentage of principal amount of debt redeemed.

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No definition available.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Weighted average interest rate of debt outstanding.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Debt Schedule of Long-Term Debt Instruments (Details) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 27, 2016	Mar. 27, 2016	Dec. 27, 2015	Sep. 27, 2015	Mar. 31, 2014	Mar. 30, 2014
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense	$ 28,713,000	$ 28,713,000
Amortization of Financing Costs	1,844,000	3,080,000
Warrant liability fair value	$ 4,230,000	$ 4,230,000	$ 4,167,000	$ 4,240,000		$ 16,930,000
Debt, Weighted Average Interest Rate	9.60%	9.60%
Debt, Long-term and Short-term, Combined Amount	$ 656,498,000	$ 656,498,000		725,872,000
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	18,900,000	18,900,000
Long-term Debt, Maturities, Repayments of Principal in Year Two	25,000,000	25,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Three	25,000,000	25,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Four	66,337,000	66,337,000
Long-term Debt, Maturities, Repayments of Principal in Year Five	0	0
Long-term Debt, Maturities, Repayments of Principal after Year Five	521,261,000	521,261,000
Long-term Debt, Current Maturities	31,400,000	31,400,000		25,000,000
Long-term Debt	625,098,000	625,098,000		700,872,000
Liquidity	49,403,000	49,403,000
Future Liquidity- Warrant Exercise Proceeds		25,140,000
Revolving Line Of Credit [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount	$ 0	$ 0		0
Debt Instrument, Interest Rate, Stated Percentage	5.65%	5.65%
Line of Credit Facility, Remaining Borrowing Capacity	$ 32,935,000	$ 32,935,000
Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	40,000,000	40,000,000
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 400,000,000	$ 400,000,000
Debt Instrument, Interest Rate at Period End	9.50%	9.50%
Debt, Long-term and Short-term, Combined Amount	$ 385,000,000	$ 385,000,000		400,000,000
Debt Instrument, Interest Rate, Stated Percentage	9.50%	9.50%
New 1st Lien Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 250,000,000	$ 250,000,000
Debt, Long-term and Short-term, Combined Amount	$ 135,237,000	$ 135,237,000		180,872,000
Debt Instrument, Interest Rate, Stated Percentage	7.25%	7.25%
Debt Instrument, Unamortized Discount					$ 5,000,000
New Second Lien Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 150,000,000	$ 150,000,000
Debt Instrument, Interest Rate at Period End	12.00%	12.00%
Debt, Long-term and Short-term, Combined Amount	$ 136,261,000	$ 136,261,000		$ 145,000,000
Debt Instrument, Interest Rate, Stated Percentage	12.00%	12.00%
Federal Funds Rate [Member] \| Revolving Line Of Credit [Member]
Debt Instrument [Line Items]
Interest Rate Margin	4.50%	4.50%
Federal Funds Rate [Member] \| New 1st Lien Term Loan [Member]
Debt Instrument [Line Items]
Base Interest Rate	0.50%	0.50%
Interest Rate Margin	5.25%	5.25%
Prime Lending Rate [Member] \| New 1st Lien Term Loan [Member]
Debt Instrument [Line Items]
Base Interest Rate	2.00%	2.00%
30 Day LIBOR [Member] \| Revolving Line Of Credit [Member]
Debt Instrument [Line Items]
Interest Rate Margin	5.50%	5.50%
30 Day LIBOR [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Base Interest Rate	0.50%	0.50%
30 Day LIBOR [Member] \| New 1st Lien Term Loan [Member]
Debt Instrument [Line Items]
Base Interest Rate	1.00%	1.00%
Interest Rate Margin	6.25%	6.25%
Until March 31, 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		112.00%
Prior to March 15, 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		109.50%
March 16, 2018 through March 15, 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		104.75%
March 15, 2019 through March 14, 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		102.38%
After March 15, 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		100.00%
March 31, 2017 through March 31, 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		0.00%
March 31, 2018 through March 31, 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		103.00%
After March 31, 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		0.00%
Mandatory Payment [Member] \| 1st Lien Agreement [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt	$ 6,250,000