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Debt Schedule of Long-Term Debt Instruments (Details) - USD ($) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 24, 2017 | Jun. 25, 2017 | Mar. 26, 2017 | Dec. 25, 2016 | Sep. 25, 2016 | Sep. 24, 2017 | Sep. 25, 2016 | Sep. 27, 2015 | Mar. 31, 2014 | Mar. 30, 2014
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Unamortized Debt Issuance Expense | $ 21,824,000 |  |  |  |  | $ 21,824,000 |  |  |  |
Payments of Financing Costs |  |  |  |  |  | $ 373,000 | $ 422,000 | $ 733,000 |  |
Debt, Weighted Average Interest Rate | 9.90% |  |  |  |  | 9.90% |  |  |  |
Debt, Long-term and Short-term, Combined Amount | $ 548,385,000 |  |  |  | $ 617,167,000 | $ 548,385,000 | 617,167,000 |  |  |
Debt Financing and Reorganization Costs Paid |  |  |  |  |  | 373,000 | 422,000 | 733,000 |  |
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year | 30,182,000 |  |  |  |  | 30,182,000 |  |  |  |
Long-term Debt, Maturities, Repayments of Principal in Year Two | 20,145,000 |  |  |  |  | 20,145,000 |  |  |  |
Long-term Debt, Maturities, Repayments of Principal in Year Three | 0 |  |  |  |  | 0 |  |  |  |
Long-term Debt, Maturities, Repayments of Principal in Year Four | 0 |  |  |  |  | 0 |  |  |  |
Long-term Debt, Maturities, Repayments of Principal in Year Five | 385,000,000 |  |  |  |  | 385,000,000 |  |  |  |
Long-term Debt, Current Maturities | 30,182,000 |  |  |  | 25,070,000 | 30,182,000 | 25,070,000 |  |  |
Long-term Debt | 496,379,000 |  |  |  | 565,826,000 | 496,379,000 | 565,826,000 |  |  |
Long-term Debt, Maturities, Repayments of Principal after Year Five | 113,058,000 |  |  |  |  | 113,058,000 |  |  |  |
Liquidity | $ 44,439,000 |  |  |  |  | 44,439,000 |  |  |  |
Repayments of Long-term Debt |  |  |  |  |  | $ 73,782,000 | 112,455,000 | 83,878,000 |  |
Class of Warrant or Right, Outstanding | 6,000,000 |  |  |  |  | 6,000,000 |  |  |  |
Investment Warrants, Exercise Price |  |  |  |  |  | $ 4.19 |  |  |  |
Warrant liability fair value | $ 1,580,000 |  |  |  | 11,760,000 | $ 1,580,000 | 11,760,000 | 4,240,000 |  | $ 16,930,000
Amortization of Financing Costs |  |  |  |  | 5,541,000 | 4,447,000 |  | $ 4,693,000 |  |
Future Liquidity- Warrant Exercise Proceeds |  |  |  |  |  | 25,140,000 |  |  |  |
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net | (21,824,000) |  |  |  | (26,271,000) | (21,824,000) | (26,271,000) |  |  |
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 | $ 385,000,000 | 385,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 10.00% |  |  |  |  | 10.00% |  |  |  |
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 | $ 45,145,000 |  |  |  | 101,304,000 | $ 45,145,000 | 101,304,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 7.00% |  |  |  |  | 7.00% |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  |  |  | $ 5,000,000 |
Repayments of Long-term Debt | $ 13,839,000 | $ 11,250,000 | $ 13,750,000 | $ 17,320,000 |  |  |  |  |  |
Line of Credit [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | 40,000,000 |  |  |  |  | $ 40,000,000 |  |  |  |
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 | $ 118,240,000 |  |  |  | 130,863,000 | $ 118,240,000 | 130,863,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 12.00% |  |  |  |  | 12.00% |  |  |  |
Common Stock Issued In Refinancing, Percent of Total On A Pro Forma Basis | 10.00% |  |  |  |  | 10.00% |  |  |  |
Class of Warrant or Right, Outstanding | 6,000,000 |  |  |  |  | 6,000,000 |  |  |  |
Revolving Line Of Credit [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt, Long-term and Short-term, Combined Amount | $ 0 |  |  |  | $ 0 | $ 0 | $ 0 |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 7.00% |  |  |  |  | 7.00% |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity | $ 33,818,000 |  |  |  |  | $ 33,818,000 |  |  |  |
2nd Lien Agreement [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Common Stock Issued In Refinancing, Percent of Total On A Pro Forma Basis | 13.00% |  |  |  |  | 13.00% |  |  |  |
Class of Warrant or Right, Outstanding | 6,743,640 |  |  |  |  | 6,743,640 |  |  |  |
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% |  |  |  |
Federal Funds Rate [Member] | Revolving Line Of Credit [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest Rate Margin | 4.50% |  |  |  |  | 4.50% |  |  |  |
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] | New 1st Lien Term Loan [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Base Interest Rate | 1.00% |  |  |  |  | 1.00% |  |  |  |
Interest Rate Margin | 6.25% |  |  |  |  | 6.25% |  |  |  |
30 Day LIBOR [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Base Interest Rate | 0.50% |  |  |  |  | 0.50% |  |  |  |
30 Day LIBOR [Member] | Revolving Line Of Credit [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest Rate Margin | 5.50% |  |  |  |  | 5.50% |  |  |  |
March 16, 2018 through March 15, 2019 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  |  |  | 104.80% |  |  |  |
March 15, 2019 through March 14, 2020 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  |  |  | 102.40% |  |  |  |
March 31, 2017 through March 31, 2018 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  |  |  | 110.00% |  |  |  |
March 31, 2018 through March 31, 2019 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  |  |  | 100.00% |  |  |  |
After March 31, 2019 [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  |  |  | 100.00% |  |  |  |
Mandatory Payment [Member] | New 1st Lien Term Loan [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Repayments of Long-term Debt | $ 6,250,000 | $ 6,250,000 | $ 6,250,000 | $ 6,250,000 |  |  |  |  |  |
Mandatory Payment [Member] | 1st Lien Agreement [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal | $ 6,250,000 |  |  |  |  |  |  |  |  |

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