Fair Value Measurements Fair Value Measurements (Details) - USD ($)	Dec. 25, 2016	Sep. 25, 2016	Mar. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, Long-term and Short-term, Combined Amount	$ 599,417,000	$ 617,167,000
Warrant liability fair value	8,665,000		$ 16,930,000
1st Lien Agreement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt, Fair Value	84,100,000
Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt, Fair Value	405,000,000
Debt, Long-term and Short-term, Combined Amount	385,000,000	385,000,000
New Second Lien Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, Long-term and Short-term, Combined Amount	130,433,000	$ 130,863,000
2nd Lien Agreement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt, Fair Value	$ 139,000,000