Debt Schedule Of Financing Fees (Details) - USD ($)	3 Months Ended
	Dec. 25, 2016	Dec. 27, 2015	Sep. 25, 2016	Mar. 31, 2014	Mar. 30, 2014
Schedule Of Financing Fees [Line Items]
Class of Warrant or Right, Outstanding	6,000,000
Unamortized Debt Issuance Expense	$ 25,373,000		$ 26,271,000
Amortization Of Present Value Discount- Current Fiscal Year	4,142,000
Amortization Of Present Value Discount- Next Fiscal Year	4,223,000
Amortization Of Present Value Discount- Year 3	4,050,000
Amortization Of Present Value Discount- Year 4	4,079,000
Amortization Of Present Value Discount- Year 5	$ 4,269,000
Investment Warrants, Exercise Price	$ 4.19
Warrant liability fair value	$ 8,665,000				$ 16,930,000
Gains (Losses) on Extinguishment of Debt	$ 0	$ (525,000)
New 1st Lien Term Loan [Member]
Schedule Of Financing Fees [Line Items]
Debt Instrument, Unamortized Discount				$ 5,000,000