Long-Term Obligations (Schedule Of Long-Term Obligations) (Details) (USD $)			3 Months Ended		3 Months Ended	6 Months Ended				3 Months Ended			3 Months Ended				3 Months Ended			3 Months Ended
	Mar. 30, 2014	Dec. 28, 2013	Mar. 30, 2014 Revolving Credit Facility [Member]	Dec. 28, 2013 Revolving Credit Facility [Member]	Mar. 30, 2014 Senior Secured First Lien Notes Payable Due 2019 [Member]	Jun. 28, 2013 Senior Secured First Lien Notes Payable Due 2019 [Member]	Dec. 28, 2013 Senior Secured First Lien Notes Payable Due 2019 [Member]	Mar. 30, 2014 Unamortized Discount On Senior Secured First Lien Notes Payable Due 2019 [Member]	Dec. 28, 2013 Unamortized Discount On Senior Secured First Lien Notes Payable Due 2019 [Member]	Mar. 30, 2014 Industrial Development Bonds 2013 [Member]	Mar. 30, 2014 Industrial Development Bonds, Due 2027 [Member]	Dec. 28, 2013 Industrial Development Bonds, Due 2027 [Member]	Mar. 30, 2014 State Of Ohio Assistance Loan At 6% [Member]	Dec. 28, 2013 State Of Ohio Assistance Loan At 6% [Member]	Mar. 30, 2014 State Of Ohio Loan At 1% Until July 2011, Then 3% Until May 2019 [Member]	Dec. 28, 2013 State Of Ohio Loan At 1% Until July 2011, Then 3% Until May 2019 [Member]	Mar. 30, 2014 State Of Ohio Loan At 3% Until May 2019 [Member]	Mar. 30, 2014 Columbia County, Wisconsin Municipal Debt Due December 2019 [Member]	Dec. 28, 2013 Columbia County, Wisconsin Municipal Debt Due December 2019 [Member]	Mar. 30, 2014 Senior Secured Second Lien Notes Payable Due 2020 [Member]	Dec. 28, 2013 Senior Secured Second Lien Notes Payable Due 2020 [Member]	Nov. 19, 2013 Senior Secured Second Lien Notes Payable Due 2020 [Member]	Mar. 30, 2014 Unamortized Discount On Senior Secured Second Lien Notes Payable Due 2020 [Member]	Dec. 28, 2013 Unamortized Discount On Senior Secured Second Lien Notes Payable Due 2020 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 599,700,000	$ 597,146,000	$ 11,100,000	$ 7,600,000	$ 333,325,000	$ 335,000,000	$ 334,162,000	$ (2,977,000)	$ (3,103,000)		$ 6,000,000	$ 6,000,000	$ 3,905,000	$ 4,175,000	$ 1,638,000	$ 1,712,000		$ 300,000	$ 300,000	$ 250,000,000	$ 250,000,000	$ 250,000,000	$ (3,591,000)	$ (3,700,000)
Less obligations due within one year	(11,709,000)	(4,734,000)
Long-term obligations, excluding the capital lease obligation	587,991,000	592,412,000
Revolving credit facility, interest rate			6.75%
Debt instrument interest rate					5.75%								6.00%				3.00%			9.00%		9.00%
Long-term debt average interest rate											0.30%
Debt instrument, maturity year					June 2019	June 2019				2027			May 2017				May 2019	December 2019		June 2020
Debt instrument, payment													$ 100,000				$ 30,000