Debt Schedule of Payments (Details) - USD ($) $ in Thousands	3 Months Ended								9 Months Ended
	Sep. 27, 2015	Jun. 28, 2015	Mar. 29, 2015	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Jun. 28, 2015	Jun. 29, 2014
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt									$ 64,750	$ 832,500
1st Lien Agreement [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt							$ 10,000	$ 6,500
New 1st Lien Term Loan [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt	$ 14,150	$ 10,250	$ 10,250	$ 11,250	$ 6,250	$ 17,000
Mandatory Payment [Member] | 1st Lien Agreement [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt							3,000	3,000
Mandatory Payment [Member] | New 1st Lien Term Loan [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt	6,250	6,250	6,250	6,250	6,250	6,250
Voluntary Payment [Member] | 1st Lien Agreement [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt							5,500	3,350
Voluntary Payment [Member] | New 1st Lien Term Loan [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt	0	4,000	4,000	5,000	0	10,750
Excess Cash Flow Sweep [Member] | 1st Lien Agreement [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt							1,500	150
Excess Cash Flow Sweep [Member] | New 1st Lien Term Loan [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt	7,900	0	0	0
Payment Due To Asset Sale [Member] | 1st Lien Agreement [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt							$ 0	$ 0
Payment Due To Asset Sale [Member] | New 1st Lien Term Loan [Member]
Schedule Of Debt Payments [Line Items]
Repayments of Long-term Debt	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0