Indebtedness and Interest Expense - Interest Expense (Details) - USD ($) $ in Thousands		2 Months Ended	3 Months Ended			7 Months Ended		9 Months Ended
		Feb. 14, 2014	Sep. 27, 2015	Sep. 28, 2014	Jun. 29, 2014	Sep. 28, 2014		Sep. 27, 2015
Successor [Member]
Debt Instrument [Line Items]
Amortization of debt issuance costs			$ 1,002	$ 1,001		$ 2,487		$ 3,004
Interest Expense, Other Long-term Debt			114	(322)		(366)		648
Interest expense			17,209		$ 15,974	43,256		52,031
Successor [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Interest Expense, Debt	[1]		7,724	8,725		21,586		23,229
Successor [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Interest expense, excluding amortization			5,157	5,169		12,592		15,470
Successor [Member] | Predecessor Facility [Member]
Debt Instrument [Line Items]
Interest expense, excluding amortization						0		0
Successor [Member] | Bridge Loan [Member]
Debt Instrument [Line Items]
Interest expense, excluding amortization						4,943	[2]	0
Successor [Member] | Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Capital Leases, Income Statement, Interest Expense			447	469		1,082		1,349
Successor [Member] | Sale Leaseback Obligations [Member]
Debt Instrument [Line Items]
InterestExpenseSaleLeaseback			$ 2,765	$ 932		932		$ 8,331
Predecessor [Member]
Debt Instrument [Line Items]
Amortization of debt issuance costs		$ 58
Interest Expense, Other Long-term Debt		73
Interest expense		1,151
Predecessor [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Interest Expense, Debt	[1]	0
Predecessor [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Interest expense, excluding amortization		0
Predecessor [Member] | Predecessor Facility [Member]
Debt Instrument [Line Items]
Interest expense, excluding amortization		745
Predecessor [Member] | Bridge Loan [Member]
Debt Instrument [Line Items]
Interest expense, excluding amortization		0
Predecessor [Member] | Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Capital Leases, Income Statement, Interest Expense		275
Predecessor [Member] | Sale Leaseback Obligations [Member]
Debt Instrument [Line Items]
InterestExpenseSaleLeaseback		$ 0
Bridge Loan Facility [Member]
Debt Instrument [Line Items]
Interest Expense, Debt						4,900
Bridge Loan Facility [Member] | Bridge Loan [Member]
Debt Instrument [Line Items]
Interest Expense, Debt						$ 200
London Interbank Offered Rate (LIBOR) [Member] | The Senior Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Debt Instrument, Additional Margin on Basis Spread of Variable Rate		3.00%

[1] Includes amortization of original issue discount.

[2] The 226 day period ended September 28, 2014 includes Bridge Loan debt issuance costs of $4.7 million and interest of $0.2 million.