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Long-Term Debt (Details) (USD $)	6 Months Ended				8 Months Ended			6 Months Ended		8 Months Ended					6 Months Ended		3 Months Ended
	Jun. 26, 2013	Jun. 27, 2012	Apr. 30, 2013	Apr. 13, 2012	Dec. 25, 2013 Credit Facility Due April 2018 [Member]	Dec. 25, 2013 Credit Facility Due April 2018 [Member]	Apr. 24, 2013 Credit Facility Due April 2018 [Member]	Jun. 26, 2013 Credit Facility Due April 2018 [Member] Secured Debt [Member]	Apr. 24, 2013 Credit Facility Due April 2018 [Member] Secured Debt [Member]	Dec. 25, 2013 Credit Facility Due April 2018 [Member] Senior secured revolver [Member]	Jun. 26, 2013 Credit Facility Due April 2018 [Member] Senior secured revolver [Member]	Apr. 24, 2013 Credit Facility Due April 2018 [Member] Senior secured revolver [Member]	Jun. 26, 2013 Credit Facility Due April 2018 [Member] Letter of Credit [Member]	Apr. 24, 2013 Credit Facility Due April 2018 [Member] Letter of Credit [Member]	Jun. 26, 2013 Credit Facility Due April 2017 [Member]	Apr. 13, 2012 Credit Facility Due April 2017 [Member]	Mar. 27, 2013 Credit Facility Due April 2017 [Member] Secured Debt [Member]	Dec. 26, 2012 Credit Facility Due April 2017 [Member] Secured Debt [Member]	Apr. 30, 2013 Interest Rate Swaps 2015-2017 [Member]	Apr. 30, 2013 Interest Rate Swaps 2017-2018 [Member]
Line of Credit Facility [Line Items]
Aggregate principal amount as per new credit facility							$ 250,000,000
Line of Credit Facility, Current Borrowing Capacity									60,000,000			190,000,000		30,000,000
Commitment fee for unused portion of revolving credit facility (in hundredths)										0.35%
Basis spread on variable rate debt									2.00%
Accordion feature that allows increase in size of facility							300,000,000
Maturity date						Apr. 24, 2018
Debt Instrument, Periodic Amortization, Principal, Years One and Two						5.00%
Debt Instrument, Periodic Amortization, Principal, Years Three and Four						7.50%
Debt Instrument, Periodic Amortization, Principal, Year Five						10.00%
Loss on early extinguishment of debt	1,687,000	8,152,000													1,200,000
Debt transaction costs															400,000
Write off of deferred financing costs															800,000
Outstanding amount under credit facility								59,300,000			97,500,000
Outstanding amount of letters of credit													25,200,000
Availability under the revolving facility											67,300,000
Weighted-average interest rate under the term loan (in hundredths)								2.20%			2.21%							2.97%
Repayments of term loan under the credit facility								800,000									4,000,000
Interest rate cap, description of variable rate basis					LIBOR										LIBOR
Interest rate cap, basis spread on variable rate							2.00%									2.00%
Interest rate cap, notional amount 2012-2013				150,000,000
Interest rate cap, notional amount 2013-2014				125,000,000
Interest rate cap, notional amount 2014-2015			150,000,000
Interest rate swaps notional amount																			$ 150,000,000	$ 140,000,000
Average fixed interest rate on interest rate swaps																			3.12%	3.12%

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Annual amortization percentage of the original principal balance of term loan debt required to be paid in year five.

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Annual amortization percentage of the original principal balance of term loan debt required to be paid in years one and two.

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Annual amortization percentage of the original principal balance of term loan debt required to be paid in years three and four.

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Aggregate notional amount specified in the interst rate cap for 2012-2013.

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Aggregate notional amount specified in the interst rate cap for 2014-2015.

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The percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Average fixed interest rate related to the group of interest rate derivatives.

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The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

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The reference rate for the variable rate of the interest rate derivative, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount borrowed under the credit facility as of the balance sheet date.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of long-term debt outstanding by type or by instrument at that time.

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Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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