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Long-Term Debt (Details) (USD $)	12 Months Ended					12 Months Ended		12 Months Ended					8 Months Ended		8 Months Ended	12 Months Ended		8 Months Ended				12 Months Ended	3 Months Ended
	Dec. 25, 2013	Dec. 26, 2012	Dec. 28, 2011	Dec. 25, 2013 Interest Rate Cap [Member] Interest Rate Cap 2012-2013 [Member]	Apr. 13, 2012 Interest Rate Cap [Member] Interest Rate Cap 2012-2013 [Member]	Dec. 25, 2013 Interest Rate Cap [Member] Interest Rate Cap 2013-2014 [Member]	Apr. 13, 2012 Interest Rate Cap [Member] Interest Rate Cap 2013-2014 [Member]	Dec. 25, 2013 Interest Rate Cap [Member] Interest Rate Cap 2014-2015 [Member]	Apr. 30, 2013 Interest Rate Cap [Member] Interest Rate Cap 2014-2015 [Member]	Dec. 25, 2013 Interest Rate Swap [Member]	Apr. 30, 2013 Interest Rate Swap [Member] Interest Rate Swaps 2015-2017 [Member]	Apr. 30, 2013 Interest Rate Swap [Member] Interest Rate Swaps 2017-2018 [Member]	Dec. 25, 2013 Credit facility due April 2018 [Member]	Apr. 24, 2013 Credit facility due April 2018 [Member]	Dec. 25, 2013 Credit facility due April 2018 [Member] Secured debt [Member]	Dec. 25, 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]	Apr. 24, 2013 Credit facility due April 2018 [Member] Senior secured revolver [Member]	Dec. 25, 2013 Credit facility due April 2018 [Member] Letter of credit [Member]	Apr. 24, 2013 Credit facility due April 2018 [Member] Letter of credit [Member]	Dec. 25, 2013 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]
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 (in hundredths)															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%
Losses on early extinguishment of debt	2,226,000	8,290,000	2,589,000																			1,200,000
Debt instrument transaction costs																						400,000
Write-off of deferred financing costs																						800,000
Outstanding amount under credit facility															57,800,000	57,800,000		95,300,000
Outstanding amount under letter of credit																				24,700,000
Availability under the revolving facility																		70,100,000
Weighted-average interest rate (in hundredths)															2.17%	2.17%		2.17%						2.97%
Repayments of term loan under the credit facility																2,300,000							4,000,000
Interest rate cap, description of variable rate basis				LIBOR		LIBOR		LIBOR
Interest rate cap, basis spread on variable rate (percent)					2.00%		2.00%		2.00%
Derivative, notional amount					150,000,000		125,000,000		150,000,000		150,000,000	140,000,000
Average fixed interest rate on interest rate swaps											3.12%	3.12%
Fair value of interest rate swaps										$ 3,000,000

X

- Definition

Represents the amount the accordion feature allows the entity to increase the size of the credit facility to.

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- Definition

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

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- Definition

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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Refers to transaction cost on refinancing of debt.

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Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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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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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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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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Weighted average interest rate of long-term debt outstanding.

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The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

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

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