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Long-Term Debt (Details) (USD $) | 9 Months Ended | 8 Months Ended |  | 8 Months Ended | 9 Months Ended |  | 8 Months Ended |  |  |  |  | 9 Months Ended | 3 Months Ended |  | 9 Months Ended |  | 9 Months Ended |  | 9 Months Ended |
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Sep. 25, 2013 | Sep. 26, 2012 | 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] | Sep. 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] | Sep. 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] | Sep. 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] | Sep. 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] | Sep. 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] | Sep. 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] | Sep. 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] | 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]
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 | 1,798,000 | 8,180,000 |  |  |  |  |  |  |  |  |  |  | 1,200,000 |  |  |  |  |  |  |  |  |  |
Debt transaction costs |  |  |  |  |  |  |  |  |  |  |  |  | 400,000 |  |  |  |  |  |  |  |  |  |
Write off of deferred financing costs |  |  |  |  |  |  |  |  |  |  |  |  | 800,000 |  |  |  |  |  |  |  |  |  |
Outstanding amount under credit facility |  |  |  |  |  | 58,500,000 |  |  | 97,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding amount of letters of credit |  |  |  |  |  |  |  |  |  |  | 26,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Availability under the revolving facility |  |  |  |  |  |  |  |  | 67,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average interest rate under the term loan (in hundredths) |  |  |  |  |  | 2.18% |  |  | 2.18% |  |  |  |  |  | 2.97% |  |  |  |  |  |  |  |
Repayments of term loan under the credit facility |  |  |  |  |  | 1,500,000 |  |  |  |  |  |  |  | 4,000,000 |  |  |  |  |  |  |  |  |
Interest rate cap, description of variable rate basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | LIBOR |  | LIBOR |  | LIBOR |  |  |
Interest rate cap, basis spread on variable rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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%

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- Definition Annual amortization percentage of the original principal balance of term loan debt required to be paid in year five. + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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