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Long-Term Debt (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 30, 2015 | Dec. 31, 2014 | Dec. 25, 2013
Line of Credit Facility [Line Items] |  |  |
Maturity date | Mar. 30, 2020 |  |
Losses on early extinguishment of debt | $ (225) | $ 33 | $ (2,226)
Interest Rate Cap [Member] | Interest Rate Cap 2013-2014 [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Interest rate cap, basis spread on variable rate (percent) | 2.00% |  |
Derivative, notional amount | $ 125,000 |  |
Interest Rate Cap [Member] | Interest Rate Cap 2014-2015 [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Interest rate cap, basis spread on variable rate (percent) | 2.00% |  |
Derivative, notional amount | $ 150,000 |  |
Interest Rate Swap [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Fair value of interest rate swap liability | $ 1,700 |  |
Interest Rate Swap [Member] | Interest Rate Swaps 2015-2018 [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Average fixed interest rate on interest rate swap | 2.63% |  |
Interest Rate Swap [Member] | Interest Rate Swaps 2018-2025 [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Average fixed interest rate on interest rate swap | 3.94% |  |
Interest Rate Swap [Member] | Interest Rate Swaps 2018-2026 [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Average fixed interest rate on interest rate swap | 3.96% |  |
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swaps 2015-2018 [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Derivative, notional amount | $ 120,000 |  |
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swaps 2018-2025 [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Derivative, notional amount | 120,000 |  |
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swaps 2018-2026 [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Derivative, notional amount | 50,000 |  |
Senior secured revolver [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, current borrowing capacity | $ 325,000 |  |
Basis spread on variable rate (in hundredths) | 1.50% |  |
Commitment fee for unused portion of revolving credit facility (in hundredths) | 0.20% |  |
Outstanding amount under credit facility | $ 195,000 |  |
Availability under the revolving facility | $ 107,100 |  |
Weighted-average interest rate (in hundredths) | 1.76% | 2.17% |
Senior secured revolver [Member] | Interest Rate Swap [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Weighted-average interest rate (in hundredths) | 2.31% |  |
Letter of credit [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, current borrowing capacity | $ 30,000 |  |
Outstanding amount under letter of credit | 22,900 |  |
Secured Debt [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Losses on early extinguishment of debt | (300) |  |
November 2015 Accelerated Share Repurchase [Member] |  |  |
Line of Credit Facility [Line Items] |  |  |
Share repurchase, authorized amount (dollars) | $ 50,000 |  |

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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 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 Fair value, after the effects of master netting arrangements, of a financial liability or 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 liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13495-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + 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 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: 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=56944662&loc=d3e3602-108585 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=49170532&loc=d3e12355-112629 + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 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 + 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 + 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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