Derivative Financial Instruments Schedule of Derivatives (Details) (USD $)	3 Months Ended
Mar. 29, 2015	Mar. 30, 2014
Derivative [Line Items]
Net effect of swaps	$ 116,000	$ (371,000)
Debt instrument, LIBOR floor, decrease to percent	1.00%
Debt instrument, LIBOR floor, decrease from percent	1.50%
Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 12 [Member]
Derivative [Line Items]
Notional amount	200,000,000
Fixed interest rate	3.00%
Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 13 [Member]
Derivative [Line Items]
Notional amount	100,000,000
Fixed interest rate	3.00%
Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 14 [Member]
Derivative [Line Items]
Notional amount	100,000,000
Fixed interest rate	2.996%
Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 15 [Member]
Derivative [Line Items]
Notional amount	100,000,000
Fixed interest rate	2.70%
Interest Rate Swap [Member]
Derivative [Line Items]
Amortization of Deferred Hedge Gains	1,700,000	2,000,000
Cash Flow Hedging [Member] \| Forward-Starting Interest Rate Swap [Member]
Derivative [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	3,200,000
Cash Flow Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| 2013 forwards [Member]
Derivative [Line Items]
Average rate	2.94%
Derivative, amount of hedged item	500,000,000
Number of derivative instruments	4
Designated As Hedging [Member]
Derivative [Line Items]
Notional amount	500,000,000
Fixed interest rate	2.94%
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	0
Designated As Hedging [Member] \| Cash Flow Hedging [Member] \| Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(4,602,000)	(2,742,000)
Not Designated As Hedging [Member]
Derivative [Line Items]
Notional amount	800,000,000
Average rate	2.38375%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 1 [Member]
Derivative [Line Items]
Notional amount	200,000,000
Fixed interest rate	2.27%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 2 [Member]
Derivative [Line Items]
Notional amount	150,000,000
Fixed interest rate	2.427%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 3 [Member]
Derivative [Line Items]
Notional amount	75,000,000
Fixed interest rate	2.298%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 4 [Member]
Derivative [Line Items]
Notional amount	70,000,000
Fixed interest rate	2.54%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 5 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.54%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 6 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.54%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 7 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.427%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 8 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.293%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 9 [Member]
Derivative [Line Items]
Notional amount	50,000,000
Fixed interest rate	2.293%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 10 [Member]
Derivative [Line Items]
Notional amount	30,000,000
Fixed interest rate	2.54%
Not Designated As Hedging [Member] \| Forward-Starting Interest Rate Swap [Member] \| Forward Starting Interest Rate Swap 11 [Member]
Derivative [Line Items]
Notional amount	25,000,000
Fixed interest rate	2.298%
Credit Agreement 2013 [Member] [Domain] \| Senior Secured Term Loan [Member]
Derivative [Line Items]
Interest rate LIBOR floor	0.75%
Interest Expense [Member] \| Designated As Hedging [Member] \| Cash Flow Hedging [Member] \| Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0	0
Net Effect of Swaps [Member] \| Designated As Hedging [Member] \| Cash Flow Hedging [Member] \| Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Net Hedge Ineffectiveness Gain (Loss)	0	0
Net Effect of Swaps [Member] \| Not Designated As Hedging [Member] \| Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 1,802,000	$ 1,617,000

Debt Instrument Interest Rate Libor Floor

No definition available.

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- Definition

Debt Instrument Libor Floor Decrease From Percent

+ References

No definition available.

+ Details

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- Definition

Debt Instrument Libor Floor Decrease To Percent

+ 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

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 14A

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-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 10A

-Subparagraph (d)

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-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 14

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-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 11

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-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 2

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- Definition

The amount of expense charged against earnings by an Entity to record deferred gains and losses on hedge instruments. Examples include gain on economic hedges, amortization of gain on designated fair value hedge and so forth.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

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-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

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- Definition

Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

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-Paragraph 4C

-Subparagraph (a),(c),(d),(e)

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

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-Subparagraph (c)

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-Topic 815

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-Paragraph 4D

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

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- Definition

Amount of gain (loss) from the ineffectiveness of the hedge.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (d)(1)

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-Topic 815

-SubTopic 25

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

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- Definition

The number of derivative instruments of a particular group held by the entity.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

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- Definition

The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

+ References

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-Publisher FASB

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-SubTopic 30

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-Paragraph 1

-Subparagraph (c)

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