This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

No definition available.

+ Details

Name:	us-gaap_AssetsFairValueDisclosureRecurring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1a)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph c

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Pension Benefits - Reconciliation of Significant Observable Inputs (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended					12 Months Ended					12 Months Ended						12 Months Ended					12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Dec. 29, 2013 Level 3 [Member]	Dec. 30, 2012 Level 3 [Member]	Dec. 25, 2011 Level 3 [Member]	Dec. 29, 2013 Assets Still Held [Member]	Dec. 30, 2012 Assets Still Held [Member]	Dec. 29, 2013 Hedge Funds [Member]	Dec. 29, 2013 Hedge Funds [Member] Level 3 [Member]	Dec. 30, 2012 Hedge Funds [Member] Level 3 [Member]	Dec. 29, 2013 Hedge Funds [Member] Assets Still Held [Member]	Dec. 29, 2013 Private Equity Funds [Member]	Dec. 30, 2012 Private Equity Funds [Member]	Dec. 29, 2013 Private Equity Funds [Member] Level 3 [Member]	Dec. 30, 2012 Private Equity Funds [Member] Level 3 [Member]	Dec. 25, 2011 Private Equity Funds [Member] Level 3 [Member]	Dec. 29, 2013 Private Equity Funds [Member] Assets Still Held [Member]	Dec. 30, 2012 Private Equity Funds [Member] Assets Still Held [Member]	Dec. 30, 2012 Real Estate Funds [Member]	Dec. 30, 2012 Real Estate Funds [Member] Level 3 [Member]	Dec. 25, 2011 Real Estate Funds [Member] Level 3 [Member]	Dec. 30, 2012 Real Estate Funds [Member] Assets Still Held [Member]
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Balance at beginning of year			$ 70,862	$ 62,381	$ 37,393				$ 30,325	$ 26,370				$ 40,537	$ 36,011	$ 37,393				$ 26,370	$ 0
Actual gain on plan assets still held and sold during the period						10,124	(366)				3,955						6,169	(1,736)				1,370
Capital contribution	3,018	28,737						0				3,018	3,737						25,000
Return of Capital	(4,661)	(3,383)						0				(4,661)	(3,383)						0
Balance at end of year			$ 70,862	$ 62,381	$ 37,393				$ 30,325	$ 26,370				$ 40,537	$ 36,011	$ 37,393				$ 26,370	$ 0