Parent Financial Statements Comprehensive Income Parentheticals (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012
Parent Financial Statements
Change in unrecognized pension loss, tax	$ 37	$ 127	$ (21)
Unrealized gain on cash flow hedges, tax	(468)	0	0
Parent Company [Member]
Parent Financial Statements
Change in unrecognized pension loss, tax	37	127	(21)
Unrealized gain on cash flow hedges, tax	$ (468)	$ 0	$ 0

Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 10A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e640-108580

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