Derivative Instruments (Effect of Derivatives on Income Statement) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
Apr. 04, 2011	Oct. 01, 2013	Oct. 02, 2012	Oct. 01, 2013	Oct. 02, 2012	Jan. 01, 2013	Jan. 03, 2012	Dec. 28, 2010
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Loss on swap in accumulated other comprehensive loss (pretax)		$ 0	$ 0	$ 0	$ 186	$ 186	$ 209	$ 560
Realized loss (pretax) recognized in interest expense	$ 202	$ 0	$ 104	$ 39	$ 312	$ 382	$ 434	$ 754

Amount before tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's 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 11

-URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e689-108580

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph c

-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41638-113959

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