Debt And Bank Credit Facilities (Details Of The Senior Notes) (Details) $ in Millions	12 Months Ended
Jan. 02, 2016 USD ($)
Debt Instrument [Line Items]
Senior Notes	$ 600.0
Senior Notes [Member]
Debt Instrument [Line Items]
Senior Notes	600.0
Senior Notes [Member] \| Floating Rate Series 2007A Mature In August 2017 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 100.0
Spread on variable interest rate	1.10%
Senior Notes [Member] \| Fixed Rate Series 2011A Mature In July 2018 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 100.0
Debt instrument interest rate	4.10%
Senior Notes [Member] \| Fixed Rate Series 2011A Mature In July 2021 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 230.0
Stated rate, minimum	4.80%
Stated rate, maximum	5.00%
Senior Notes [Member] \| Fixed Rate Series 2011A Mature In July 2023 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 170.0
Stated rate, minimum	4.90%
Stated rate, maximum	5.10%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Maximum contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Minimum contractual interest rate for funds borrowed, under the debt agreement.

+ 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

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: 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(a))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: 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

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