Long-Term Debt (Details) - USD ($)	Jan. 03, 2016	Dec. 28, 2014
Debt Instrument [Line Items]
Long-term debt	$ 765,500,000	$ 694,700,000
Current portion of long-term debt	(10,000,000)	(84,900,000)
Total long-term debt, net of current portion	755,500,000	609,800,000
Available capacity under credit facility	750,000,000
Term Loans due through March 2019, weighted average rate of 1.55% at January 3, 2016, and 1.28% at December 28, 2014
Debt Instrument [Line Items]
Long-term debt	190,000,000	$ 200,000,000
Total long-term debt, net of current portion	$ 200,000,000.0
Weighted average interest rate	1.55%	1.28%
4.04% Senior Notes due September 2015
Debt Instrument [Line Items]
Long-term debt	$ 0	$ 75,000,000
Interest rate	4.04%	4.04%
4.74% Senior Notes due September 2017
Debt Instrument [Line Items]
Long-term debt	$ 100,000,000	$ 100,000,000
Interest rate	4.74%	4.74%
2.61% Senior Notes due December 2019
Debt Instrument [Line Items]
Long-term debt	$ 30,000,000	$ 30,000,000
Interest rate	2.61%	2.61%
5.30% Senior Notes due September 2020
Debt Instrument [Line Items]
Long-term debt	$ 75,000,000	$ 75,000,000
Interest rate	5.30%	5.30%
2.81% Senior Notes due November 2020
Debt Instrument [Line Items]
Long-term debt	$ 25,000,000	$ 0
Interest rate	2.81%	2.81%
3.09% Senior Notes due December 2021
Debt Instrument [Line Items]
Long-term debt	$ 95,000,000	$ 95,000,000
Interest rate	3.09%	3.09%
3.28% Senior Notes due November 2022
Debt Instrument [Line Items]
Long-term debt	$ 100,000,000	$ 0
Interest rate	3.28%	3.28%
Other debt
Debt Instrument [Line Items]
Long-term debt	$ 0	$ 14,700,000
$750.0 million revolving credit facility, due December 2020, weighted average rate of 1.67% at January 3, 2016, and 1.24% at December 28, 2014
Debt Instrument [Line Items]
Long-term debt	150,500,000	105,000,000
Available capacity under credit facility	$ 750,000,000	$ 750,000,000
Weighted average interest rate	1.67%	1.24%

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: 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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-Topic 210
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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