Debt - Carrying Value of Outstanding Debt (Additional Information) (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Oct. 03, 2015	Jan. 03, 2015
Senior unsecured notes, 5.25% due 2017
Debt
Debt, interest rate	5.25%	5.25%
Debt Instrument, Maturity Date	Sep. 01, 2017	Sep. 01, 2017
Senior unsecured notes, 5.00% due 2022
Debt
Debt, interest rate	5.00%	5.00%
Debt Instrument, Maturity Date	Aug. 10, 2022	Aug. 10, 2022
Debt Instrument, Unamortized Discount	$ 1,232	$ 1,366
Senior unsecured notes, 4.95% due 2024
Debt
Debt, interest rate	4.95%	4.95%
Debt Instrument, Maturity Date	Dec. 15, 2024	Dec. 15, 2024
Debt Instrument, Unamortized Discount	$ 1,613	$ 1,745

Standby Letters of Credit [Line Items]

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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

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ 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

+ Details

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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