Industrial revenue bonds capital leases and other fair value.

No definition available.

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: 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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- Details

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Fair value of lines of credit at the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Line-of-Credit Arrangement

-URI http://asc.fasb.org/extlink&oid=6517033

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- Definition

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.

+ References

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

Reference 5: 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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ 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 210.5-02.19,20)

-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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Article 5

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents notes payable as of the balance sheet date.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19,20,22)

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

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Fair value (Fair value and carrying value of debt instruments) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012	Jan. 31, 2013 3.85% Senior Notes Due February 1,2023 [Member]	Jan. 17, 2006 6.125% Notes, Payable January 15, 2016; interest payable semiannually [Member]	Mar. 30, 2013 Fair Value [Member]	Dec. 31, 2012 Fair Value [Member]	Mar. 30, 2013 Fair Value [Member] 3.85% Senior Notes Due February 1,2023 [Member]	Dec. 31, 2012 Fair Value [Member] 3.85% Senior Notes Due February 1,2023 [Member]	Mar. 30, 2013 Fair Value [Member] 6.125% Notes, Payable January 15, 2016; interest payable semiannually [Member]	Dec. 31, 2012 Fair Value [Member] 6.125% Notes, Payable January 15, 2016; interest payable semiannually [Member]	Mar. 30, 2013 Fair Value [Member] Five-Year Senior Secured Credit Facility, Due July 8, 2016 [Member]	Dec. 31, 2012 Fair Value [Member] Five-Year Senior Secured Credit Facility, Due July 8, 2016 [Member]	Mar. 30, 2013 Carrying Value [Member]	Dec. 31, 2012 Carrying Value [Member]	Mar. 30, 2013 Carrying Value [Member] 3.85% Senior Notes Due February 1,2023 [Member]	Dec. 31, 2012 Carrying Value [Member] 3.85% Senior Notes Due February 1,2023 [Member]	Mar. 30, 2013 Carrying Value [Member] 6.125% Notes, Payable January 15, 2016; interest payable semiannually [Member]	Dec. 31, 2012 Carrying Value [Member] 6.125% Notes, Payable January 15, 2016; interest payable semiannually [Member]	Mar. 30, 2013 Carrying Value [Member] Five-Year Senior Secured Credit Facility, Due July 8, 2016 [Member]	Dec. 31, 2012 Carrying Value [Member] Five-Year Senior Secured Credit Facility, Due July 8, 2016 [Member]	Mar. 30, 2013 Secured Credit Facility [Member] Fair Value [Member]	Dec. 31, 2012 Secured Credit Facility [Member] Fair Value [Member]	Mar. 30, 2013 Secured Credit Facility [Member] Carrying Value [Member]	Dec. 31, 2012 Secured Credit Facility [Member] Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable							$ 610,800	$ 0	$ 1,004,400	$ 1,011,600	$ 459,100	$ 153,875			$ 600,000	$ 0	$ 900,000	$ 900,000	$ 459,100	$ 153,875
Securitization facility																					300,000	280,000	300,000	280,000
Industrial revenue bonds, capital leases and other					47,416	49,067							47,416	49,067
Total long-term debt					2,421,716	1,494,542							2,306,516	1,382,942
Less current portion	53,496	55,213			53,496	55,213							53,496	55,213
Long-term debt, less current portion					$ 2,368,220	$ 1,439,329							$ 2,253,020	$ 1,327,729
Debt Instrument, Interest Rate, Stated Percentage			3.85%	6.125%