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Subsequent Event (Details) (USD $)	0 Months Ended
	Jan. 29, 2013	Apr. 04, 2014 Subsequent Event [Member]	Mar. 25, 2014 Subsequent Event [Member]	Mar. 25, 2014 Subsequent Event [Member] Senior Notes [Member] Senior Notes Due Two Thousand Nineteen at Four Point Seven Five Percent [Member]
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				4.75%
Percentage of Principal Amount in Relation to Issued Value of Senior Notes				100.00%
Debt Instrument, Face Amount				$ 400,000,000
Stock Issued During Period, Shares, New Issues	6,325,000	1,041,666	6,944,445
Common Stock, Par or Stated Value Per Share	$ 1.00		$ 1.00
Treasury Stock Acquired, Average Cost Per Share	$ 18.25	$ 18.00	$ 18.00

X

- Definition

Percentage of principal amount in relation to issued value of senior notes.

+ References

No definition available.

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X

- Definition

Face amount or stated value per share of common stock.

+ 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 210.5-02.29)

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

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- Definition

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Number of new stock issued during the period.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

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-Name Accounting Standards Codification

-Topic 505

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