Exercise price of call options

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- Definition

Maximum Contribution

+ References

No definition available.

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- Definition

Principal amount in conversion feature

+ References

No definition available.

+ Details

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(4))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Article 5

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-Subparagraph (SX 210.5-02.22(a)(5))

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Conversion Rate

-URI http://asc.fasb.org/extlink&oid=6509012

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- Definition

Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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-SubTopic 405

-Section 45

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-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

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Subsequent Events (Details) (USD $)	12 Months Ended			0 Months Ended
Subsequent Events (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 13, 2015	Jan. 21, 2015	Jan. 28, 2015
Subsequent Events (Textuals) [Abstract]
Cash dividend declared per common share	$ 1.4	$ 1.2	$ 1
Conversion price of note	$ 47.80
Subsequent Event
Subsequent Events (Textuals) [Abstract]
Cash dividend declared per common share				$ 0.40
Dividends				$ 7,100,000
Conversion price of note					$ 47.70
Convertible Notes
Subsequent Events (Textuals) [Abstract]
Conversion rate of common stock shares per $1,000 of principal amount	20.9186
Principal amount in conversion feature	1,000
Convertible Notes \| Subsequent Event
Subsequent Events (Textuals) [Abstract]
Conversion rate of common stock shares per $1,000 of principal amount					20.9664
Principal amount in conversion feature					1,000
Call Options
Subsequent Events (Textuals) [Abstract]
Exercise price of call options	$ 47.80
Call Options \| Subsequent Event
Subsequent Events (Textuals) [Abstract]
Exercise price of call options					$ 47.70
Warrants
Subsequent Events (Textuals) [Abstract]
Exercise price per share of Warrants	$ 60.70	$ 61.08
Warrants \| Subsequent Event
Subsequent Events (Textuals) [Abstract]
Exercise price per share of Warrants					$ 60.57
Union VEBA \| Subsequent Event
Subsequent Events (Textuals) [Abstract]
Maximum Contribution						$ 17,100,000