Share based compensation arrangement by share based payment award grant date.

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- Definition

Share based compensation arrangement by share based payment award other than options exercisable number.

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- Definition

Share based compensation arrangement by share based payment award other than options exercisable weighted average exercise price.

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- Definition

Share based compensation plans.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

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-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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- Definition

The per share price that the individual must pay to acquire shares under the deferred compensation arrangement.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64, 65

-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.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph a

-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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

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- Definition

The number of shares issued pursuant to the terms of the deferred compensation plan as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-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.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 65

-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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (l)

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- Definition

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

+ References

+ Details

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- Definition

The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

+ References

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(c)

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph c(1)

-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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(a)

-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.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(b)

-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 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

+ Details

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

+ Details

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- Definition

Net number of share options (or share units) granted during the period.

+ References

+ Details

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

+ Details

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Share-Based Compensation Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011 Year Claim mi oz LegalMatter	Sep. 30, 2010
Issuance of new grants
Grant Date			Sep. 12, 2011
Share-Based Compensation Plans (Textual) [Abstract]
Allocated Share-based Compensation Expense	$ 0.5	$ 2.0	$ 5.3	$ 4.0
Total unrecognized compensation cost	$ 5.0		$ 5.0
Expected period to recognized			1.6
Grant Date One [Member]
Issuance of new grants
Grant Date			Jan. 03, 2011
Grant Date One [Member] \| Restricted Stock [Member]
Issuance of new grants
Restricted and Performance shares			188,673
Granted date fair value of Restricted and Performance shares			$ 27.45
Grant Date One [Member] \| Employee Stock Option [Member]
Issuance of new grants
Stock options			121,017
Grant date fair value of stock options			$ 17.89
Grant Date One [Member] \| Performance Shares [Member]
Issuance of new grants
Restricted and Performance shares			70,188
Granted date fair value of Restricted and Performance shares			$ 42.81
Grant Date Two [Member]
Issuance of new grants
Grant Date			Mar. 08, 2011
Grant Date Two [Member] \| Restricted Stock [Member]
Issuance of new grants
Restricted and Performance shares			1,509
Granted date fair value of Restricted and Performance shares			$ 34.79
Grant Date Two [Member] \| Employee Stock Option [Member]
Issuance of new grants
Stock options			2,562
Grant date fair value of stock options			$ 22.82
Grant Date Two [Member] \| Performance Shares [Member]
Issuance of new grants
Restricted and Performance shares			1,509
Granted date fair value of Restricted and Performance shares			$ 55.12
Grant Date Three [Member]
Issuance of new grants
Grant Date			May 09, 2011
Grant Date Three [Member] \| Restricted Stock [Member]
Issuance of new grants
Restricted and Performance shares			5,853
Granted date fair value of Restricted and Performance shares			$ 26.98
Grant Date Three [Member] \| Employee Stock Option [Member]
Issuance of new grants
Stock options			10,059
Grant date fair value of stock options			$ 17.59
Grant Date Three [Member] \| Performance Shares [Member]
Issuance of new grants
Restricted and Performance shares			5,853
Granted date fair value of Restricted and Performance shares			$ 42.08
Grant Date Four [Member]
Issuance of new grants
Grant Date			Jul. 12, 2011
Grant Date Four [Member] \| Restricted Stock [Member]
Issuance of new grants
Restricted and Performance shares			6,268
Granted date fair value of Restricted and Performance shares			$ 25.45
Grant Date Four [Member] \| Employee Stock Option [Member]
Issuance of new grants
Stock options			1,344
Grant date fair value of stock options			$ 16.44
Grant Date Four [Member] \| Performance Shares [Member]
Issuance of new grants
Restricted and Performance shares			779
Granted date fair value of Restricted and Performance shares			$ 39.69
Restricted Stock [Member]
Issuance of new grants
Restricted and Performance shares			1,077
Granted date fair value of Restricted and Performance shares			$ 28.6
Restricted Stock [Member] \| President and Chief Executive Officer [Member]
Issuance of new grants
Long term incentive plan outstanding share, Share issued			49,929
Employee Stock Option [Member]
Issuance of new grants
Stock options			1,685
Grant date fair value of stock options			$ 18.31
Options exercisable	212,292		212,292
Weighted Average Exercise price	$ 35.28		$ 35.28
Employee Stock Option [Member] \| President and Chief Executive Officer [Member]
Issuance of new grants
Long term incentive plan outstanding share, Share issued			107,425
Long term incentive plan outstanding share, Weighted average exercise price			$ 11.67
Performance Shares [Member]
Issuance of new grants
Restricted and Performance shares			1,077
Granted date fair value of Restricted and Performance shares			$ 44.6
Performance Shares [Member] \| President and Chief Executive Officer [Member]
Issuance of new grants
Long term incentive plan outstanding share, Share issued			56,830
Performance Units [Member]
Issuance of new grants
Weighted average fair value	$ 23.95		$ 23.95
Performance Units [Member] \| President and Chief Executive Officer [Member]
Issuance of new grants
Long term incentive plan outstanding share, Share issued			57,948
Restricted Units [Member]
Issuance of new grants
Weighted average fair value	$ 21.44		$ 21.44
Restricted Units [Member] \| President and Chief Executive Officer [Member]
Issuance of new grants
Long term incentive plan outstanding share, Share issued			31,186
SARs [Member]
Issuance of new grants
Weighted average fair value	$ 14.69		$ 14.69
SARs Exercisable	32,157		32,157
Weighted Average Exercise price	$ 13.17		$ 13.17
SARs [Member] \| President and Chief Executive Officer [Member]
Issuance of new grants
Long term incentive plan outstanding share, Share issued			96,188
Long term incentive plan outstanding share, Weighted average exercise price			$ 13.31