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 share-based compensation arrangements (for example, shares of stock, 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 Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64
-Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph g(1)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

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- Definition

As of the latest balance-sheet date presented, the total compensation cost related to outstanding, nonvested share-based compensation awards not yet recognized (will be charged against earnings as services are performed or other vesting criteria are met).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph h

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- Definition

The weighted average period over which unrecognized share-based compensation costs are expected to be reported.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph h

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- Definition

The number of shares issuable under a share-based award plan pertaining to grants made during the period on other than stock option plans (for example, phantom stock plan, stock 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)

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- Definition

The weighted average fair value at grant for nonvested share-based awards issued during the period on other than stock option plans (for example, phantom stock plan, stock 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)

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)

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- Definition

The weighted average fair value of nonvested awards on share-based plans excluding option plans (for example, phantom stock plan, stock 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.

+ 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)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph b(2)(b)

+ Details

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph b(1)(c), d(2)

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph b(1)(c)

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- Definition

The quantity of shares issuable on stock options awarded under the plan during the reporting period.

+ 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(1)(d)

+ 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph c(1)

+ Details

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Share-Based Compensation Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Issuance of new grants
Grant Date			May 09, 2011
Share-Based Compensation Plans (Textuals) [Abstract]
Allocated Share-based Compensation Expense	$ (3.4)	$ 0.6	$ 4.8	$ 2.0
Total unrecognized compensation cost	$ 6.1		$ 6.1
Expected period to recognized			1.7
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
Restricted Stock [Member]
Issuance of new grants
Restricted and Performance shares			5,853
Granted date fair value of Restricted and Performance shares			$ 26.98
Employee Stock Option [Member]
Issuance of new grants
Stock options			10,059
Grant date fair value of stock options			$ 17.59
Options exercisable	256,023		256,023
Weighted Average Exercise price	$ 28.63		$ 28.63
Performance Shares [Member]
Issuance of new grants
Restricted and Performance shares			5,853
Granted date fair value of Restricted and Performance shares			$ 42.08
Performance Units [Member]
Issuance of new grants
Weighted average fair value	$ 29.71		$ 29.71
Restricted Units [Member]
Issuance of new grants
Weighted average fair value	$ 24.26		$ 24.26
SARs [Member]
Issuance of new grants
Weighted average fair value	$ 17.40		$ 17.40
SARs Exercisable	82,170		82,170
Weighted Average Exercise price	$ 12.53		$ 12.53