Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Percentage

No definition available.

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- Definition

The number of shares reinvsted during the period on other than stock option plans

+ References

No definition available.

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- Definition

Weighted Average Fair Value of equity beased awards forfeited during the period

+ References

No definition available.

+ Details

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- Definition

Weighted Average Fair Value of equity beased awards reinvested during the period

+ References

No definition available.

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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 2

-Subparagraph (h)(1)(i)

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

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)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-Subparagraph 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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809

+ Details

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

+ Details

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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

+ Details

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

+ Details

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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

+ Details

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- Definition

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

+ Details

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- Definition

The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

+ Details

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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STOCK-BASED COMPENSATION Restricted Stock Units (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award
Allocated Share-based Compensation Expense	$ 0.3	$ 8.3	$ 4.6
Restricted Stock Units Activity
Unvested Units		443,210
Granted		319,583
Vested		116,536
Forfeited Units		4,938
Reinvested		48,788
Unvested Units		690,107	443,210
Weighted Average Grant Date Fair Value Per Unit
Reinvested (dollar per share)		$ 17.38
Fair value of units vested	$ 0	$ 2.1	$ 1.3
Restricted Stock Units (RSUs)
Weighted Average Grant Date Fair Value Per Unit
Unvested		$ 17.13
Granted (dollars per share)	$ 17.12	$ 18.34	$ 18.33
Vested (dollars per share)		$ 17.65
Forfeited (dollars per share)		$ (15.40)
Unvested		$ 17.64	$ 17.13
Weighted Average Remaining Contractual Term		2 years
Funds From Operations Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting percentage		0.00%
Funds From Operations Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting percentage		200.00%
TSR Units
Share-based Compensation Arrangement by Share-based Payment Award
Risk Free Interest Rate:	0.72%		1.18%
TSR Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Risk Free Interest Rate:		0.38%
Award vesting percentage		0.00%
TSR Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Risk Free Interest Rate:		0.40%
Award vesting percentage		150.00%
Performance Incentive Plan of 2009 \| Restricted Stock Units (RSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting period		3 years
Performance Incentive Plan of 2009 \| Restricted Stock Units (RSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting period		5 years