Share Based Compensation Arrangement by Share-based Payment, Determination of Performance Based Award

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Number of Monthly Installments

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Eligible for Vesting

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Percent Eligible for Time-based Vesting

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No definition available.

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- Definition

Share-based Compensation, Arrangement by Share based Payment Award, Period Use to Calculate Rate of Return

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Ratio of Reduction to Authorized Shares

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Trading Days Number of trading days used to calculate the average closing price of common stock.

+ References

No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ 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)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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 number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ 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 (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

No definition available.

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The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ 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 (a)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Percentage of vesting of share-based compensation awards.

+ References

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Employee Benefits and Share-Based Compensation - Stock Award Plans (Details)						1 Months Ended		12 Months Ended
	Mar. 03, 2015 shares	Mar. 20, 2014 shares	Dec. 16, 2010 shares	Oct. 01, 2010	May. 19, 2009 shares	Dec. 31, 2014 Day	Feb. 28, 2014 Day	Dec. 31, 2015 mo shares	Dec. 31, 2014 shares	Dec. 31, 2013 shares	Dec. 31, 2012 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reduction to share available for issuance (in per share)			2.15
Increase to shares authorized					2,600,000
Shares reserved for future issuance								10,342,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance								2,688,000
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance								3,804,000
Period used to calculate annual rates of return								1 year
Trading days \| Day						20	20
Performance Shares \| Vesting years subsequent the date of grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period								3 years
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance								3,251,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum								0.79%	0.53%	0.85%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum								25.70%	29.50%	29.50%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum								37.50%	42.10%	44.80%
2009 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance			2,600,000.0
Reduction to share available for issuance (in per share)			1.8	1.4				1
Increase to shares authorized								3,200,000		2,500,000
Shares reserved for future issuance								3,800,000
2009 Plan \| Vesting one year from the vesting commencement date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of award vesting								25.00%
2009 Plan \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period								4 years
2009 Plan \| Employee Stock Option \| Vesting one year from the vesting commencement date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period								1 year
2009 Plan \| Employee Stock Option \| Vesting in equal monthly installments
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Monthly vesting installments \| mo								36
2009 Plan \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period								4 years
Shares granted								256,000
Vested								196,000
2009 Plan \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted								60,000
Vested								107,000
2013 Performance Based Restricted Stock Units \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards eligible for vesting		137,500
Percentile rank of stockholder return		63.90%
Percentage of shares eligible for time-based vesting		100.00%
2013 Performance Based Restricted Stock Units \| Performance Shares \| Vested immediately
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards eligible for vesting								137,500
Vested								34,380	68,750
Percentage of award vesting		25.00%
2014 Performance Based Restricted Stock Units \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards eligible for vesting	132,500
Percentile rank of stockholder return	74.40%
2014 Performance Based Restricted Stock Units \| Performance Shares \| Vested immediately
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested								66,250
Officer \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted								60,000	132,500	137,500	125,000
Awards eligible for vesting											62,500