Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Award Performance Period

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Number Of Annual Performance Metrics

+ References

No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB
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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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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.

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- Definition

Discount rate from fair value on purchase date that participants pay for shares.

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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).

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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.

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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

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).

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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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- Definition

Percentage of vesting of share-based compensation awards.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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Equity Incentive Plans - Narrative (Details) $ in Millions	9 Months Ended	12 Months Ended
Equity Incentive Plans - Narrative (Details) $ in Millions	Sep. 30, 2018 shares	Dec. 31, 2018 USD ($) metric shares	Dec. 31, 2017 metric shares	Dec. 31, 2016 metric shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, number outstanding (in shares)		1,462,000
Vesting period		4 years
Expiration period		10 years
Restricted Stock Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Number Of Annual Performance Metrics \| metric		2	2	2
Unvested awards other than options	2,018,000		1,770,000
Unrecognized compensation costs related to awards \| $		$ 31.4
Expected weighted average period to recognize expense		2 years 2 months 12 days
Granted shares	906,000
Performance period				3 years
Restricted Stock Award \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		0.00%	0.00%	0.00%
Restricted Stock Award \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		200.00%	200.00%	200.00%
Restricted Stock Award \| Certain Employees and Executive Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted shares		906,000	933,000	524,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs related to awards \| $		$ 2.0
Expected weighted average period to recognize expense		2 years 8 months 12 days
Performance Shares \| Certain Employees and Executive Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted shares		352,500	352,500	173,000
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount on purchase of Common Stock for employee from the current market price		5.00%
Capital shares reserved for future issuance		750,000
Issuance of common stock (ESPP) (in shares)		24,365	20,009	23,037
2014 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized				4,600,000
Share-based Compensation Award, Tranche One [Member] \| Restricted Stock Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		50.00%	50.00%	50.00%
Performance period		3 years	3 years	3 years
Share-based Compensation Award, Tranche Two [Member] \| Restricted Stock Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		50.00%	50.00%	50.00%
Performance period		3 years	3 years	3 years