Allocated Share-based Compensation Expense, Incremental Modification Cost

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

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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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-Publisher FASB
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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ 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

Amount of cash paid related to share-based compensation liabilities.

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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

Net number of non-option equity instruments granted to participants.

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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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Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended					3 Months Ended	6 Months Ended
	May 31, 2018	Apr. 30, 2018	Oct. 31, 2017	Aug. 31, 2017	Feb. 28, 2017	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expenses							$ 2.3	$ 2.7
Unrecognized stock-based compensation cost						$ 9.2	$ 9.2
Unrecognized stock-based compensation cost, recognition period							3 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting periods							3 years
Incremental modification cost						$ 0.2
Share-based compensation, liability paid							$ 1.1
Stock-based compensation expenses							$ 0.2
Restricted Stock Units (RSUs) \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs or SARs granted (in shares)					612,000
Restricted Stock Units (RSUs) \| Chairman of the Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs or SARs granted (in shares)	7,500	585,000		100,000
Restricted Stock Units (RSUs) \| Internal General Counsel
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs or SARs granted (in shares)			28,409
Restricted Stock Units (RSUs) \| Vesting on First Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage							40.00%
Restricted Stock Units (RSUs) \| Vesting on Second Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage							30.00%
Restricted Stock Units (RSUs) \| Vesting on Third Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage							30.00%
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs or SARs granted (in shares)		335,000			700,000		335,000
Awards vesting periods					3 years
Share-based compensation, liability paid							$ 1.7
Share-based compensation expiration period					5 years
Stock Appreciation Rights (SARs) \| Vesting on First Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage					40.00%
Stock Appreciation Rights (SARs) \| Vesting on Second Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage					30.00%
Stock Appreciation Rights (SARs) \| Vesting on Third Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation award vesting rights, Percentage					30.00%