Number of performance stock unit grants.

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- Definition

Target percentage of shares of common stock granted as performance stock units, based on the attainment of specified levels of adjusted EBITDA.

+ References

No definition available.

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- Definition

Market value of share based compensation arrangement by share based payment award other than options granted during the period.

+ References

No definition available.

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- Definition

Amount of cost capitalized for award under share-based payment arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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

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

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

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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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Stock Compensation (Narrative) (Details) shares in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($) shares	Mar. 31, 2019 USD ($) shares	Dec. 31, 2019 item
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capitalized stock compensation expense	$ 125	$ 132
ESPP Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ESPP, percentage of market price for eligible employees	85.00%
Employees purchased common stock, shares \| shares	30	24
RSAs, RSUs, And PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized awards from approved stock incentive plans \| shares	255	453
Aggregate grant date market value	$ 6,600	$ 13,400
Unrecognized compensation costs	16,200
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs	$ 3,400
Expected weighted-average period for recognizing the unrecognized compensation costs, in years	2 years 3 months 18 days
Restricted Stock Awards (RSAs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected weighted-average period for recognizing the unrecognized compensation costs, in years	1 year 7 months 6 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected weighted-average period for recognizing the unrecognized compensation costs, in years	2 years 1 month 6 days
Performance Stock Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance stock unit grants \| item			2
Expected weighted-average period for recognizing the unrecognized compensation costs, in years	2 years 4 months 24 days
Short-term PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target number of shares of common stock granted as Performance Stock Units			83.00%
Short-term PSUs [Member] \| Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Long-term PSUs [Member] \| Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
Minimum [Member] \| Performance Stock Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target number of shares of common stock granted as Performance Stock Units	60.00%
Maximum [Member] \| Performance Stock Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target number of shares of common stock granted as Performance Stock Units	150.00%
Maximum [Member] \| Short-term PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target number of shares of common stock granted as Performance Stock Units			150.00%
Maximum [Member] \| Long-term PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target number of shares of common stock granted as Performance Stock Units			288.00%
Officers [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants of stock options \| shares	212	169
Executive Officer [Member] \| Maximum [Member] \| Long-term PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target number of shares of common stock granted as Performance Stock Units			192.00%