Share based compensation arrangement by share based payment award options expiration period.

No definition available.

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- Definition

Share based compensation arrangement by share based payment award stock award and option vesting rate per year.

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Level of Performance Attained, Percentage

+ References

No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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

+ References

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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

Number of additional shares authorized for issuance under share-based payment arrangement.

+ References

No definition available.

+ Details

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- Definition

Number of shares issued under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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

+ References

No definition available.

+ Details

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Stockholders' Equity - 2017 Plan (Details) - USD ($)					3 Months Ended	12 Months Ended
Stockholders' Equity - 2017 Plan (Details) - USD ($)	Mar. 31, 2019	Mar. 31, 2018	May 23, 2017	Mar. 31, 2017	Mar. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized (in shares)			2,000,000
Shares reserved for future issuance (in shares)			6,100,000
Minimum \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price percentage of the fair market value of common stock						100.00%
Maximum \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock expiration period						10 years
Ten Percent Or More Stockholders \| Minimum \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price percentage of the fair market value of common stock						110.00%
Ten Percent Or More Stockholders \| Maximum \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock expiration period						5 years
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax of total unrecognized compensation cost related to non-vested restricted stock awards						$ 5,600,000
Pretax total unrecognized compensation cost related to share options- period						2 years
Fair value of shares vested						$ 2,600,000	$ 2,500,000	$ 3,700,000
Restricted Stock Awards \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock vesting period						3 years
Performance Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax of total unrecognized compensation cost related to non-vested restricted stock awards						$ 700,000
Pretax total unrecognized compensation cost related to share options- period						1 year 6 months 26 days
Fair value of shares vested						$ 0	$ 500,000	$ 1,600,000
Performance Stock Awards \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)	192,939	238,328		181,067	66,692
Percentage of performance attained					48.00%
Stock Appreciation Rights \| 2007 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock expiration period						7 years
Stock vesting period						4 years
Stock vesting percentage per year						25.00%