Performance Measurement Period

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Outstanding

+ References

No definition available.

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- Definition

Share-based compensation arrangement by sharebased payment award possible payout percentage.

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Performance Metric, Percentage

+ References

No definition available.

+ Details

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- Definition

Number of performance conditions

+ References

No definition available.

+ Details

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Amount of cost not yet recognized for nonvested award 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
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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

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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

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.

+ Details

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- Definition

Number of shares authorized for issuance 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
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Period Type:	instant

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ 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 (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ 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
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Period Type:	instant

- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ 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
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- Definition

The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Section 50
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- Definition

Percentage of vesting of award 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
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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.

+ 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
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- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Publisher FASB
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-Topic 718
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SHARE-BASED COMPENSATION - Additional Information (Details) $ / shares in Units, $ in Millions		3 Months Ended
	Mar. 15, 2020	Mar. 31, 2020 USD ($) perfconditions $ / shares shares	Mar. 31, 2019 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards outstanding to officers, directors and key employees (in shares) \| shares		1,300,000
Share-based compensation		$ 1.5	$ 2.4
Unrecognized compensation expense related to share-based compensation		$ 11.9
Remaining weighted-average period		2 years 6 months
Exercisable stock option shares outstanding (in shares) \| shares		53,000
Exercise price of stock options (in dollars per share) \| $ / shares		$ 32.55
Weighted-average remaining contractual life of options exercisable		1 year 6 months
Range of prices, lower limit (in dollars per share) \| $ / shares		$ 21.12
Range of prices, upper limit (in dollars per share) \| $ / shares		$ 50.47
Total number of shares authorized to be issued under 2018 Equity Incentive Plan (up to) (in shares) \| shares		1,200,000.0
Stock and stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation		$ 1.1	1.5
Award vesting period		4 years
Long-term performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation		$ 0.4	$ 0.9
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award contractual term		10 years
2018 and 2019 \| Long-term performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		2 years
Performance period		2 years
Share-based compensation award, number of performance conditions \| perfconditions		2
2018 and 2019 \| Long-term performance stock units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Possible payouts		0.00%
2018 and 2019 \| Long-term performance stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Possible payouts		200.00%
2018 \| Long-term performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested award performance target level, percentage	100.00%
Award vesting rights, performance metric, percentage	73.00%