Performance Measurement Period

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Share-based Payments Arrangements, Shares Issued Net of Shares for Tax Withholdings

+ References

No definition available.

+ Details

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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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Period Type:	duration

- Definition

Number of performance conditions

+ References

No definition available.

+ Details

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Period Type:	duration

- 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=120381028&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)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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=120381028&loc=d3e5070-113901

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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=120381028&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=120381028&loc=d3e5070-113901

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- 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
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Details

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- Details

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SHARE-BASED COMPENSATION - Additional Information (Details) $ in Millions		3 Months Ended
	Mar. 15, 2020	Mar. 31, 2021 USD ($) numberOfPerformanceCondition shares	Mar. 31, 2020 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards outstanding to officers, directors and key employees (in shares) \| shares		1,700,000
Total number of shares authorized to be issued under 2018 Equity Incentive Plan (up to) (in shares) \| shares		1,200,000
Share-based compensation		$ 2.3	$ 1.5
Unrecognized compensation expense related to share-based compensation		$ 12.5
Remaining weighted-average period		2 years
Shares issued net of shares for tax withholdings \| shares		19,048
Stock and stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation		$ 1.5	1.1
Award vesting period		4 years
Long-term performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation		$ 0.8	$ 0.4
Performance period		2 years
Award vesting period		2 years
Share-based compensation award, number of performance conditions \| numberOfPerformanceCondition		2
Long-term performance stock units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Possible payouts		0.00%
Long-term performance stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Possible payouts		200.00%
2019 \| Long-term performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested award performance target level, percentage	25.00%
Award vesting rights, performance metric, percentage	0.00%