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STOCK COMPENSATION - Summary of Performance-based Award Activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares
Restricted Shares
Weighted-average years expected to be recognized over (in years)	1 year 7 months 6 days
Performance Shares
Restricted Shares
Beginning balance (in shares) | shares	431,046
Grants (in shares) | shares	176,915
Vested (in shares) | shares	(150,273)
Cancellations (in shares) | shares	(21,358)
Ending balance (in shares) | shares	436,330
Total unrecognized compensation expense remaining (in thousands) | $	$ 2,793
Weighted-average years expected to be recognized over (in years)	2 years
Weighted- average grant date fair value
Beginning balance (usd per share) | $ / shares	$ 9.94
Grants (usd per share) | $ / shares	14.18
Vested (usd per share) | $ / shares	12.79
Cancellations (usd per share) | $ / shares	12.76
Ending balance (usd per share) | $ / shares	$ 10.54

X

- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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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The weighted average fair value at grant date for nonvested equity-based awards issued 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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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