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SHARE-BASED COMPENSATION - Restricted Unit Activity (Details) - Time-Based Restricted Stock Units - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number of Restricted Units
Outstanding, beginning balance (in shares)	491,196
Restricted units granted (in shares)	72,689	431,913	84,987
Restricted units vested (in shares)	(149,444)
Outstanding, ending balance (in shares)	414,441	491,196
Weighted Average Grant Date Fair Value per unit
Outstanding, beginning balance (in dollars per share)	$ 13.32
Restricted units granted (in dollars per share)	14.26	$ 13.10	$ 14.11
Restricted units vested (in dollars per share)	14.00
Outstanding, ending balance (in dollars per share)	$ 13.24	$ 13.32
Vested in period, fair value	$ 2,956	$ 1,784	$ 749

X

- 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).

+ References

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-Publisher FASB
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- Definition

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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- Definition

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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-Paragraph 2
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- Definition

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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- Definition

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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-Publisher FASB
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- Definition

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

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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

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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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