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STOCK-BASED COMPENSATION (Summary of Unit Activity) (Details) - Phantom Share Units (PSUs) [Member]	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Non-Vested Units
Units, beginning balance (in shares) | shares	769,688
Granted (in shares) | shares	344,546
Vested (in shares) | shares	(308,427)
Forfeited (in shares) | shares	(15,125)
Units, ending balance (in shares) | shares	790,682
Weighted Average Grant Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 15.29
Granted (in dollars per share) | $ / shares	14.50
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Intrinsic Value, Amount Per Share (in dollars per share) | $ / shares	17.07
Forfeited (in dollars per share) | $ / shares	12.81
Weighted average grant date fair value, ending balance (in dollars per share) | $ / shares	$ 14.30

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

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

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-Publisher FASB
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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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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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Per share or unit weighted-average intrinsic value of award vested under share-based payment arrangement. Excludes share and unit options.

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Net number of non-option equity instruments granted to participants.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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