COMPENSATION ARRANGEMENTS - Restricted Stock Units and Performance Share Unit Activity (Details) - $ / shares	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	1,853,007
Granted (in shares)	2,150,963
Vested (in shares)	(1,229,689)
Forfeited (in shares)	(569,046)
Ending balance (in shares)	2,205,235	1,853,007
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-average grant date fair value, beginning balance (in usd per share)	$ 31.91
Weighted-average grant date fair value, granted (in usd per share)	31.48	$ 24.92	$ 68.80
Weighted-average grant date fair value, vested (in usd per share)	30.26
Weighted-average grant date fair value, forfeited (in usd per share)	36.69
Weighted-average grant date fair value, ending balance (in usd per share)	$ 31.06	$ 31.91
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	124,709
Granted (in shares)	41,729
Vested (in shares)	(90,006)
Forfeited (in shares)	(38,669)
Ending balance (in shares)	37,763	124,709
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-average grant date fair value, beginning balance (in usd per share)	$ 29.73
Weighted-average grant date fair value, granted (in usd per share)	15.44
Weighted-average grant date fair value, vested (in usd per share)	26.46
Weighted-average grant date fair value, forfeited (in usd per share)	23.24
Weighted-average grant date fair value, ending balance (in usd per share)	$ 28.39	$ 29.73
Maximum number of shares issuable (in shares)	37,763
Market-based Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	57,668
Granted (in shares)	0
Vested (in shares)	0
Forfeited (in shares)	0
Ending balance (in shares)	57,668	57,668
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-average grant date fair value, beginning balance (in usd per share)	$ 60.60
Weighted-average grant date fair value, granted (in usd per share)	0
Weighted-average grant date fair value, vested (in usd per share)	0
Weighted-average grant date fair value, forfeited (in usd per share)	0
Weighted-average grant date fair value, ending balance (in usd per share)	$ 0	$ 60.60
Maximum number of shares issuable (in shares)	57,668

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
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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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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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Number of additional shares authorized for issuance under share-based payment arrangement.

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