STOCK-BASED COMPENSATION - Restricted Stock Activity (Details) - $ / shares	5 Months Ended	7 Months Ended	12 Months Ended
Dec. 31, 2022	Jul. 27, 2022	Dec. 31, 2021
Obagi Cosmeceuticals
Weighted Average Grant Date Fair Value per Share
Exercised, weighted average grant date fair value (in dollars per share)		$ 0	$ 0
Restricted stock \| Waldencast plc
Shares
Outstanding, beginning balance (in shares)	0
Granted (in shares)	3,173,364
Vested (in shares)	(370,945)
Forfeited (in shares)	0
Outstanding, ending balance (in shares)	2,802,419	0
Weighted Average Grant Date Fair Value per Share
Outstanding beginning balance, weighted average grant date fair value (in dollars per share)	$ 0
Granted, weighted average grant date fair value (in dollars per share)	9.16
Vested, weighted average grant date fair value (in dollars per share)	10.00
Forfeited, weighted average grant date fair value (in dollars per share)	0
Outstanding ending balance, weighted average grant date fair value (in dollars per share)	$ 9.16	$ 0
Restricted Stock Units (RSUs)
Weighted Average Grant Date Fair Value per Share
Granted, weighted average grant date fair value (in dollars per share)		$ 38.90	$ 38.68
Restricted Stock Units (RSUs) \| Obagi Cosmeceuticals
Shares
Outstanding, beginning balance (in shares)	234,842	243,307	0
Granted (in shares)		1,754	243,307
Vested (in shares)		0	0
Exercised (in shares)		0	0
Forfeited (in shares)		10,219	0
Outstanding, ending balance (in shares)		234,842	243,307
Weighted Average Grant Date Fair Value per Share
Outstanding beginning balance, weighted average grant date fair value (in dollars per share)	$ 38.90	$ 38.68	$ 0
Granted, weighted average grant date fair value (in dollars per share)		68.19	38.68
Vested, weighted average grant date fair value (in dollars per share)		0	0
Forfeited, weighted average grant date fair value (in dollars per share)		38.68	0
Outstanding ending balance, weighted average grant date fair value (in dollars per share)		$ 38.90	$ 38.68

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

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Paragraph 2
-Subparagraph (c)(2)(ii)
-Publisher FASB
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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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No definition available.

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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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- Definition

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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- Definition

Number of non-option equity instruments exercised by participants.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-Paragraph 2
-Subparagraph (c)(1)(iv)(2)
-SubTopic 10
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Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Exercised, Weighted Average Grant Date Fair Value

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No definition available.

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