NET INCOME PER SHARE (Details) $ / shares in Units, shares in Thousands, $ in Thousands			3 Months Ended				9 Months Ended
		Jun. 08, 2022	Sep. 30, 2022 USD ($) $ / shares shares		Sep. 30, 2021 USD ($) $ / shares shares		Sep. 30, 2022 USD ($) $ / shares shares		Sep. 30, 2021 USD ($) $ / shares shares
Basic:
Net income attributable to Class A common shareholders	[1]		$ 14,936		$ 0		$ 25,239		$ 0
Net income attributable to Class A common shareholders (in shares) | shares	[1],[2]		41,816		0		40,042		0
Net income attributable to Class A common shareholders (in dollars per share) | $ / shares			$ 0.36		$ 0		$ 0.63		$ 0
Less: Net income available to participating unvested restricted Class A common shareholders(4)			$ (4,174)		$ 0		$ (8,358)		$ 0
Excess preferred carrying amount over consideration paid			32,900		0		32,900		0
Net income attributable to vested Class A common shareholders			$ 43,662		$ 0		$ 49,781		$ 0
Net income attributable to vested Class A common shareholders (in USD per share) | $ / shares	[1]		$ 1.04		$ 0		$ 1.24		$ 0
Effect of dilutive securities:
Unvested Class A common shares			$ 0		$ 0		$ 0		$ 0
Replacement awards (in shares) | shares			39		0		33		0
Replacement awards (in USD per share) | $ / shares			$ 0		$ 0		$ 0		$ 0
Diluted:
Net income attributable to Class A Common Shareholders			$ 43,662		$ 0		$ 49,781		$ 0
Net income (loss) attributable to Class A common shareholders (in shares) | shares	[1],[2]		41,855		0		40,075		0
Net income (loss) attributable to Class A common shareholders (in USD per share) | $ / shares			$ 1.04	[1]	$ 0	[1]	$ 1.24	[1]	$ 0
Common Stock | Class A Common Stock
Equity, Class of Treasury Stock [Line Items]
Stock split, conversion ratio		2

[1] The results of the legacy ALTM business are not included in the Company’s consolidated financials prior to February 22, 2022. Refer to the basis of presentation in Note 1—Description of the Organization and Summary of Significant Accounting Policies in the Notes to our Condensed Consolidated Financial Statements in this Form 10-Q for further information.

[2] Share amounts have been retroactively restated to reflect the Company’s Stock Split (as defined in Note 10—Equity and Warrants), which was effected on June 8, 2022. Refer to Note 10 – Equity and Warrants in the Notes to our Condensed Consolidated Financial Statements in this Form 10-Q for further information.