INCOME TAXES - Total Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Current tax expense:
Federal		$ 0	$ 0
State and local		0	0
Total current tax expense		0	0
Deferred tax expense:
Federal		0	0
State and Local		676	0
Total deferred tax expense		676	0
Total income tax expense	[1]	$ 676	$ 0

[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 Form 10-Q basis of presentation in Note 1—Description of the Organization and Summary of Significant Accounting Policies, for further information on the Company’s basis of presentation.