iAnthus Capital Holdings, Inc. Annual report pursuant to Section 13 and 15(d)

Intangible Assets - Additional Information (Details)

v3.23.1

Intangible Assets - Additional Information (Details) - USD ($) $ in Millions			12 Months Ended
	Feb. 06, 2023	Feb. 02, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired			$ 19.2	$ 0.9
Finite-Lived Intangible Assets, Remaining Amortization Period			14 years
Amortization of Intangible Assets			$ 16.4	15.4
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)			24.8	5.2
Impairment loss			30.6	5.5
MPX New Jersey LLC [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired			19.1
CBD [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)				$ 0.1
GreenMart Of Nevada NLV LLC GMNV [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)			24.1
iAnthus Capital Management, LLC ("ICM")
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 0.6		0.1
Impairment loss	$ 0.7	$ 0.7	$ 0.7

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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