iAnthus Capital Holdings, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Contingencies And Guarantees - Additional Information (Detail)

v3.25.1

Contingencies And Guarantees - Additional Information (Detail) $ / shares in Units, $ in Millions, $ in Millions					12 Months Ended
	Dec. 03, 2024 CAD ($) $ / shares shares	Jun. 20, 2023 USD ($)	Apr. 05, 2023 USD ($)	Aug. 19, 2021 USD ($)	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023 shares	May 23, 2022	May 19, 2020 USD ($)
Contingencies And Guarantees [Line Items]
Damages Sought Value		$ 4.5
Claim for alleged payments					$ 1.3
Claim for right to receive					$ 115.0
Common Stock, Shares, Issued \| shares					6,678,395,000	6,510,527,000
Recapitalization Costs			$ 2.2
Ninth Square Company [Member]
Contingencies And Guarantees [Line Items]
Common Stock Per Share \| $ / shares	$ 0.01
Common Stock, Shares, Issued \| shares	5,000,000
Pending Litigation [Member] \| LMS Wellness Benefit LLC [Member] \| William Huber [Member]
Contingencies And Guarantees [Line Items]
Noncontrolling interest, Ownership percentage by parent							100.00%
Maximum [Member]
Contingencies And Guarantees [Line Items]
Damages Sought Value				$ 10.0
Minimum [Member]
Contingencies And Guarantees [Line Items]
Damages Sought Value				$ 1.0
Claim against ICHMPX ULC And MPX [Member]
Contingencies And Guarantees [Line Items]
Cash payment	$ 0.5
Loss Contingency Accrual					$ 3.0
Claim by prior shareholders of Grow Healthy Holdings LLC [Member]
Contingencies And Guarantees [Line Items]
Loss Contingency Accrual					$ 22.0
Claim by Himed LLC an equity holder and holder of unsecured debentures [Member]
Contingencies And Guarantees [Line Items]
Debt instrument face value								$ 5.0
Common Stock, Shares, Issued \| shares					20,000,000
Counterclaim against Canaccord[Member]
Contingencies And Guarantees [Line Items]
Payments for Legal Settlements					$ 0.3

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