iAnthus Capital Holdings, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- Organization and Description of Business (Policies)
Notes Tables
Notes Details

Related Party Transactions - Additional Information (Detail)

v3.25.3

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands			9 Months Ended
	Sep. 02, 2025	Feb. 05, 2025	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Apr. 05, 2024
Related Party Transaction [Line Items]
Due to Related Parties			$ 187,445		$ 187,386
Proceeds from Sale of Notes Receivable			$ 1,715	$ 0
Other Equity Method Investees [Member]
Related Party Transaction [Line Items]
Company's acquisition equity interests			5.00%
Lenders [Member]
Related Party Transaction [Line Items]
Related Party Interest pyable			$ 100		200
Deferred Professional Fees [Member] \| Lenders [Member]
Related Party Transaction [Line Items]
Due to Related Parties						$ 6,300
Deferred Professional Fees [Member] \| Lenders [Member] \| Other Equity Method Investees [Member]
Related Party Transaction [Line Items]
Due to Related Parties		$ 1,000	$ 2,200		$ 9,200
Company's acquisition equity interests		8.00%
Severance payments		$ 5,000
AZ Note [Member] \| Deferred Professional Fees [Member]
Related Party Transaction [Line Items]
Due to Related Parties	$ 900
Proceeds from Sale of Notes Receivable	$ 300
Maximum [Member] \| Deferred Professional Fees [Member] \| Lenders [Member]
Related Party Transaction [Line Items]
Related party transaction rate of interest			20.00%
Minimum [Member] \| Deferred Professional Fees [Member] \| Lenders [Member]
Related Party Transaction [Line Items]
Related party transaction rate of interest			12.00%

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