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

Commitments - Additional Information (Detail)

v3.26.1

Commitments - Additional Information (Detail) - USD ($) $ in Thousands			3 Months Ended		12 Months Ended
	Mar. 20, 2025	Feb. 09, 2024	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Gain on NV Management Agreement			$ 0	$ 12,085
Cash			11,136		$ 11,650
Other Assets, Current			4,226		4,643
Cash			$ 11,136		11,650
Massachusetts Purchase Agreement [Member]
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Proceeds from sale of assets		$ 3,000
Cash proceeds from sale of assets		500
Remaining amount to be received in monthly installments		2,500
Debt instrument, payment towards outstanding principal amount		$ 2,000
Debt instrument, interest rate stated percentage		7.00%
Provision for Loan, Lease, and Other Losses					1,800
Nevada Management Agreement [Member]
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Debt instrument, interest rate stated percentage		7.00%
Nevada Management Agreement [Member] \| NV CCB
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Gain on NV Management Agreement	$ 5,700
Cash	3,500
Cash	$ 3,500
Minimum [Member]
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Operating leases with renewal options			1 year
Maximum [Member]
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Operating leases with renewal options			15 years
Promissory Notes [Member] \| Massachusetts Purchase Agreement [Member]
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Debt instrument, payment towards outstanding principal amount		$ 500
Interest Receivable			$ 500		500
Promissory Notes [Member] \| Nevada Management Agreement [Member] \| NV CCB
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Interest Receivable			1,800		$ 2,200
Other Assets, Current			$ 800

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