iAnthus Capital Holdings, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Detail)

Long-Term Debt - Additional Information (Detail) $ / shares in Units, $ in Thousands								3 Months Ended
	Feb. 02, 2021 USD ($)	Jul. 13, 2020 USD ($)	Dec. 20, 2019 USD ($)	Sep. 30, 2019 USD ($)	May 02, 2019 USD ($) $ / shares shares	Mar. 18, 2019 USD ($) $ / shares shares	May 14, 2018 USD ($) $ / shares	Mar. 31, 2022 USD ($) $ / shares	Mar. 31, 2021 USD ($)	Feb. 01, 2022 USD ($)	Dec. 31, 2021 USD ($) $ / shares	Apr. 04, 2021 USD ($)	Mar. 31, 2019
Debt Instrument [Line Items]
Debt instrument face value										$ 4,600
Interest expense								$ 400	$ 400
Accretion expense								766	4,852
Long term debt default amount principal								97,500
Secured debt long term fair value								252,706			$ 242,104
Unamortized debt issuance costs								$ 2,200			$ 2,500
Class of warrants or rights exercise price per share \| $ / shares								$ 2.49			$ 3.56
Cash balance								$ 14,078			$ 13,244
Private Placement [Member] \| March 2019 Equity Warrants [Member]
Debt Instrument [Line Items]
Debt instrument maturity date						Mar. 15, 2023
Interest rate on secured notes													8.00%
Debt instrument terms of interest payment						payable quarterly
Class of warrants or rights number of shares covered by warrants or rights \| shares						2,177,291
Class of warrants or rights exercise price per share \| $ / shares						$ 6.43
Class of warrant or rights expiry date					Mar. 15, 2022
Private Placement [Member] \| May 2019 Equity Warrants [Member]
Debt Instrument [Line Items]
Debt instrument maturity date					Mar. 15, 2023
Debt instrument terms of interest payment					payable quarterly
Class of warrants or rights number of shares covered by warrants or rights \| shares					1,555,207
Class of warrants or rights exercise price per share \| $ / shares					$ 6.43
Private Placement [Member] \| In Cash [Member] \| March 2019 Equity Warrants [Member]
Debt Instrument [Line Items]
Percentage of total interest that can be paid through cash or in kind route						50.00%
I Anthus New Jersey LLC [Member]
Debt Instrument [Line Items]
Description about qualified financing								“Qualified Financing” means a transaction or series of related transactions resulting in net proceeds to the Company of not less than $10 million from the subscription of the Company’s securities, including, but not limited to, a private placement or rights offering.
Threshold limit of qualified financing, net proceeds not less than the subscription of securities								$ 10,000
Secured Debt [Member]
Debt Instrument [Line Items]
Long term debt exit fee payable								10,000
Secured Debt [Member] \| Tranche One [Member]
Debt Instrument [Line Items]
Debt instrument face value							$ 40,000
Debt instrument maturity date							May 14, 2021
Interest rate on secured notes							16.00%
Debt instrument conversion price per share \| $ / shares							$ 3.08
Debt instrument beneficial conversion feature							$ 7,900
Interest expense								1,700	1,700
Accretion expense								0	2,300
Long term debt default amount principal								97,500				$ 60,000
Long term debt default amount accrued interest								34,800				$ 10,800
Long term debt exit fee payable principal and interest								15,800	14,200
Long term debt exit fee payable								10,300	10,300
Interest payable on exit fee								$ 5,500	3,900
Debt instrument financial covenant description								The terms also contain a financial covenant requiring the Company’s asset value to be 1.75 times the total net debt at each quarter end and requires that the Company maintain a minimum cash balance of $1.0 million while the Tranche One Secured Notes remain outstanding (the “market value test”)
Financial covenant requires to maintain ratio of asset value to net debt								1.75
Cash balance								$ 1,000
Secured Debt [Member] \| Tranche One [Member] \| Accretion Expense [Member]
Debt Instrument [Line Items]
Amortization of debt discount								0	700
Secured Debt [Member] \| Tranche Two [Member]
Debt Instrument [Line Items]
Debt instrument face value				$ 20,000
Debt instrument maturity date				May 14, 2021
Interest rate on secured notes				13.00%
Interest expense								800	800
Accretion expense								0	500
Secured Debt [Member] \| Tranche Three [Member]
Debt Instrument [Line Items]
Debt instrument face value			$ 36,200
Debt instrument maturity date			May 14, 2021
Interest rate on secured notes			13.00%
Interest expense								1,400	1,400
Accretion expense								0	1,100
Secured Debt [Member] \| Tranche Four [Member]
Debt Instrument [Line Items]
Debt instrument face value		$ 14,700
Debt instrument maturity date		Jul. 13, 2025
Interest expense								300	300
Accretion expense								100	100
Debt instrument original issue discount percentage		8.00%
New Jersey Senior Secured Bridge Notes [Member] \| I Anthus New Jersey LLC [Member]
Debt Instrument [Line Items]
Debt instrument face value	$ 11,000
Debt instrument maturity date	Feb. 02, 2023
Interest rate on secured notes	14.00%
Interest expense								400	200
Accretion expense								100	100
Secured debt long term fair value	$ 10,300
Unamortized debt issuance costs	$ 700
Escrow deposit								2,600			$ 3,300
New Jersey Senior Secured Bridge Notes [Member] \| Prospective Recapitalization Transaction [Member] \| I Anthus New Jersey LLC [Member]
Debt Instrument [Line Items]
Interest rate on secured notes	8.00%
New Jersey Senior Secured Bridge Notes [Member] \| Prospective Default [Member] \| I Anthus New Jersey LLC [Member]
Debt Instrument [Line Items]
Interest rate on secured notes	25.00%
March 2019 Debentures [Member] \| Private Placement [Member]
Debt Instrument [Line Items]
Debt instrument face value						$ 35,000
Interest expense								700	700
Accretion expense								$ 400	400
March 2019 Debentures [Member] \| Private Placement [Member] \| In Cash [Member]
Debt Instrument [Line Items]
Percentage of total interest that can be paid through cash or in kind route						50.00%
May 2019 Debentures [Member] \| Private Placement [Member]
Debt Instrument [Line Items]
Debt instrument face value					$ 25,000
Interest rate on secured notes								8.00%
Interest expense								$ 500	500
Accretion expense								$ 200	$ 200