Charitable Contribution, Date Of Last Required Payment.

No definition available.

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Namespace Prefix:	gtbif_
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Balance Type:	na
Period Type:	duration

- Definition

Charitable Contribution Quarterly Payment.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of the total principal payments made during the annual reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 470
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-Name Accounting Standards Codification
-Topic 942
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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-Name Accounting Standards Codification
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	na
Period Type:	duration

- 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.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Period Type:

- Details

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- Details

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Notes Payable - Schedule of Debt (Parenthetical) (Detail) - USD ($)			9 Months Ended	12 Months Ended
	Apr. 30, 2021	May 22, 2019	Sep. 30, 2021	Dec. 31, 2019	Dec. 31, 2017	Dec. 31, 2020
Debt Instrument [Line Items]
Charitable Contribution Quarterly Payment				$ 200,000	$ 50,000
Charitable Contribution, Date Of Last Payment				May 2024	October 2024
Debt Instrument Interest Rate				7.00%	2.17%
Debt face value			$ 15,417,500
Private Placement Debt May 22, 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate		12.00%
Debt Issuance Date		May 22, 2019
Debt face value		$ 105,466,429
Debt Maturity Date		May 22, 2023
Debt Instrument Carrying Amount	$ 9,045,187					$ 10,511,335
Private Placement Debt April 30, 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate	7.00%
Debt Issuance Date	Apr. 30, 2021
Debt face value	$ 216,734,258
Debt Maturity Date	Apr. 30, 2024
Debt Instrument Carrying Amount			21,570,925
Mortgage Notes [Member]
Debt Instrument [Line Items]
Debt face value			$ 10,437,000
Debt Maturity Date			Aug. 01, 2041
Debt Instrument Carrying Amount			$ 165,159			174,223
Debt Instrument, Annual Principal Payment			$ 181,551			$ 50,322