Debt instrument maturity year.

No definition available.

Name:	geo_DebtInstrumentMaturityYear
Namespace Prefix:	geo_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument, percentage of debt issued cash on new notes at par.

+ References

No definition available.

+ Details

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- Definition

Debt instrument, percentage of debt issued on new notes at par.

+ References

No definition available.

+ Details

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- Definition

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

+ References

+ 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.

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- 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.

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- Definition

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

+ References

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+ Details

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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- Definition

The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

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Debt (5.125% Senior Notes due 2023 and 5.875% Senior Notes due 2024) (Details) - USD ($)		6 Months Ended
	Oct. 06, 2022	Jun. 30, 2023	Sep. 30, 2022	Aug. 19, 2022
5.875% Senior Notes due 2024
Debt Instrument [Line Items]
Debt instrument, face amount		$ 178,300,000
Debt instrument maturity year		2024
Stated interest rate		5.875%		5.875%
Percentage of debt issued cash on new notes at par		100.00%
Percentage of debt issued on new notes at par		103.00%
Long-term debt		$ 23,300,000
5.125% Senior Notes due 2023
Debt Instrument [Line Items]
Debt instrument, face amount		$ 100,600,000
Debt instrument maturity year		2023
Stated interest rate		5.125%		5.125%
Percentage of debt issued cash on new notes at par		100.00%
Percentage of debt issued on new notes at par		105.00%
Long-term debt			$ 125,700,000
Repayment of debt	$ 125,700,000
10.500% Senior Second Linen Secured Notes
Debt Instrument [Line Items]
Debt instrument, face amount		$ 286,500,000
Stated interest rate		10.50%
Debt instrument, maturity date		Jun. 30, 2028