XML 88 R77.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Condensed Consolidating Financial Information - Narrative (Details) | Jun. 30, 2018
--- | ---
Debt Instrument [Line Items] |
Percentage of subsidiary owned | 100.00%
Senior Notes | 6.00% Senior Notes, due 2026 |
Debt Instrument [Line Items] |
Notes bear interest at a rate | 6.00%
Senior Notes | Senior Notes Due 2023 |
Debt Instrument [Line Items] |
Notes bear interest at a rate | 5.125%
Senior Notes | 5.875% Senior Notes due 2024 |
Debt Instrument [Line Items] |
Notes bear interest at a rate | 5.875%
Senior Notes | 5.875% Senior Notes due 2022 |
Debt Instrument [Line Items] |
Notes bear interest at a rate | 5.875%

X
- Definition Percentage of subsidiary owned. + References No definition available. + Details
Name: | geo_PercentageOfSubsidiaryOwned
Namespace Prefix: | geo_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=geo_SixPercentSeniorNotesDue2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=geo_SeniorNotesDue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=geo_FivePointEightSevenFivePercentSeniorNotesDue2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=geo_FivePointEightSevenFivePercentSeniorNotesDue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |