XML 17 R70.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Subsequent Events (Details) (USD $) | 3 Months Ended | 0 Months Ended |
--- | --- | --- | ---
Mar. 31, 2015 bed | Mar. 31, 2014 | Apr. 29, 2015 | Apr. 28, 2015 bed
Subsequent Event [Line Items] |  |  |  |
Cash dividend per share of common stock declared | $ 0.62 us-gaap_CommonStockDividendsPerShareDeclared | $ 0.57 us-gaap_CommonStockDividendsPerShareDeclared |  |
Number of vacant beds at idle facilities marketed to potential customers | 4,400 geo_NumberOfVacantBedsAtIdleFacilitiesMarketedToPotentialCustomers |  |  |
Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Cash dividend per share of common stock declared |  |  | $ 0.62 us-gaap_CommonStockDividendsPerShareDeclared / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Number of vacant beds at idle facilities marketed to potential customers |  |  |  | 1,740 geo_NumberOfVacantBedsAtIdleFacilitiesMarketedToPotentialCustomers / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

X
- Definition Number of Vacant Beds at Idle Facilities Marketed to Potential Customers + References No definition available. + Details
Name: | geo_NumberOfVacantBedsAtIdleFacilitiesMarketedToPotentialCustomers
Namespace Prefix: | geo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |