Business Combination (Details 2) (USD $) In Thousands	3 Months Ended	9 Months Ended
Oct. 02, 2011	Oct. 03, 2010	Oct. 02, 2011	Oct. 03, 2010
Pro forma financial information
Pro forma revenues	$ 406,847	$ 401,042	$ 1,220,021	$ 1,225,780
Pro forma net income attributable to The GEO Group, Inc. shareholders	$ 21,567	$ 21,091	$ 63,172	$ 63,266

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=6909870&loc=d3e1392-128463

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