Summary of Business Operations and Significant Accounting Policies (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Jan. 01, 2012
Summary of Business Operations and Significant Accounting Policies [Abstract]
Foreign currency translation adjustments, net of tax attributable to The GEO Group, Inc. [1]	$ 5,755	[1]	$ 4,078	[1]
Unrealized (loss)/gain on derivatives, net of tax	(457)		19
Pension adjustments, net of tax	(2,628)		(2,167)
Total	$ 2,670		$ 1,930

[1] The foreign currency translation adjustment, net of tax, related to noncontrolling interests was not significant for the fiscal years ended December 31, 2012 or January 1, 2012.