Debt Guarantees (Details)	6 Months Ended			6 Months Ended
	Jun. 30, 2014 ZAR	Jun. 30, 2014 USD ($) guarantee	Jun. 30, 2014 CAD	Jun. 30, 2014 Geo Amey USD ($)	Jun. 30, 2014 Geo Amey GBP (£)
Line of Credit Facility [Line Items]
Guaranteed obligations	26,700,000	$ 2,500,000
Working Capital Line of Credit Issued to GEO Amey					12,000,000
Remaining Guarantee under Letter of Credit	26,700,000
Maximum Loan Amount under Stand by Facility	20,000,000	1,890,600.0
Potential Estimated Exposure of tax obligations		2,300,000	2,500,000
Liability Related to Potential Tax Exposure		2,000,000
Number of letters of guarantee outstanding under separate international facilities relating to performance guarantees		9	9
Letters of Guarantee Outstanding Relating to Performance Guarantees		14,300,000
Ownership percentage in South African Custodial Services Pty. Limited				50.00%	50.00%
Due from Affiliate, Noncurrent				$ 20,500,000	£ 12,000,000