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Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Finite Lived Intangible Assets [Line Items]      
Goodwill impairment loss $ 76.0    
Percentage that the fair value exceeded the carrying value 22.00%    
Discount rate utilized to adjust cash flow 10.00%    
Discount rate increase impacting carrying value to exceed fair value 1.00%    
Percentage of goodwill 24.00%    
Discount rate decrease impacting fair value to exceed carrying value 1.00%    
Amortization expense   $ 15.0 $ 16.7
Facility management contracts      
Finite Lived Intangible Assets [Line Items]      
Weighted average period before renewal or extension   2 years 3 months 18 days  
U.S. Secure Services      
Finite Lived Intangible Assets [Line Items]      
Goodwill impairment loss $ 0.0    
GEO Secure Services      
Finite Lived Intangible Assets [Line Items]      
Percentage that the fair value exceeded the carrying value 6.00%