Goodwill and Other Intangible Assets, Net (Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Changes in the Company's goodwill balances
Beginning balance	$ 778,951	$ 615,433
Acquisitions (net of dispositions)	(2,549)	163,473
Foreign currency translation	(43)	45
Ending balance	776,359	778,951
U.S. Corrections & Detention
Changes in the Company's goodwill balances
Beginning balance	317,005	277,774
Acquisitions (net of dispositions)	(639)	39,231
Foreign currency translation	0	0
Ending balance	316,366	317,005
GEO Care
Changes in the Company's goodwill balances
Beginning balance	461,499	337,257
Acquisitions (net of dispositions)	(1,910)	124,242
Foreign currency translation	0	0
Ending balance	459,589	461,499
International Services
Changes in the Company's goodwill balances
Beginning balance	447	402
Acquisitions (net of dispositions)	0	0
Foreign currency translation	(43)	45
Ending balance	$ 404	$ 447

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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-Publisher FASB
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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