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Business Segments and Geographic Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Operating Income: |  |  |  |
Operating income | $ 65,957 | $ 53,281 | $ 125,124 | $ 105,952
Operating Segments |  |  |  |
Revenues: |  |  |  |
Revenues | 548,350 | 445,945 | 1,058,535 | 873,314
Operating Income: |  |  |  |
Operating income | 102,861 | 85,455 | 196,089 | 169,974
Operating Segments | U.S. Corrections & Detention |  |  |  |
Revenues: |  |  |  |
Revenues | 341,573 | 304,329 | 679,943 | 589,938
Operating Income: |  |  |  |
Operating income | 74,989 | 62,617 | 142,427 | 126,213
Operating Segments | GEO Care |  |  |  |
Revenues: |  |  |  |
Revenues | 96,529 | 82,658 | 189,943 | 162,014
Operating Income: |  |  |  |
Operating income | 26,580 | 19,218 | 50,551 | 37,724
Operating Segments | International Services |  |  |  |
Revenues: |  |  |  |
Revenues | 38,497 | 38,543 | 76,052 | 79,197
Operating Income: |  |  |  |
Operating income | 1,074 | 3,270 | 2,836 | 5,085
Operating Segments | Facility Construction & Design |  |  |  |
Revenues: |  |  |  |
Revenues | 71,751 | 20,415 | 112,597 | 42,165
Operating Income: |  |  |  |
Operating income | $ 218 | $ 350 | $ 275 | $ 952

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