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Business Segments and Geographic Information - Schedule of Pre-Tax Income Reconciliation of Segments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Pre-Tax Income Reconciliation of Segments |  |  |
Operating income from segments | $ 415,946 | $ 486,339 | $ 449,180
Unallocated amounts: |  |  |
General and Administrative Expenses | (193,372) | (185,926) | (184,515)
Net interest expense | (103,765) | (122,090) | (115,348)
Gain (Loss) on Extinguishment of Debt | 5,319 | (4,795) |
Income Before Income Taxes and Equity in Earnings of Affiliates | 124,128 | 173,528 | 149,317
Assets | 4,460,126 | 4,317,534 |
Operating Segments |  |  |
Pre-Tax Income Reconciliation of Segments |  |  |
Operating income from segments | 415,946 | 486,339 | 449,180
Unallocated amounts: |  |  |
Assets | 4,075,920 | 4,185,452 | 4,122,830
U.S. Secure Services | Operating Segments |  |  |
Pre-Tax Income Reconciliation of Segments |  |  |
Operating income from segments | 298,952 | 322,506 | 297,453
Unallocated amounts: |  |  |
Assets | 2,529,375 | 2,618,629 | 2,590,722
GEO Care | Operating Segments |  |  |
Pre-Tax Income Reconciliation of Segments |  |  |
Operating income from segments | 97,330 | 147,036 | 138,911
Unallocated amounts: |  |  |
Assets | 1,058,505 | 1,112,880 | 1,063,484
International Services | Operating Segments |  |  |
Pre-Tax Income Reconciliation of Segments |  |  |
Operating income from segments | 19,610 | 16,723 | 12,816
Unallocated amounts: |  |  |
Assets | 85,110 | 82,097 | 84,911
Facility Construction and Design | Operating Segments |  |  |
Pre-Tax Income Reconciliation of Segments |  |  |
Operating income from segments | 54 | 74 |
Unallocated amounts: |  |  |
Assets | $ 402,930 | $ 371,846 | $ 383,713

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