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Summary of Capital Expenditures Including Accrued Amounts (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Total capital expenditures | $ 159,489 | $ 190,741 | $ 487,136
Safety |  |  |
Segment Reporting Information [Line Items] |  |  |
Total capital expenditures | 42,577 | 77,662 | 94,559
Community |  |  |
Segment Reporting Information [Line Items] |  |  |
Total capital expenditures | 2,548 | 5,859 | 15,689
CoreCivic Properties |  |  |
Segment Reporting Information [Line Items] |  |  |
Total capital expenditures | 107,487 | 95,109 | 365,628
Corporate and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Total capital expenditures | $ 6,877 | $ 12,111 | $ 11,260

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- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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