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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2017
Schedule of Useful Life of Property and Equipment | Useful lives for property and equipment are as follows:
Land improvements | 5 – 20 years
Buildings and improvements | 5 – 50 years
Equipment and software | 3 – 10 years
Office furniture and fixtures | 5 years
Schedule of Financial Instruments Having Difference Between Carrying Amount and Fair Value | At December 31, 2017 and 2016, there were no material differences between the carrying amounts and the estimated fair values of CoreCivic's financial instruments, other than as follows (in thousands):
|  | December 31, |
|  | 2017 |  |  | 2016 |
|  | Carrying Amount |  |  | Fair Value |  |  | Carrying Amount |  |  | Fair Value |
Note receivable from APM |  | $ | 3,059 |  |  | $ | 4,511 |  |  | $ | 2,920 |  |  | $ | 4,647 |
Debt |  | $ | (1,459,000 | ) |  | $ | (1,490,063 | ) |  | $ | (1,455,000 | ) |  | $ | (1,459,625 | )

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