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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Standards Update 2016-02 | Restatement of beginning balances |
Summary of impacts of adoption of recent accounting pronouncements | The impact of adoption of the standard to previously reported results is shown below.
| Balance at December 31, 2018 | Adjustments | Balance at January 1, 2019
Consolidated Balance Sheets |  |  |
Operating lease right-of-use assets | $ | — |  | $ | 83,222 |  | $ | 83,222 |
Prepaid and other | 118,245 |  | (1,383) |  | 116,862 |
Property, plant and equipment | 991,613 |  | 5,876 |  | 997,489 |
Current maturities of long-term obligations, net of unamortized debt issuance costs | 62,678 |  | 2,631 |  | 65,309 |
Accounts payable, accrued and other liabilities | 525,199 |  | 20,508 |  | 545,707 |
Operating lease liabilities | — |  | 61,331 |  | 61,331 |
Long-term obligations, net of unamortized debt issuance costs | 1,125,993 |  | 3,245 |  | 1,129,238 |

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