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EARNINGS PER COMMON SHARE - Shares of common stock underlying RSUs (Details) - shares | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Earnings Per Common Share |  |  |  |  |
Number of underlying shares | 256,740 | 248,112 | 241,076 |  |
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric | 68,360 | 98,098 | 118,085 |  |
Number of shares in diluted weighted average number of shares pursuant to stockholder return metric | 126,786 | 42,625 | 37,513 |  |
Total | 195,146 | 140,723 | 155,598 |  |
Common shares not included in calculation due applicable metric had not been met at measurement dates | 61,594 | 107,389 | 85,478 |  |
Options outstanding | 0 | 0 | 0 |  |
July 16, 2024 |  |  |  |  |
Earnings Per Common Share |  |  |  |  |
Number of underlying shares | 88,250 |  |  |  |
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric | 16,955 |  |  |  |
Number of shares in diluted weighted average number of shares pursuant to stockholder return metric | 44,125 |  |  |  |
Total | 61,080 |  |  |  |
Common shares not included in calculation due applicable metric had not been met at measurement dates | 27,170 |  |  |  |
July 1, 2023 |  |  |  |  |
Earnings Per Common Share |  |  |  |  |
Number of underlying shares | 85,250 | 85,250 |  |  |
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric | 21,564 | 23,237 |  |  |
Number of shares in diluted weighted average number of shares pursuant to stockholder return metric | 42,625 | 42,625 |  |  |
Total | 64,189 | 65,862 |  |  |
Common shares not included in calculation due applicable metric had not been met at measurement dates | 21,061 | 19,388 |  |  |
July 1, 2022 |  |  |  |  |
Earnings Per Common Share |  |  |  |  |
Number of underlying shares | 83,240 | 83,240 | 85,350 |  |
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric | 29,841 | 35,050 | 40,222 |  |
Number of shares in diluted weighted average number of shares pursuant to stockholder return metric | 40,036 |  |  |  |
Total | 69,877 | 35,050 | 40,222 |  |
Common shares not included in calculation due applicable metric had not been met at measurement dates | 13,363 | 48,190 | 45,128 |  |
August 3, 2021 |  |  |  |  |
Earnings Per Common Share |  |  |  |  |
Number of underlying shares |  | 79,622 | 80,700 |  |
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric |  | 39,811 | 40,350 |  |
Total |  | 39,811 | 40,350 |  |
Common shares not included in calculation due applicable metric had not been met at measurement dates |  | 39,811 | 40,350 |  |
August 3, 2020 |  |  |  |  |
Earnings Per Common Share |  |  |  |  |
Number of underlying shares |  |  | 75,026 |  |
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric |  |  | 37,513 |  |
Number of shares in diluted weighted average number of shares pursuant to stockholder return metric |  |  | 37,513 |  |
Total |  |  | 75,026 |  |
RSUs |  |  |  |  |
Earnings Per Common Share |  |  |  |  |
Number of shares vested | 39,811 | 74,988 | 64,488 |  |
Number of shares forfeited | 39,811 | 3,226 | 10,538 |  |
Performance cycle | 3 years | 3 years | 3 years | 3 years | 3 years
RSUs | August 3, 2021 |  |  |  |  |
Earnings Per Common Share |  |  |  |  |
Number of shares vested |  | 39,811 |  |  |
Number of shares forfeited |  | 39,811 |  |  |
RSUs | August 3, 2020 |  |  |  |  |
Earnings Per Common Share |  |  |  |  |
Number of shares vested |  |  | 74,988 |  |
Number of shares forfeited |  |  | 38 |  |

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