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STOCK-BASED COMPENSATION - Summary of RSUs and PSUs (Details) - shares | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024 | Dec. 31, 2023
RSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Outstanding at beginning of period (in shares) | 1,460,702 |  |
Granted (in shares) | 618,896 |  |
Vested and Released (in shares) | (715,753) |  |
Forfeited (in shares) | (49,517) |  |
Outstanding at end of period (in shares) | 1,314,328 | 1,460,702 |
Vested and deferred (in shares) | 21,664 |  |
PSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Outstanding at beginning of period (in shares) | 339,268 |  |
Granted (in shares) | 86,911 |  |
Vested and Released (in shares) | (133,034) |  |
Forfeited (in shares) | (21,138) |  |
Outstanding at end of period (in shares) | 272,007 | 339,268 |
Vested and deferred (in shares) | 0 |  |
PSUs | 2024 PSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Outstanding at beginning of period (in shares) | 87,550 |  |
Granted (in shares) |  | 87,550 |
Outstanding at end of period (in shares) |  | 87,550 |
Performance period | 3 years | 3 years |
PSUs | 2023 PSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Outstanding at beginning of period (in shares) | 118,684 |  |
Granted (in shares) |  |  | 118,684
Outstanding at end of period (in shares) |  | 118,684 |
Performance period | 3 years | 3 years |
PSUs | 2022 PSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Outstanding at beginning of period (in shares) | 133,034 |  |
Outstanding at end of period (in shares) |  | 133,034 |
Performance period |  | 3 years |
PSUs | 2025 PSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |  |
Granted (in shares) | 86,911 |  |
Performance period | 3 years |  |

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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