EQUITY-BASED COMPENSATION - Stock option activity (Details) - Employee Stock Option - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2026
Number of Options
Outstanding, Beginning of Period	3,663	3,663	3,663
Forfeited	(2)
Outstanding, End of Period	3,661	3,663	3,661
Exercisable, number, End of Period	42		42
Options, Weighted Average Exercise Price
Options, Beginning of Period, weighted average exercise price	$ 647.09	$ 647.09	$ 647.09
Options forfeited, weighted average exercise price	13,869
Options, End of Period, weighted average exercise price	639.87	$ 647.09	639.87
Options exercisable, End of Period, weighted average exercise price	$ 6,888.71		$ 6,888.71
Weighted Average Remaining Contractual Term
Options, End of Period, weighted average remaining contractual term	9 years 3 months 18 days	9 years 7 months 6 days
Options exercisable, End of Period, weighted average remaining contractual term	8 years 10 months 24 days
Unrecognized compensation expense	$ 1,349		$ 1,349
Unrecognized compensation, period for recognition			2 years 2 months 12 days

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for option under share-based payment arrangement.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted-average contractual term remaining for vested portion of option outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Weighted-average contractual term remaining for option award outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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