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INCOME TAXES - Narrative (Details) - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Jan. 27, 2022
Income Tax Examination [Line Items] |  |
Unrecognized tax benefits, would affect effective tax rate | $ 9,200,000 |
Unrecognized tax benefits, reduction resulting from statute of limitations | 29,000 |
U.S. federal net operating loss carryovers | 9,911 |
United Kingdom net operating loss carryovers | $ 70,873 |
S1 Holdco, LLC |  |
Income Tax Examination [Line Items] |  |
Percentage of aggregate tax benefit expected to realized | 85.00% | 85.00%
Percent of expected tax benefit |  | 15.00%
Number of shares issued (in shares) | 330 |
Additional liability amount | $ 1,036 |
TRA payment including interest amount | 0 |
TRA payments due | $ 1,036 |

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