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GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of intangible assets (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 329,568 | $ 313,812
Accumulated Amortization | (162,483) | (136,667)
Intangibles Net | 167,085 | 177,145
Tradenames | 20,100 | 21,100
Gross Carrying Value | 349,668 | 334,912
Intangibles Net | 187,185 | 198,245
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 272,330 | 263,721
Accumulated Amortization | (129,721) | (108,644)
Intangibles Net | $ 142,609 | 155,077
Customer relationships | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life in Years | 1 year |
Customer relationships | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life in Years | 16 years |
Domain names |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life in Years | 7 years |
Gross Carrying Value | $ 175 | 185
Accumulated Amortization | (173) | (183)
Intangibles Net | $ 2 | 2
Advertising relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life in Years | 8 years |
Gross Carrying Value | $ 100 | 100
Accumulated Amortization | (100) | (94)
Intangibles Net | 0 | 6
Internally developed software and other intangibles |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 32,935 | 28,985
Accumulated Amortization | (22,506) | (19,613)
Intangibles Net | $ 10,429 | 9,372
Internally developed software and other intangibles | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life in Years | 6 months |
Internally developed software and other intangibles | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life in Years | 10 years |
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 24,028 | 20,821
Accumulated Amortization | (9,983) | (8,133)
Intangibles Net | $ 14,045 | $ 12,688
Trademarks | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life in Years | 3 years |
Trademarks | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life in Years | 10 years |

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