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BUSINESS ACQUISITIONS (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Business Acquisition [Line Items] |  |  |  |
Change in fair value of contingent consideration | $ (196,000) | $ 6,658,000 | $ (8,249,000) | $ 7,711,000
QuoteWizard |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Change in fair value of contingent consideration | (196,000) | 6,568,000 | (8,249,000) | 6,364,000
Ovation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Change in fair value of contingent consideration | 0 | 90,000 | 0 | 1,270,000
SnapCap |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Change in fair value of contingent consideration | 0 | $ 0 | 0 | $ 77,000
Minimum |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Contingent consideration | 0 |  | 0 |
Maximum |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Contingent consideration | $ 23,400,000 |  | $ 23,400,000 |

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