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FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES - Narrative (Details) $ in Thousands | Sep. 30, 2019 USD ($)
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Discounted cash flow | Fair Value, Inputs, Level 3 | Annualized EBITDA and probability of achievement |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Liability for contingent consideration | $ 2,920
Discount rate | 0.073
ASI | Other Current and Long-term Liabilities |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Liability for contingent consideration | $ 2,900

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