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FAIR VALUE MEASUREMENTS AND DISCLOSURES (Tables) | 12 Months Ended
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Dec. 31, 2019
Fair Value Disclosures [Abstract] |
Schedule of Fair Value Other Financial Instruments Measured | The following table provides the fair value hierarchy for our other financial instruments measured as of December 31, 2019:
(In thousands) |  | Total |  |  | Quoted prices in active markets (Level 1) |  |  | Significant observable inputs (Level 2) |  |  | Significant unobservable inputs (Level 3) |
Money market cash equivalents |  | $ | 159,401 |  |  |  | 159,401 |  |  |  | — |  |  |  | — |
Total fair value of assets |  | $ | 159,401 |  |  |  | 159,401 |  |  |  | — |  |  |  | — |
The following table provides the fair value hierarchy for our other financial instruments measured as of December 31, 2018:
(In thousands) |  | Total |  |  | Quoted prices in active markets (Level 1) |  |  | Significant observable inputs (Level 2) |  |  | Significant unobservable inputs (Level 3) |
Money market cash equivalents |  | $ | 327,542 |  |  |  | 327,542 |  |  |  | — |  |  |  | — |
Total fair value of assets |  | $ | 327,542 |  |  |  | 327,542 |  |  |  | — |  |  |  | — |

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