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FINANCING ARRANGEMENTS (Tables) | 6 Months Ended
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Jun. 30, 2021
Debt Disclosure [Abstract] |
Schedule of Notes | The carrying amount of the 2026 Notes consisted of the following as of June 30, 2021 (in thousands):
| June 30, 2021
Principal amount | $ | 230,000 |
Less: debt discount | (7,346) |
Net carrying amount of liability | $ | 222,654 |
Schedule of Convertible Debt Interest Expense | During the three and six months ended June 30, 2021 and 2020, we recognized total interest costs on the 2026 Notes and the Atairos Notes as follows (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Contractual interest | $ | 1,700 |  |  | $ | 2,032 |  |  | $ | 3,732 |  |  | $ | 4,064 |
Amortization of debt discount | 549 |  |  | 3,607 |  |  | 852 |  |  | 7,123 |
Total | $ | 2,249 |  |  | $ | 5,639 |  |  | $ | 4,584 |  |  | $ | 11,187 |

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