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v3.20.1

Debt (Tables) | 12 Months Ended
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Dec. 31, 2019
Debt [Abstract] |
Schedule of Interest Information |
| Years Ended December 31,
| 2019 |  | 2018 |  | 2017
| (in thousands)
Interest expense related to debt, including commitment fees | $ | — |  | $ | (257) |  | $ | (997)
Deferred finance cost amortization |  | — |  |  | (191) |  |  | (369)
Interest income |  | 733 |  |  | 270 |  |  | 7
Other interest expense not related to debt |  | — |  |  | 33 |  |  | (55)
Interest income (expense), net | $ | 733 |  | $ | (145) |  | $ | (1,414)
Average effective interest rate, excluding commitment fees |  | N/A |  |  | 7.09% |  |  | 6.72%

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