Income Taxes - Narrative (Details) - USD ($) |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Income Tax Disclosure [Abstract] | ||||
| Unrecognized tax benefits | $ 7,945,000 | $ 1,755,000 | $ 0 | $ 429,000 |
| Current year tax positions | 3,613,000 | 1,275,000 | 0 | |
| Prior year tax positions | 2,577,000 | 480,000 | 0 | |
| Interest expense related to tax matters | $ 200,000 | $ 0 | $ 0 | |