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Income Taxes - Deferred Tax Assets & Liabilities, Balance Sheet Location (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Income Taxes [Line Items] |  |
Deferred tax assets | $ 25,120 | $ 27,695
Deferred tax liabilities | (7,185) | (6,570)
Net deferred tax liabilities | (6,711) | (6,570)
Other noncurrent assets |  |
Income Taxes [Line Items] |  |
Deferred tax assets | $ 474 | $ 0

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