Restructuring Costs (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Restructuring and Related Activities [Abstract] | ||||
| Workforce reduction | 13.00% | 13.00% | ||
| Restructuring costs | $ 4,600 | $ 4,611 | $ 0 | $ 0 |
| Liabilities | $ 200 | $ 200 | ||
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Percentage of the total number of positions eliminated as of the balance sheet date since inception of the restructuring plan(s). No definition available.
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| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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