Reduction in Workforce - Schedule of Amount Expected to be Incurred and Liability Related to Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2020
Accrued restructuring costs as of December 31, 2019		$ 516
Restructuring charges incurred during the year	$ 0	100
One-time Employee Termination Benefits
Accrued restructuring costs as of December 31, 2019		516
Restructuring charges incurred during the year		112
Amounts paid during the year		$ (628)

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.

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