Severance Costs Related To Voluntary Separation Plan (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($) employee
Severance Costs Related To Voluntary Separation Plan
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal \| $	$ 5,828
Number of Employees accepted voluntary separation package \| employee	53

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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