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Restructuring Expenses (Tables)
3 Months Ended
Mar. 31, 2020
Restructuring and Related Activities [Abstract]  
Schedule of components of restructuring expenses
The following table displays a rollforward of the changes to the accrued balances as of March 31, 2020 (in thousands): 
Workforce reductionContract terminationOtherTotal
Balance accrued at December 31, 2019$797  $—  $—  $797  
Payments(329) —  —  (329) 
Balance accrued at March 31, 2020$468  $—  $—  $468