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Restructuring - Summary of Accrued Restructuring Costs (Detail)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
Restructuring Cost And Reserve [Line Items]  
Accrued restructuring costs as of December 31, 2019 $ 2,709
Restructuring charges incurred during the period 10
Amounts paid during the period (1,738)
Accrued restructuring costs as of March 31, 2020 981
One-Time Employee Termination Benefits [Member]  
Restructuring Cost And Reserve [Line Items]  
Accrued restructuring costs as of December 31, 2019 2,706
Restructuring charges incurred during the period 10
Amounts paid during the period (1,735)
Accrued restructuring costs as of March 31, 2020 981
Contract Termination Costs [Member]  
Restructuring Cost And Reserve [Line Items]  
Accrued restructuring costs as of December 31, 2019 3
Amounts paid during the period $ (3)