Restructuring Expense (Tables)

9 Months Ended

Sep. 30, 2019

Restructuring Expense

Summary of restructuring activities

		Severance and Other Restructuring Costs
		Three Months Ended		Nine Months Ended
	September 30, 2019
Accrued restructuring, beginning of the period	$	1,047	$	—
Provision for restructuring expense		—		1,561
Cash payments		(441)		(955)
Accrued restructuring, end of the period	$	606	$	606