Restructuring Activities (Tables)

3 Months Ended

Mar. 31, 2019

Restructuring And Related Activities [Abstract]

Summary of Charges Related to Restructuring Activities

The following table summarizes the charges related to the restructuring activities as of March 31, 2019 and 2018:

(in thousands)	Accrued Restructuring Expenses at December 31, 2018		Expenses		Less: Payments			Accrued Restructuring Expenses at March 31, 2019
Severance, benefits and related costs due to workforce reduction	$	921	$	347	$	(1,059	)	$	209
Totals	$	921	$	347	$	(1,059	)	$	209

(in thousands)	Accrued Restructuring Expenses at December 31, 2017		Expenses		Less: Payments			Accrued Restructuring Expenses at March 31, 2018
Severance, benefits and related costs due to workforce reduction	$	628	$	—	$	(377	)	$	251
Totals	$	628	$	—	$	(377	)	$	251