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Restructuring Activities (Tables)
 12 Months Ended
Dec. 31, 2018
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 December 31, 2018 and 2017:

 

(in thousands)

 

Accrued

Restructuring

Expenses at

December 31,

2017

 

 

Expenses

 

 

Less: Payments

 

 

Accrued

Restructuring

Expenses at

December 31,

2018

 

Severance, benefits and related costs

   due to workforce reduction

 

$

628

 

 

$

1,289

 

 

$

(996

)

 

$

921

 

Totals

 

$

628

 

 

$

1,289

 

 

$

(996

)

 

$

921

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(in thousands)

 

Accrued

Restructuring

Expenses at

December 31,

2016

 

 

Expenses

 

 

Less: Payments

 

 

Accrued

Restructuring

Expenses at

December 31,

2017

 

Severance, benefits and related costs

   due to workforce reduction

 

$

774

 

 

$

9,521

 

 

$

(9,667

)

 

$

628

 

Totals

 

$

774

 

 

$

9,521

 

 

$

(9,667

)

 

$

628