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Restructuring Charges (Tables)
12 Months Ended
Dec. 31, 2019
Restructuring Charges  
Schedule of restructuring accrual activities

    

Personnel

    

Facility

    

Severance and

Related Costs

Related Costs

and Other

Total

(in thousands)

Balance - December 31, 2016

$

1,796

$

$

1,796

Provision

 

4,714

 

5,257

 

9,971

Payments

 

(4,990)

 

(5,257)

 

(10,247)

Balance - December 31, 2017

 

1,520

1,520

Provision

 

4,681

2,714

7,395

Payments

 

(4,058)

(2,644)

(6,702)

Balance - December 31, 2018

2,143

70

2,213

Provision

5,803

203

6,006

Payments

(5,105)

(273)

(5,378)

Balance - December 31, 2019

$

2,841

$

$

2,841