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RESTRUCTURING PLAN (Tables)
 3 Months Ended
Mar. 31, 2020
Restructuring and Related Activities [Abstract]  
Summary of Restructuring Activity
The following table summarizes the Company’s accrued restructuring liability balance and associated activity (in thousands):
 
 
December 31, 2019
 
Additions
 
Cash Payments
 
March 31, 2020
Retention
 
$
935

 
$
119

 
$
(935
)
 
$
119

Severance and severance-related expenses
 
580

 
—

 
(283
)
 
297

Total restructuring liability
 
$
1,515

 
$
119

 
$
(1,218
)
 
$
416