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RESTRUCTURING (Tables)
12 Months Ended
Dec. 31, 2021
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring Reserve
The following table summarizes the restructuring charges and the liability for restructuring costs still to be paid in the periods indicated:
(in thousands)Facility-related costsPersonnel-related costsOther costsTotal
2021 Activity
Restructuring charges$— $— $— $— 
Costs paid or otherwise settled(1,029)(154)(116)(1,299)
Balance, December 31, 2021$1,834 $— $— $1,834 
2020 Activity
   Restructuring charges$10,188 $339 $1,266 $11,793 
   Costs paid or otherwise settled(8,560)(695)(1,309)(10,564)
Balance, December 31, 2020$2,863 $154 $116 $3,133 
2019 Activity
Restructuring charges$1,373 $1,836 $1,302 $4,511 
Costs paid or otherwise settled(138)(1,326)(1,143)(2,607)
Balance, December 31, 2019$1,235 $510 $159 $1,904