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Acquired Intangible Assets (Tables)
3 Months Ended
Mar. 31, 2021
Acquired Intangible Assets [Abstract]  
Acquired Identifiable Intangible Assets
Acquired identifiable intangible assets consist of the following:

 
 
March 31,
2021
   
December 31,
2020
 
 
 
(In thousands)
 
Customer relationships
 
$
112,440
   
$
111,701
 
Trademarks and trade names
   
6,980
     
6,980
 
Non-compete agreements
   
3,270
     
3,272
 
Patents
   
723
     
723
 
Supply agreements
   
800
     
800
 
Leaseholds
   
160
     
160
 
Total acquired intangible assets
   
124,373
     
123,636
 
Less accumulated amortization (1)
   
(72,272
)
   
(70,221
)
Net acquired intangible assets
 
$
52,101
   
$
53,415
 

(1)
Applies to all intangible assets, except for trademarks and trade names totaling $2.6 million, which have indefinite useful lives and, as such, are not being amortized.