XML 22 R10.htm IDEA: XBRL DOCUMENT v3.21.2
PATENTS, NET OF ACCUMULATED AMORTIZATION
 6 Months Ended
Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
PATENTS, NET OF ACCUMULATED AMORTIZATION

4. PATENTS, NET OF ACCUMULATED AMORTIZATION

 

Acacia’s only identifiable intangible assets at June 30, 2021 and December 31, 2020 are patents and patent rights. Patent-related accumulated amortization totaled $288,964,000 and $319,922,000 as of June 30, 2021 and December 31, 2020, respectively. Acacia’s patents have remaining estimated economic useful lives ranging from twenty-nine to fifty-five months. The weighted-average remaining estimated economic useful life of Acacia’s patents is approximately four years.

 

The following table presents the scheduled annual aggregate amortization expense as of June 30, 2021: 

     
For the years ending December 31,    
(In thousands)   
Remainder of 2021  $5,224 
2022   10,448 
2023   10,381 
2024   9,005 
2025   6,630 
Thereafter   750 
Patents, net   $42,438 

 

For the six months ended June 30, 2021, Acacia accrued patent and patent rights acquisition costs totaling $15.0 million, of which $10.0 million is due December 1, 2021 and $5.0 million is due February 18, 2023. Such amounts are included in Accrued patent investment costs and Other long-term liabilities in the accompanying consolidated balance sheet as of June 30, 2021, respectively.