v3.20.2
GOODWILL AND INTANGIBLE ASSETS
 6 Months Ended
Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND INTANGIBLE ASSETS GOODWILL AND INTANGIBLE ASSETS
Goodwill

Changes in the carrying amount of goodwill for the six months ended June 30, 2020 were as follows:

Total
Goodwill at January 1, 2019$—  
Vilex Companies acquisition17,170  
Divestiture of Vilex in Tennessee, Inc. (3,397) 
Goodwill at January 1, 2020$13,773  
Telos acquisition1,912  
Orthex measurement period adjustment(688) 
ApiFix acquisition53,423  
Goodwill at June 30, 2020$68,420  

Intangible Assets

As of June 30, 2020, the balances of amortizable intangible assets were as follows:

Weighted-Average Amortization PeriodGross Intangible AssetsAccumulated AmortizationNet Intangible Assets
Patents15.3 years$33,182  $(1,019) $32,163  
Intellectual Property10.8 years8,950  (473) 8,477  
License Agreements3.1 years2,765  (1,199) 1,566  
Total amortizable assets$44,897  $(2,691) $42,206  
As of December 31, 2019, the balances of amortizable intangible assets were as follows:

Weighted-Average Amortization PeriodGross Intangible AssetsAccumulated AmortizationNet Intangible Assets
Patents17.4 years$9,287  $(363) $8,924  
Intellectual Property10.7 years4,020  (213) 3,807  
License Agreements3.4 years2,765  (1,012) 1,753  
Total amortizable assets$16,072  $(1,588) $14,484  

On June 10, 2020, we purchased certain intellectual property assets from Band-Lok, LLC, a North Carolina limited liability company ("Band-Lok"), related to its Tether Clamp and Implantation System ("Tether Clamp System") for $3,394 in total consideration. We use the Tether Clamp System in connection with our Bandloc 5.5/6.0 System. We were previously the sole licensee of the purchased assets under a license agreement with Band-Lok.

Licenses are tied to product launches and do not begin amortizing until the product is launched to the market.
Trademarks are non-amortizing intangible assets which were $13,357 and $4,490 as of June 30, 2020 and December 31, 2019, respectively. Concurrently with our acquisition of each company, we acquired the trademark of Orthex on June 4, 2019 valued at $4,230, the trademark of Telos on March 9, 2020 valued at $210 and the trademark of ApiFix on April 1, 2020 valued at $8,620. Trademarks are recorded in Other Intangible assets on the Condensed Consolidated Balance Sheets.