v3.22.4
Intangible Assets
12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets Intangible AssetsHETLIOZ®. In January 2014, the Company announced that the FDA had approved the New Drug Application (NDA) for HETLIOZ®. As a result of this approval, the Company met a milestone under its license agreement with Bristol-Myers Squibb (BMS) that required the Company to make a license payment of $8.0 million to BMS. In April 2018, the Company met its final milestone under its license agreement with BMS when cumulative worldwide sales of HETLIOZ® reached $250.0 million. As a result of the achievement of this milestone, the Company made a payment to BMS of $25.0 million in 2018. These milestone payments were determined to be additional consideration for the acquisition of the HETLIOZ® and capitalized as an intangible asset and is being amortized on a straight-line basis over the estimated economic useful life of the related product patents.
The following is a summary of the Company’s intangible assets as of December 31, 2022:
  December 31, 2022
(in thousands)Estimated
Useful Life
Gross
Carrying
Amount
Accumulated
Amortization
Net
Carrying
Amount
HETLIOZ®
March 2035$33,000 $14,435 $18,565 
The following is a summary of the Company’s intangible assets as of December 31, 2021:
  December 31, 2021
(in thousands)Estimated
Useful Life
Gross
Carrying
Amount
Accumulated
Amortization
Net
Carrying
Amount
HETLIOZ®
July 2035$33,000 $12,919 $20,081 
As of December 31, 2022 and 2021, the Company also had $27.9 million of fully amortized intangible assets related to Fanapt®.
Intangible assets are amortized over their estimated useful economic life using the straight-line method. Amortization expense for the years ended December 31, 2022, 2021 and 2020 was as follows:
 Year Ended December 31,
(in thousands)202220212020
HETLIOZ®
$1,516 $1,478 $1,478 
The following is a summary of the future intangible asset amortization schedule as of December 31, 2022:
(in thousands)Total20232024202520262027Thereafter
HETLIOZ®
$18,565 $1,516 $1,516 $1,516 $1,516 $1,516 $10,985