Intangible Assets and Goodwill (Tables)

3 Months Ended

Mar. 31, 2021

Intangible Assets and Goodwill

Schedule of finite-lived intangible assets, net

The components of intangible assets were as follows (in thousands, except for useful life):

Balance at March 31, 2021

Balance at December 31, 2020

Weighted-

Gross

Net

Gross

Net

Average Useful

Carrying

Accumulated

Carrying

Carrying

Accumulated

Carrying

Lives (Years)

Amount

Amortization

Amount

Amount

Amortization

Amount

Finite-lived intangible assets:

Licensed IP

12.5

$

271,000

$

104,093

$

166,907

$

271,000

$

98,709

$

172,291

Schedule of estimated aggregate amortization expense

Estimated aggregate amortization expense based on the current carrying value of amortizable intangible assets is as follows (in thousands):

		Remainder of
		2021		2022		2023		2024		2025		Thereafter
Amortization expense	$	16,155	$	21,536	$	21,536	$	21,536	$	21,536	$	64,608