Intangibles (Tables)

3 Months Ended

Mar. 31, 2022

Goodwill And Intangible Assets Disclosure [Abstract]

Amortization of Intangible Assets Acquired

Amortization of intangible assets acquired is calculated using the straight-line method over the estimated useful lives of the assets.

	Estimated Life	March 31,			December 31,
	(years)	2022			2021
Capitalized patent costs	17-20	$	10,319		$	10,219
Intangible assets acquired:
Purchased intellectual property	10		250			250
Developed technology	5		24,929			1,560
Customer relationships	10		13,684			290
Gross intangible assets			49,182			12,319
Accumulated amortization			(7,349	)		(5,708	)
Intangibles, net		$	41,833		$	6,611

Amortization Expense on Intangible Assets

Amortization expense on intangible assets was as follows:

	Three		Three
	Months		Months
	Ended		Ended
	March 31,		March 31,
	2022		2021
Amortization expense	$	1,677	$	142

Estimated Future Aggregate Amortization Expense

For intangible assets recorded at March 31, 2022, the estimated future aggregate amortization expense for the years ending December 31, 2022 through December 31, 2026 is as follows:

	Amortization
As of March 31, 2022:	Expense
Remaining in 2022	$	4,933
2023		6,571
2024		6,558
2025		6,538
2026		6,506