Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

The following table summarizes the carrying amount of intangible assets, net of accumulated amortization.

	September 30, 2021
(in thousands)	Gross Carrying Value		Accumulated Amortization		Net Carrying Amount
Patents	$	1,471	$	(1,152)	$	319
Acquired intellectual property and reacquired rights	15,125		(8,545)		6,580
Internal-use software implementation costs	2,873		(846)		2,027
	$	19,469	$	(10,543)	$	8,926

	December 31, 2020
(in thousands)	Gross Carrying Value		Accumulated Amortization		Net Carrying Amount
Patents	$	1,651	$	(1,203)	$	448
Acquired intellectual property and reacquired rights	15,126		(7,770)		7,356
Internal-use software implementation costs	1,675		(147)		1,528
	$	18,452	$	(9,120)	$	9,332