Intangible Assets

6 Months Ended

Jun. 30, 2020

Intangible Assets [Abstract]

Intangible Assets

4. INTANGIBLE ASSETS

The following table provides a summary of the Company’s intangible assets:

		June 30, 2020				December 31, 2019
	Estimated Useful Life	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Technology	3-15 years	$	11,691	$	9,108	$	11,691	$	8,131
IPR&D			126,321		—		126,321		—
Total		$	138,012	$	9,108	$	138,012	$	8,131

Amortization expense of intangible assets with definite lives was $488 and $484 for the three months ended June 30, 2020 and 2019 and $977 and $968 for the six months ended June 30, 2020 and 2019. Current and future amortization expense excludes IPR&D assets. Future amortization expense is projected as follows:

2020 (excluding the six months ended June 30, 2020)	$	845
2021		1,511
2022		18
2023		18
2024		18
2025 and thereafter		173
Total	$	2,583

The following table provides a summary of the Company’s goodwill, which is not amortized, but rather is tested annually for impairment:

	Six Months Ended		Twelve Months Ended
	June 30, 2020		December 31, 2019
Beginning Balance	$	234,781	$	105,257
Amounts acquired		—		129,524
Ending Balance	$	234,781	$	234,781