Goodwill was $1.48 billion at December 31, 2020 and 2019. Goodwill is tested for impairment on at least an annual basis, in accordance with the subsequent measurement provisions of the accounting guidance for goodwill. Consistent with prior years, the Company performed its annual impairment test in the third quarter of 2020 and determined that goodwill was

not impaired.

Intangible assets, net, consist of the following (in thousands):


	December 31, 2020
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value
Physician and hospital agreements	$	107,246	$	(83,089	)	$	24,157
Other technology		5,197		(2,712	)		2,485

	$	112,443	$	(85,801	)	$	26,642


	December 31, 2019
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value
Physician and hospital agreements	$	99,828	$	(73,506	)	$	26,322
O ther technology		3,682		(1,417	)		2,265

	$	103,510	$	(74,923	)	$	28,587

During the year ended December 31, 2020, the Company recorded intangible assets related to acquisitions totaling $1.3 million, consisting primarily of physician and hospital agreements. The weighted-average amortization period for these physician and hospital agreements is approximately seven years.

Amortization expense for intangible assets was $7.6 million, $7.3 million and $6.8 million for the years ended December 31, 2020, 2019 and 2018, respectively.

Amortization expense for existing intangible assets for the next five years is expected to be as follows (in thousands):


2021	$	7,117
2022		5,245
2023		4,264
2024		2,883
2025		1,966