Goodwill and intangible assets consist of the following at December 31, 2020 and 2019 (amounts in thousands):

As part of the Company’s annual goodwill impairment analysis, we determined the fair value of goodwill utilizing a combination of a discounted cash flow analysis incorporating variables such as revenue projections, projected operating cash flow margins, and discount rates, as well as a market based approach employing comparable sales analysis. The valuation assumptions used in the discounted cash flow model reflect historical performance of the Company and prevailing values in the broadcast and cable markets as well as the extent of the economic downturn related to the COVID-19 pandemic and the expected timing of recovery. The result of our annual impairment test indicated that the carrying amount of the Snap reporting unit exceeded the fair value primarily due to the economic downturn related to the COVID-19 pandemic, the expected timing of recovery, and the expected growth of the business. As a result, for the year ended December 31, 2020, we recorded a goodwill impairment charge of $1.7 million, which was presented as impairment of goodwill and intangibles in our accompanying Consolidated Statements of Operations. The Company determined that the goodwill impairment was an indicator of impairment under ASC 360. As result, the Company performed a recoverability test for the other finite lived intangible assets of Snap to determine whether an impairment loss should be measured. The undiscounted cash flows in the recoverability test of Snap’s other finite lived intangible assets was less than the carrying value. As a result, for the year ended December 31, 2020, we calculated the fair value of the other finite lived intangible assets using a discounted cash flow model and recorded an impairment charge of $1.1 million to the customer relationships intangible asset, which was presented as impairment of goodwill and intangibles in our accompanying Consolidated Statements of Operations. No impairment charges were recorded for the year ended December 31, 2019.

A summary of changes in the Company’s broadcast licenses, goodwill and other indefinite lived intangible assets, on a net basis, for the years ended December 31, 2020 and 2019, is as follows (amounts in thousands):

(a)As a result of a measurement period adjustment related to the acquisition of Snap.

A summary of the changes in the Company’s finite lived intangible assets for the years ended December 31, 2020 and 2019 is as follows (amounts in thousands):


	Net Balance at								Net Balance at
	December 31, 2019		Additions		Impairment		Amortization		December 31, 2020
Affiliate and customer relationships	$	14,352	$	—	$	(1,059)	$	(5,989)	$	7,304
Advertiser relationships		138		—		—		(138)		—
Non-compete agreement		826		—		—		(497)		329
Programming contracts		517		—		—		(90)		427
Other intangibles		68		—		—		(53)		15
Total finite-lived intangibles	$	15,901	$	—	$	(1,059)	$	(6,767)	$	8,075


	Net Balance at								Net Balance at
	December 31, 2018		Additions		Impairment		Amortization		December 31, 2019
Affiliate and customer relationships	$	20,273	$	1,668	$	—	$	(7,589)	$	14,352
Advertiser relationships		690		—		—		(552)		138
Non-compete agreement		686		1,078		—		(938)		826
Programming contracts		607		—		—		(90)		517
Other intangibles		144		—		—		(76)		68
Total finite-lived intangibles	$	22,400	$	2,746	$	—	$	(9,245)	$	15,901

The aggregate amortization expense of the Company’s amortizable intangible assets was $6.8 million and $9.2 million for the years ended December 31, 2020 and 2019, respectively. The weighted average remaining amortization period is 1.5 years at December 31, 2020. Future estimated amortization expense is as follows (amounts in thousands):


Year Ending December 31,	Amount
2021	$	6,210
2022		1,550
2023		112
2024		112
2025 and thereafter		91
	$	8,075