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Intangible Assets, Net

12 Months Ended

Dec. 31, 2021

9. INTANGIBLE ASSETS, NET

Intangible assets, exclusive of goodwill, consisted of the following at December 31, 2021:


	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	724,128	$	(278,827)	$	—	$	445,301
Customer lists		711,047		(450,109)		—		260,938
Permits and other		538,481		(94,807)		—		443,674
		1,973,656		(823,743)		—		1,149,913
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		181,613		—		—		181,613
E&P facility permits		59,855		—		(40,784)		19,071
		241,468		—		(40,784)		200,684
Intangible assets, exclusive of goodwill	$	2,215,124	$	(823,743)	$	(40,784)	$	1,350,597

The weighted-average amortization period of long-term franchise agreements and contracts acquired during the year ended December 31, 2021 was 20.1 years. The weighted-average amortization period of customer lists acquired during the year ended December 31, 2021 was 11.6 years. The weighted-average amortization period of finite-lived permits and other acquired during the year ended December 31, 2021 was 40.0 years.

Intangible assets, exclusive of goodwill, consisted of the following at December 31, 2020:


	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	600,674	$	(234,972)	$	—	$	365,702
Customer lists		636,035		(382,020)		—		254,015
Permits and other		378,952		(79,277)		—		299,675
		1,615,661		(696,269)		—		919,392
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		172,056		—		—		172,056
Material recycling facility permits		42,283		—		—		42,283
E&P facility permits		59,855		—		(38,507)		21,348
		274,194		—		(38,507)		235,687
Intangible assets, exclusive of goodwill	$	1,889,855	$	(696,269)	$	(38,507)	$	1,155,079

Estimated future amortization expense for the next five years relating to finite-lived intangible assets is as follows:


For the year ending December 31, 2022	$	137,771
For the year ending December 31, 2023	$	119,458
For the year ending December 31, 2024	$	103,820
For the year ending December 31, 2025	$	89,002
For the year ending December 31, 2026	$	75,122