Intangible Assets, Net

12 Months Ended

Dec. 31, 2023

Intangible Assets, Net [Abstract]

Intangible Assets, Net

9.     INTANGIBLE ASSETS, NET

Intangible assets, exclusive of goodwill, consisted of the following at December 31, 2023:

	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	960,033	$	(343,099)	$	—	$	616,934
Customer lists		806,257		(606,192)		—		200,065
Permits and other		784,905		(139,192)		(40,784)		604,929
		2,551,195		(1,088,483)		(40,784)		1,421,928
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		181,613		—		—		181,613
Intangible assets, exclusive of goodwill	$	2,732,808	$	(1,088,483)	$	(40,784)	$	1,603,541

The weighted-average amortization period of long-term franchise agreements and contracts acquired during the year ended December 31, 2023 was 19.5 years. The weighted-average amortization period of customer lists acquired during the year ended December 31, 2023 was 12.2 years. The weighted-average amortization period of finite-lived permits and other acquired during the year ended December 31, 2023 was 40.0 years.

Intangible assets, exclusive of goodwill, consisted of the following at December 31, 2022:

	Gross				Accumulated		Net
	Carrying		Accumulated		Impairment		Carrying
	Amount		Amortization		Loss		Amount
Finite-lived intangible assets:
Long-term franchise agreements and contracts	$	916,582	$	(297,382)	$	—	$	619,200
Customer lists		782,033		(532,739)		—		249,294
Permits and other		779,689		(115,095)		(40,784)		623,810
		2,478,304		(945,216)		(40,784)		1,492,304
Indefinite-lived intangible assets:
Solid waste collection and transportation permits		181,613		—		—		181,613
Intangible assets, exclusive of goodwill	$	2,659,917	$	(945,216)	$	(40,784)	$	1,673,917

Estimated future amortization expense for the next five years relating to finite-lived intangible assets owned as of December 31, 2023 is as follows:

For the year ending December 31, 2024	$	144,486
For the year ending December 31, 2025	$	126,061
For the year ending December 31, 2026	$	109,934
For the year ending December 31, 2027	$	95,848
For the year ending December 31, 2028	$	85,582