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Note 9 - Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Text Block]

9.	Goodwill and Intangible Assets

The changes in the carrying amount of goodwill by reportable segment for the years ended December 31, 2021 and 2020 are as follows:

	*Domestic*			*International*			*Total*
Balance at December 31, 2019	$	659,209		$	146,075		$	805,284
Acquisitions of businesses, net		42,722			-			42,722
Foreign currency translation		604			6,618			7,222
Balance at December 31, 2020		702,535			152,693			855,228
Acquisitions of businesses, net		293,614			284,447			578,061
Foreign currency translation		(705	)		(22,910	)		(23,615	)
Balance at December 31, 2021	$	995,444		$	414,230		$	1,409,674

Refer to Note 3, “Acquisitions,” to the consolidated financial statements for further information regarding the Company’s acquisitions.

The details of the gross goodwill applicable to each reportable segment at December 31, 2021 and 2020 are as follows:

	*Year Ended December 31, 2021*							*Year Ended December 31, 2020*
	Gross		Accumulated Impairment			Net		Gross		Accumulated Impairment			Net
Domestic	$	1,498,637	$	(503,193	)	$	995,444	$	1,205,728	$	(503,193	)	$	702,535
International		418,841		(4,611	)	$	414,230		157,304		(4,611	)	$	152,693
Total	$	1,917,478	$	(507,804	)	$	1,409,674	$	1,363,032	$	(507,804	)	$	855,228

The following table summarizes intangible assets by major category as of December 31, 2021 and 2020:

	Weighted Average	*December 31, 2021*							*December 31, 2020*
	Amortization Years	Gross		Accumulated Amortization			Net Book Value		Gross		Accumulated Amortization			Net Book Value
Finite-lived intangible assets:
Tradenames	14	$	162,563	$	(47,353	)	$	115,210	$	58,729	$	(40,891	)	$	17,838
Customer lists	11		573,910		(335,188	)		238,722		370,736		(321,531	)		49,205
Patents and technology	14		662,341		(169,868	)		492,473		233,271		(146,544	)		86,727
Software	-		1,046		(1,046	)		-		1,046		(1,046	)		-
Non-compete/other	5		79,416		(12,980	)		66,436		16,469		(6,537	)		9,932
Total finite-lived intangible assets		$	1,479,276	$	(566,435	)	$	912,841	$	680,251	$	(516,549	)	$	163,702
Indefinite-lived tradenames			128,321		-			128,321		128,321		-			128,321
Total intangible assets		$	1,607,597	$	(566,435	)	$	1,041,162	$	808,572	$	(516,549	)	$	292,023

Amortization expense of intangible assets was $49,886, $32,280, and $28,644 in 2021, 2020 and 2019, respectively. Excluding the impact of any future acquisitions, the Company estimates amortization expense for the next five years will be as follows: 2022 - $105,577; 2023 - $101,076; 2024 - $95,444; 2025 - $91,218; 2026 - $84,337.