Note 9 - Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Goodwill [Table Text Block]

	Domestic		International			Total
Balance at December 31, 2017	$	621,451	$	100,072		$	721,523
Acquisitions of businesses, net		-		46,788			46,788
Foreign currency translation		-		(3,656	)		(3,656	)
Balance at December 31, 2018		621,451		143,204			764,655
Acquisitions of businesses, net		37,758		3,078			40,836
Foreign currency translation		-		(207	)		(207	)
Balance at December 31, 2019	$	659,209	$	146,075		$	805,284

	Year Ended December 31, 2019							Year Ended December 31, 2018
	Gross		Accumulated Impairment			Net		Gross		Accumulated Impairment			Net
Domestic	$	1,162,402	$	(503,193	)	$	659,209	$	1,124,644	$	(503,193	)	$	621,451
International		150,686		(4,611	)		146,075		147,815		(4,611	)		143,204
Total	$	1,313,088	$	(507,804	)	$	805,284	$	1,272,459	$	(507,804	)	$	764,655

Schedule Of Intangible Assets [Table Text Block]

	Weighted Average		December 31, 2019							December 31, 2018
	Amortization Years		Gross		Accumulated Amortization			Net Book Value		Gross		Accumulated Amortization			Net Book Value
Finite-lived intangible assets:
Tradenames		9	$	56,669	$	(36,613	)	$	20,056	$	56,378	$	(32,416	)	$	23,962
Customer lists		12		369,932		(314,380	)		55,552		368,343		(307,149	)		61,194
Patents		13		131,086		(110,554	)		20,532		131,030		(101,060	)		29,970
Developed technology		9		82,886		(17,872	)		65,014		13,169		(12,058	)		1,111
Software		-		1,046		(1,046	)		-		1,046		(1,046	)		-
Non-compete/other		4		12,063		(3,804	)		8,259		3,829		(1,897	)		1,932
Total finite-lived intangible assets			$	653,682	$	(484,269	)	$	169,413	$	573,795	$	(455,626	)	$	118,169
Indefinite-lived tradenames				128,321		-			128,321		128,321		-			128,321
Total intangible assets			$	782,003	$	(484,269	)	$	297,734	$	702,116	$	(455,626	)	$	246,490