Intangibles (Tables)

9 Months Ended

Sep. 30, 2023

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

Intangible assets consist of the following (in thousands):

	September 30, 2023					December 31, 2022
	Estimated Weighted Avg Remaining Life	Gross Carrying Amount		Accumulated Amortization		Estimated Weighted Avg Remaining Life	Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets:
Customer lists	7.2	$	839,507	$	(509,610)	7.6	$	839,811	$	(460,885)
Backlog	0.0	7,496		(7,286)		0.1	8,301		(6,352)
Developed technology	8.4	97,886		(42,290)		8.3	79,763		(35,797)
		$	944,889	$	(559,186)		$	927,875	$	(503,034)
Indefinite-lived assets:
Trademarks and tradenames		$	1,389,843				$	1,369,391

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Twelve Month Period coinciding with the end of the company's Fiscal Third Quarter	Amortization Expense
2024	$	66,884
2025	57,668
2026	55,416
2027	47,063
2028	40,934
Thereafter	117,738
	$	385,703