Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Intangible Assets Gross Excluding Goodwill [Abstract]

Schedule of Other Intangible Assets

Other intangible assets are summarized as follows:

	December 31,
	2019			2018
	(in thousands)
Finite-lived intangible assets:
Customer relationships	$	99,905		$	114,603
Noncompete agreements		13,150			14,402
Trademarks		10,520			10,753
Internal-use software licenses		21,982			29,394
Patents		2,840			2,840
		148,397			171,992
Accumulated amortization		(73,449	)		(79,535	)
		74,948			92,457
Indefinite-lived intangible assets:
Licenses		16,885			16,915
	$	91,833		$	109,372

Estimated Amortization Expense for Finite-Lived Intangible Assets

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

Year	(in thousands)
2020	$	20,189
2021	$	12,260
2022	$	11,262
2023	$	9,851
2024	$	7,677