Acquired Intangible Assets

3 Months Ended

Mar. 31, 2022

Acquired Intangible Assets [Abstract]

Acquired Intangible Assets

Note 7.  Acquired Intangible Assets

Acquired identifiable intangible assets consist of the following:

	March 31, 2022			December 31, 2021
	(In thousands)
Customer relationships	$	156,894		$	157,020
Patents, developed technology and intellectual property		14,123			14,123
Trademarks and trade names		8,880			8,880
Non-compete agreements		3,282			3,280
Supply agreements		800			800
Leaseholds		160			160
Total acquired intangible assets		184,139			184,263
Less accumulated amortization (1)		(81,058	)		(78,932	)
Net acquired intangible assets	$	103,081		$	105,331

(1) Applies to all intangible assets, except for trademarks and trade names totaling $2.6 million, which has an indefinite useful life and, as such, is not being amortized.

Total amortization expense for acquired intangible assets was $2.1 million for both the three months ended March 31, 2022 and 2021.  Based on the current estimated useful lives assigned to our intangible assets, amortization expense is estimated to be $6.5 million for the remainder of 2022, $8.3 million in 2023, $8.3 million in 2024, $8.3 million in 2025 and $69.1 million in the aggregate for the years 2026 through 2041.