INTANGIBLE ASSETS

3 Months Ended

Mar. 31, 2023

INTANGIBLE ASSETS

INTANGIBLE ASSETS

6.    INTANGIBLE ASSETS

Intangible assets on the Company’s condensed consolidated balance sheets consist of the following:

		March 31, 2023						December 31, 2022
		Gross		Accumulated		Net Book		Gross		Accumulated		Net Book
	Life	Amount		Amortization		Value		Amount		Amortization		Value
Customer lists	5 - 18 years	$	112,437	$	(36,318)	$	76,119	$	112,378	$	(34,377)	$	78,001
Trade name	10 - 19 years		15,322		(7,176)		8,146		15,320		(6,900)		8,420
Design and technologies	10 - 15 years		41,266		(9,504)		31,762		41,212		(8,558)		32,654
Total		$	169,025	$	(52,998)	$	116,027	$	168,910	$	(49,835)	$	119,075

Amortization expense for intangible assets was $3,009 and $2,434 for the three months ended March 31, 2023 and 2022, respectively.

Estimated future intangible asset amortization expense as of March 31, 2023 is as follows:

	Estimated
	Amortization Expense
Remainder of 2023	$	9,205
2024		11,881
2025		11,865
2026		11,767
2027		11,323
Thereafter		59,986
Total estimated amortization expense	$	116,027