INTANGIBLE ASSETS

9 Months Ended

Sep. 30, 2022

INTANGIBLE ASSETS

INTANGIBLE ASSETS

7.    INTANGIBLE ASSETS

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

		September 30, 2022						December 31, 2021
		Gross		Accumulated		Net Book		Gross		Accumulated		Net Book
	Life	Amount		Amortization		Value		Amount		Amortization		Value
Customer lists	5 - 18 years	$	111,200	$	(32,104)	$	79,096	$	94,079	$	(27,639)	$	66,440
Trade name	10 - 19 years		15,040		(6,549)		8,491		14,649		(5,927)		8,722
Design and technologies	10 - 15 years		40,543		(7,357)		33,186		34,241		(5,617)		28,624
Total		$	166,783	$	(46,010)	$	120,773	$	142,969	$	(39,183)	$	103,786

Intangible assets resulting from the acquisition of FPH, ThinGap and Airex were $28,611 (Note 2). The intangible assets acquired consist of customer lists, technology, and tradenames.

Amortization expense for intangible assets was $3,054 and $1,504 for the three months ended September 30, 2022 and 2021, respectively. For the nine months ended September 30, 2022 and 2021, amortization expense was $8,133 and $4,527, respectively.

Estimated future intangible asset amortization expense as of September 30, 2022 is as follows:

	Estimated
	Amortization Expense
Remainder of 2022	$	3,030
2023		12,115
2024		11,792
2025		11,777
2026		11,681
2027		11,238
Thereafter		59,140
Total estimated amortization expense	$	120,773