INTANGIBLE ASSETS (Tables)

3 Months Ended

Mar. 31, 2018

INTANGIBLE ASSETS

Schedule of intangible assets

Intangible assets on the Company’s condensed consolidated balance sheets consist of the following (in thousands):

		March 31, 2018							December 31, 2017
	Life	Gross Amount		Accumulated amortization			Net Book Value		Gross Amount		Accumulated amortization			Net Book Value
Customer lists	8 - 17 years	$	42,548	$	(13,452	)	$	29,096	$	38,659	$	(12,721	)	$	25,938
Trade name	10 - 12 years	6,255		(2,932		)	3,323		6,213		(2,798		)	3,415
Design and technologies	10-12 years	5,293		(2,604		)	2,689		5,147		(2,443		)	2,704
Patents	17 years	24		(9		)	15		24		(8		)	16
Total		$	54,120	$	(18,997	)	$	35,123	$	50,043	$	(17,970	)	$	32,073

Schedule of estimated amortization expense for intangible assets

Estimated future intangible asset amortization expense as of March 31, 2018 is as follows (in thousands):

	Estimated Amortization Expense
Remainder of 2018	$	2,655
2019	3,540
2020	3,540
2021	3,266
2022	3,266
2023	3,184
Thereafter	15,672
Total estimated amortization expense	$	35,123