Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of other intangible assets

Other intangible assets are as follows (in thousands):

	December 31,
	2019				2018
	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Finite lived intangible assets:
Patents and technology	$	17,493	$	6,715	$	18,884	$	6,689
Customer lists	15,367		6,013		15,367		5,259
Trademarks and brand names	1,351		1,160		1,485		1,149
Total finite lived intangible assets acquired	34,211		13,888		35,736		13,097
Deferred financing costs	—		—		1,924		496
Total amortizable intangible assets	34,211		$	13,888	37,660		$	13,593
Indefinite lived intangible assets:
Trademarks and brand names	2,760				2,760
Total other intangible assets	$	36,971			$	40,420
Carrying amount:
Other intangible assets, net	$	23,083			$	26,827

Schedule of estimated future amortization expense

Estimated future amortization expense for other finite lived intangible assets, including deferred financing costs, at December 31, 2019 is as follows (in thousands):

Year ending December 31,
2020	$	1,941
2021	1,935
2022	1,915
2023	1,858
2024	1,854
Thereafter	10,109
Other amortizable intangible assets, net	$	19,612