Other Intangible Assets

6 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Other intangible assets

Other Intangible Assets

Other intangible assets are as follows (in thousands):

	June 30, 2019				December 31, 2018
	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Finite-lived intangible assets:
Patents and technology	$	18,851	$	7,270	$	18,884	$	6,689
Customer lists	15,367		5,636		15,367		5,259
Trademarks and brand names	1,358		1,140		1,485		1,149
Total finite-lived intangible assets acquired	35,576		14,046		35,736		13,097
Deferred financing costs	—		—		1,924		496
Total amortizable intangible assets	35,576		$	14,046	37,660		$	13,593
Indefinite-lived intangible assets:
Trademarks and brand names	2,760				2,760
Total other intangible assets	$	38,336			$	40,420
Carrying value:
Other intangible assets, net	$	24,290			$	26,827

Finite-lived intangible assets acquired are amortized on a straight-line basis over two to 20 years. Amortization of finite-lived intangible assets acquired totaled $0.5 million and $0.3 million for the three months ended June 30, 2019 and 2018, respectively, and $1.0 million and $0.7 million for the six months ended June 30, 2019 and 2018.

Amortization of deferred financing costs totaled zero and $0.1 million for the three months ended June 30, 2019 and 2018, respectively, and $1.4 million and 0.2 million for the six months ended June 30, 2019 and 2018.