Other Intangible Assets

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Other intangible assets are as follows (in thousands):



	June 30, 2018				December 31, 2017
	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Finite-lived intangible assets:
Patents and technology	$	17,539	$	6,119	$	17,310	$	5,586
Customer lists	30,877		8,891		30,877		8,127
Trademarks and brand names	1,539		1,141		1,549		1,117
Total finite-lived intangible assets acquired	49,955		16,151		49,736		14,830
Deferred financing costs	1,882		291		1,791		96
Total amortizable intangible assets	51,837		$	16,442	51,527		$	14,926
Indefinite-lived intangible assets:
Trademarks and brand names	11,630				11,630
Total other intangible assets	$	63,467			$	63,157

Carrying value:
Other intangible assets, net	$	47,025			$	48,231

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 $0.7 million and $0.7 million for the three months ended June 30, 2018 and 2017, respectively, and $1.3 million and $1.4 million for the six months ended June 30, 2018 and 2017, respectively.

Amortization of deferred financing costs totaled $0.1 million and $0.1 million for the three months ended June 30, 2018 and 2017, respectively, and $0.2 million and $0.3 million for the six months ended June 30, 2018 and 2017, respectively.