Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of other intangible assets

Other intangible assets are as follows (in thousands):

	December 31,
	2016				2015
	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Finite lived intangible assets:
Patents and technology	$	16,815	$	4,537	$	16,544	$	3,461
Customer lists	30,877		6,518		30,467		4,904
Trademarks and brand names	1,467		1,069		1,040		925
Total finite lived intangible assets acquired	49,159		12,124		48,051		9,290
Deferred financing costs	1,804		117		1,665		858
Total amortizable intangible assets	50,963		$	12,241	49,716		$	10,148
Indefinite lived intangible assets:
Trademarks and brand names	11,630				11,630
Total other intangible assets	$	62,593			$	61,346
Carrying value:
Other intangible assets, net	$	50,352			$	51,198

Schedule of estimated future amortization expense

Estimated future amortization expense for other intangible assets, including deferred financing costs, at December 31, 2016 is as follows (in thousands):

Year ending December 31,
2017	$	3,070
2018	2,990
2019	2,930
2020	2,638
2021	2,428
Thereafter	24,666
Other intangible assets, net	$	38,722