Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Other intangible assets are as follows (in thousands):



	December 31,
	2014				2013
	Cost		Accumulated Amortization		Cost		Accumulated Amortization
Finite lived intangible assets:
Patents and technology	$	20,061	$	4,569	$	18,996	$	3,244
Customer lists	52,607		11,829		52,607		9,018
Trademarks and brand names	7,191		2,706		7,191		2,053
Other	—		—		191		—
Total finite lived intangible assets acquired	79,859		19,104		78,985		14,315
Deferred financing costs	1,655		512		1,392		169
Total amortizable intangible assets	81,514		$	19,616	80,377		$	14,484
Indefinite lived intangible assets:
Trademarks and brand names	11,630				11,630
Total other intangible assets	$	93,144			$	92,007

Carrying value:
Other intangible assets, net	$	73,528			$	77,523

Schedule of estimated future amortization expense

Estimated future amortization expense for other intangible assets, including deferred financing costs, at December 31, 2014 is as follows (in thousands):



Year ending December 31,
2015	$	5,104
2016	4,872
2017	4,718
2018	4,457
2019	4,247
Thereafter	38,500
Other intangible assets, net	$	61,898