Other Intangible Assets

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

With the acquisition of Florida Chemical on May 10, 2013, the Company recorded increases in finite lived intangible assets of $14.1 million in patents and technology, $29.3 million in customer lists and $1.0 million in trademarks and brand names. In addition, the Company recorded $11.6 million in indefinite lived trademarks and brand names. These acquired intangible assets were recorded at fair value as of the date of acquisition. Amortization of these other intangible assets will not be deductible for income tax purposes.

Intangible assets acquired are amortized on a straight-line basis over two to 20 years. Amortization of intangible assets acquired totaled $4.8 million, $3.9 million and $2.1 million for the years end ended December 31, 2014, 2013 and 2012, respectively.

Amortization of deferred financing costs totaled $0.3 million, $0.2 million and $0.9 million for the years ended December 31, 2014, 2013 and 2012, respectively. During the years ended December 31, 2013 and 2012, the carrying value of deferred financing costs was reduced by less than $0.1 million and by $1.8 million, respectively, upon repayments of the Company’s convertible senior notes.

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

During the years ended December 31, 2014, 2013 and 2012, no impairments were recognized related to other intangible assets.