Intangible Assets Other Than Goodwill and Other Assets

9 Months Ended

Sep. 30, 2015

Intangible Assets Other Than Goodwill and Other Assets

Note 13 — Intangible Assets Other Than Goodwill and Other Assets

Intangible assets other than goodwill and other assets consist primarily of licenses, product lines, customer relationships and trademarks. Amortized intangible assets are included in Intangibles in the accompanying balance sheets. Trademarks are disclosed separately in the accompanying balance sheets. Debt offering costs from the issuance of the Company’s convertible senior notes are included in Other Long Term Assets in the accompanying balance sheets. Intangible assets and debt issuance costs as of December 31, 2014 and September 30, 2015 are as follows (in thousands, except for weighted useful lives):

		December 31, 2014							September 30, 2015
	Weighted	Gross							Gross
	Useful	Carrying		Accumulated			Net		Carrying		Accumulated			Net
	Lives	Amount		Amortization			Amount		Amount		Amortization			Amount
	(Years)

Amortized Intangible Assets:
Licenses	4.96	$	91,488	$	(85,113	)	$	6,375	$	91,488	$	(86,816	)	$	4,672
Product lines	5.82		66,594		(27,235	)		39,359		67,794		(30,799	)		36,995
Customer relationships	5.21		9,348		(7,831	)		1,517		9,348		(8,246	)		1,102
Trade names	5.00		3,000		(1,450	)		1,550		3,000		(1,849	)		1,151
Non-compete/Employment contracts	3.90		3,333		(3,230	)		103		3,333		(3,256	)		77
Total amortized intangible assets			173,763		(124,859	)		48,904		174,963		(130,966	)		43,997
Deferred Costs:
Debt issuance costs	4.00		14,923		(6,418	)		8,505		15,110		(7,882	)		7,228
Unamortized Intangible Assets:
Trademarks			2,308		—			2,308		2,308		—			2,308
Total Intangible Assets		$	190,994	$	(131,277	)	$	59,717	$	192,381	$	(138,848	)	$	53,533

Amortization expense related to limited life intangible assets and debt issuance costs was $3.7 million and $2.7 million for the three months ended September 30, 2014 and 2015, respectively, and $8.3 million and $7.6 million for the nine months ended September 30, 2014 and 2015, respectively.